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Evidence-based Complementary and Alternative Medicine : eCAM logoLink to Evidence-based Complementary and Alternative Medicine : eCAM
. 2017 Dec 6;2017:2038095. doi: 10.1155/2017/2038095

Use of Western Medicine and Traditional Korean Medicine for Joint Disorders: A Retrospective Comparative Analysis Based on Korean Nationwide Insurance Data

Boyoung Jung 1,2,, Sukjin Bae 2, Soyoon Kim 3,4,
PMCID: PMC5804363  PMID: 29456569

Abstract

This study aimed to compare the usage of Western medicine and traditional Korean medicine for treating joint disorders in Korea. Data of claims from all medical institutions with billing statements filed to HIRA from 2011 to 2014 for the four most frequent joint disorders were used for the analysis. Data from a total of 1,100,018 patients who received medical services from 2011 to 2014 were analyzed. Descriptive statistics are presented as type of care and hospital type. All statistical analyses were performed using IBM SPSS for Windows version 21. Of the 1,100,018 patients with joint disorders, 456,642 (41.5%) were males and 643,376 (58.5%) were females. Per diem costs of hospitalization in Western medicine clinics and traditional Korean medicine clinics were approximately 160,000 KRW and 50,000 KRW, respectively. Among costs associated with Western medicine, physiotherapy cost had the largest proportion (28.78%). Among costs associated with traditional Korean medicine, procedural costs and treatment accounted for more than 70%, followed by doctors' fees (21.54%). There were distinct differences in patterns of medical care use and cost of joint disorders at the national level in Korea. This study is expected to contribute to management decisions for musculoskeletal disease involving joint disorders.

1. Introduction

Musculoskeletal diseases are one of the leading causes of disability worldwide. It is a major contributor to health burden and health care costs [1]. Korea has a rapidly aging population due to the decrease in birth rate and increase in life expectancy. The percentage of the population aged 65 years or older will increase from 10.3% in 2008 to 15.6% in 2020 and 38.2% in 2050 [2]. Previous studies have reported findings on the prevalence of musculoskeletal disease [3, 4]. As the Korean population continues to age, the economic burden of musculoskeletal disease will continue to increase. The total economic burden of treating musculoskeletal is about 8.1 billion dollars [2]. Musculoskeletal diseases are the most common health problems that require the use of traditional Korean medicine [5], an integral part of prevailing practice and belief systems throughout Korea's history. Starting from the late 19th century, Western medical practices were introduced by Christian missionaries to Korea. These practices quickly supplanted traditional Korean medicine in institutional health care. After the Korean War, the government revived interest in traditional Korean medicine and established colleges that specialize in that field, in addition to colleges of Western medicine [6]. With this historical background, the Korean medical system is characterized by a dual [7, 8], mutually exclusive medical system consisting of Western medicine and traditional Korean medicine practices [9]. In Korea, primary care physicians work mostly in solo private practices and are reimbursed on a fee-for-service basis. This system enables patients to choose and retain individual physicians regardless of changes in employment status. Therefore, Koreans can use both Western and traditional Korean medicine to treat musculoskeletal disorders. Previous studies have assessed the prevalence and cost of Korean medicine [5, 6, 1013]. However, most of these studies did not focus on joint disorders [11, 1416]. Particularly, the statuses of health care utilization associated with joint disorders including the scale of the whole population and health care costs of patients receiving treatment for joint disorders are currently unknown. Therefore, the objective of this study was to analyze claim data submitted to the Korean National Health Insurance (NHI) and assessed by the Health Insurance Review and Assessment Service (HIRA) to compare medical care use between Western medicine and traditional Korean medicine. The results of this study will provide basic information for future management decisions for musculoskeletal diseases especially joint disorders in Korea.

2. Materials and Methods

2.1. Data Source

This study used claims data from the 2011–2014 National Patient Sample (NPS) dataset of HIRA. Datasets generated and/or analyzed for this study period are available from the HIRA-NPS repository [17]. The NPS includes 3% sample data of 2011–2014 national insurance billing data. It can represent the country as a whole (46 million patients). The total number of filed claims and total health expenditure have increased steadily. As of 2011, the total number of filed claims has reached 1.3 billion, with a total health expenditure of ~51.5 trillion KRW. Patients were stratified according to sex and age in 5-year intervals. These HIRA claim data are compiled by health care providers nationwide. They correspond to the number of claims submitted by patients. Claims from patients with the Medicaid program, government expenditures, and veteran patients are also included in these claim data [18]. All data were deidentified to ensure patient confidentiality. The HIRA Research Ethics Committee of South Korea approved the study protocol.

2.2. Study Population

After reviewing frequent diseases each year in traditional Korean medicine as described previously [19], patients with the following four most frequent joint disorders were included in this study: M17 (gonarthrosis [arthrosis of knee]), M75 (shoulder lesions), S63 (dislocation, sprain, and strain of joints and ligaments at wrist and hand level), and S93 (dislocation, sprain, and strain of joints and ligaments at ankle and foot level). Although dorsalgia (M54) was at the top of the list, it was excluded from analysis since there was no change in ranking by year. To observe changes in the ranking of diseases by year, the remaining joints were included in the study. We focused on musculoskeletal disorders and injuries of the extremities. The diagnoses were coded using the 6th revision of the Korean Classification of Diseases (KCD-6) adapted from the International Classification of Diseases, 10th revision. Data from the billing statements for patients with missing cost data and those with zero total cost were excluded. Patient might have visited more than once during the study period (i.e., more than one claim per patient). Therefore, the number of claims in this study was higher than the total number of patients. A total of 7,996,903 claims for 1,100,018 patients with joint diseases with prefix codes of M17, M75, S63, and S93 in primary diagnoses were included for analysis through discussion of a panel of three clinicians (one public health specialist, one Korean medical doctor, and one statistician). A total of 1,100,018 patients were finally included in our analysis (Figure 1).

Figure 1.

Figure 1

Flowchart of the study sample.

2.3. Episode Creating Process

Claims data provided by HIRA included raw data of treatment prescriptions for all patients who received medical services over the course of one year after removing personal and corporate information. Because the claims were submitted monthly, charges in the statement reflected up to one month of information. In other words, patients who had been hospitalized for more than one month would have been charged separately for each month. In such cases, errors such as overestimation of the number of inpatients and underestimation of medical expenses might occur when performing statistical analyses. Therefore, episodes, involving collecting and calibrating several claims charged monthly for one consecutive medical practice were used. In this study, separated claim forms of hospitalized patients were bundled into one hospitalization episode. Variables used in the episode creating process included claims identification key, patient identification key, insurance type, main diagnosis code, treatment type, treatment start date, and treatment end date.

2.4. Main Descriptive Variables

The main descriptive variables were frequency and cost of medical care without addressing a specific hypothesis. Frequency included the number of hospitalizations and outpatient visits in Western medicine and traditional Korean medicine clinics, intervention (surgical and nonsurgical), and annual usage. Rehabilitation-related nonsurgical interventions were classified according to National Evidence-based Healthcare Collaborating Agency reports [20].

Cost included average cost per patient and cost per day (per diem) for joint disorders. Medical costs determined to be eligible for reimbursement by HIRA out of treatment costs were indicated in the submitted insurance claim statement. Medical costs, that is, the sum of benefits reimbursed by the insurer (Korean National Health Insurance Service) to the medical care institutions, were classified as INSUP and self-payment costs paid by the beneficiary (patient) as SLF. It was expressed as total treatment cost in Korean Won (1,000,000 KRW). Each patient's medical costs were calculated as the sum of costs listed on their claims. The average treatment amount was the amount of total medical expenses for one year divided by the number of patients. Per diem was the amount of total medical expenses for one year divided by the number of days of hospitalization or in an outpatient clinic.

The number of reimbursed days included the number of hospitalized days or outpatient visits and in-care drug prescription days. These days were defined based on the number of visits (for outpatient departments) or the length of hospital stay (for inpatient departments) of patients indicated in the submitted insurance claim statement [14]. Days per episode were calculated as total reimbursed days divided by the total number of episodes. Patient and medical institution-related characteristics are defined as follows.

2.5. Patient Characteristics

Patient characteristics included gender, age, medical insurance type, severity of disease, existence of surgery, and type of medicine. The main attending hospital characteristics included hospital type, region, ownership, the number of beds, the number of Western doctors, and the number of traditional medical practitioners. Patient demographic data obtained from the NHI claims database included gender, age, and medical insurance type (NHI, Medicaid, and others) at the date of visit of a health care institution and the most frequently visited ones. Individuals were qualified for Medicaid if they had a household income of less than $600 per month. Medical services for veterans and beneficiaries were free of charge as government expenditure. Severity was measured using the Charlson Comorbidity Index (CCI) [21] defined as the sum of weights related to each condition for which a patient had available claim data. The CCI score was determined based on the presence of specific ICD-10 codes during one year [22]. In this study, CCI at initiation was used as the CCI score of each patient.

2.6. Medical Institution Characteristics

The types of medical practice were divided into three as follows: traditional, Western, and both traditional and Western. Hospital was the main attending medical institution which was visited most frequently by the patient for care. If visit frequency per institution was the same, the main attending hospital was the last health care institution that the patient visited. Medical institutions included Tertiary and General Hospitals, hospitals, long-term care hospitals, Western Clinics, Dental Hospitals and Clinics, Public Health Hospitals (admission facility-equipped health center), Public Health Centers, Local Public Health Clinics, Traditional Hospitals, and Traditional Clinics. Region and ownership were the characteristics of the medical institution that the patient visited.

2.7. Statistical Analysis

Basic characteristics of the study sample are presented as frequencies and percentages. They are presented for each operational definition. Descriptive statistics are presented as type of care and hospital type. All statistical analyses were performed using SPSS version 21 for Windows (IBM Corp., Armonk, NY, USA).

3. Results

The general characteristics of the study population are summarized in Table 1.

Table 1.

General characteristics of patients and hospitals.

Category 2011 2012 2013 2014 Total
N (%) N (%) N (%) N (%) N (%)
Patient total 268,048 (100) 273,752 (100) 278,170 (100) 280,048 (100) 1,100,018 (100.0)
Gender
 Male 111,101 (41.4) 113,592 (41.5) 115,219 (41.4) 116,730 (41.7) 456,642 (41.5)
 Female 156,947 (58.6) 160,160 (58.5) 162,951 (58.6) 163,318 (58.3) 643,376 (58.5)
Age (yr)
 ≦29 64,226 (24.0) 64,564 (23.6) 63,712 (22.9) 63,696 (22.7) 256,198 (23.3)
 30–39 27,303 (10.2) 27,272 (10.0) 27,047 (9.7) 27,176 (9.7) 108,798 (9.9)
 40–49 42,286 (15.8) 41,452 (15.1) 41,118 (14.8) 40,898 (14.6) 165,754 (15.1)
 50–59 53,565 (20.0) 56,005 (20.5) 58,252 (20.9) 58,201 (20.8) 226,023 (20.5)
 60–69 44,704 (16.7) 46,016 (16.8) 46,949 (16.9) 47,162 (16.8) 184,831 (16.8)
 70–79 35,964 (13.4) 38,443 (14.0) 41,092 (14.8) 42,915 (15.3) 158,414 (14.4)
Medical insurance type
 National Health Insurance 255,160 (95.2) 261,381 (95.5) 266,015 (95.6) 268,135 (95.7) 1,050,691 (95.5)
 Medicaid 12,828 (4.8) 12,298 (4.5) 12,069 (4.3) 11,817 (4.2) 49,012 (4.5)
 Others 60 (.0) 73 (.0) 86 (.0) 96 (.0) 315 (.0)
Lesion of joint
 M17 141,148 (52.6) 143,697 (52.4) 145,346 (52.3) 147,274 (52.6) 577,465 (52.5)
 M75& 16,677 (6.2) 16,401 (6.0) 17,223 (6.2) 16,858 (6.0) 67,159 (6.1)
 S63 46,659 (17.4) 47,900 (17.5) 48,776 (17.6) 49,269 (17.6) 192,604 (17.5)
 S93 63,564 (23.7) 65,754 (24.0) 66,825 (24.0) 66,647 (23.8) 262,790 (23.9)
Severity (CCI)
 0 157,575 (74.4) 154,798 (74.4) 151,540 (74.3) 115,851 (58.4) 579,764 (70.5)
 1 37,600 (17.7) 37,236 (17.9) 36,331 (17.8) 49,180 (24.8) 160,347 (19.5)
 2 11,630 (5.5) 11,245 (5.4) 11,097 (5.4) 21,684 (10.9) 55,656 (6.8)
 3+ 5,041 (2.4) 4,792 (2.3) 4,874 (2.4) 11,556 (5.8) 26,263 (3.2)
Surgery
 No 264,211 (98.6) 269,325 (98.4) 273,412 (98.3) 275,029 (98.2) 1,081,977 (98.4)
 Yes 3,837 (1.4) 4,427 (1.6) 4,758 (1.7) 5,019 (1.8) 18,041 (1.6)
Patient total 268,048 (100.0) 273,752 (100.0) 278,170 (100.0) 280,048 (100.0) 1,100,018 (100.0)
Type of medicine
 Traditional 64,453 (24.1) 63,426 (23.2) 63,234 (22.7) 61,159 (21.8) 252,272 (22.9)
 Both 40,901 (15.3) 40,824 (14.9) 41,482 (14.9) 40,793 (14.6) 164,000 (14.9)
 Western 162,550 (60.7) 169,502 (61.9) 173,454 (62.4) 178,096 (63.6) 683,602 (62.2)
Hospital type§
 Tertiary and General Hospital 13,100 (4.9) 14,125 (5.2) 14,911 (5.4) 16,109 (5.8) 58,245 (5.3)
 Hospital 25,672 (9.6) 29,657 (10.8) 30,968 (11.1) 32,111 (11.5) 118,408 (10.8)
 Western Clinic 1,912 (.7) 2,138 (.8) 2,268 (.8) 2,320 (.8) 8,638 (.8)
 Long-term care hospital 145,278 (54.2) 146,694 (53.6) 149,037 (53.6) 151,146 (54.0) 592,155 (53.8)
 Traditional Hospital 1,631 (.6) 1,631 (.6) 1,628 (.6) 1,583 (.6) 6,473 (.6)
 Traditional Clinic 80,423 (30.0) 79,507 (29.0) 79,357 (28.5) 76,779 (27.4) 316,066 (28.7)
Region
 Seoul (Urban) 52,548 (19.6) 53,682 (19.6) 54,538 (19.6) 54,907 (19.6) 215,675 (19.6)
 Metropolitan city 68,101 (25.4) 70,626 (25.8) 72,117 (25.9) 72,436 (25.9) 283,280 (25.8)
 Other (Rural) 147,399 (55.0) 149,444 (54.6) 151,515 (54.5) 152,705 (54.5) 601,063 (54.6)
Ownership
 Public 1,894 (.7) 1,916 (.7) 2,018 (.7) 2,120 (.8) 7,948 (.7)
 Corporation 20,395 (7.6) 22,750 (8.3) 23,386 (8.4) 24,272 (8.7) 90,803 (8.3)
 Private 245,726 (91.7) 249,084 (91.0) 252,765 (90.9) 253,654 (90.6) 1,001,229 (91.0)
Number of beds
 ≦5 254,565 (95.0) 261,339 (95.5) 265,257 (95.4) 266,216 (95.1) 1,047,377 (95.2)
 6–12 8,455 (3.2) 7,626 (2.8) 7,959 (2.9) 8,635 (3.1) 32,675 (3.0)
 13–17 2,195 (.8) 2,444 (.9) 2,401 (.9) 2,542 (.9) 9,582 (.9)
 18≦ 2,820 (1.1) 2,343 (.9) 2,552 (.9) 2,655 (.9) 10,370 (.9)
Number of Western doctors per 100 beds
 ≦4 172,528 (64.4) 257,710 (94.3) 260,076 (93.7) 260,036 (93.0) 950,350 (86.5)
 5–11 70,428 (26.3) 11,177 (4.1) 12,686 (4.6) 14,624 (5.2) 108,915 (9.9)
 12–19 13,829 (5.2) 2,055 (.8) 1,897 (.7) 2,451 (.9) 20,232 (1.8)
 20≦ 11,231 (4.2) 2,469 (.9) 2,976 (1.1) 2,474 (.9) 19,150 (1.7)
Number of traditional doctors per 100 beds
 0 262,580 (98.0) 270,211 (99.3) 274,766 (99.4) 276,741 (99.4) 1,084,298 (99.0)
 1≦ 5,436 (2.0) 1,796 (.7) 1,753 (.6) 1,686 (.6) 10,671 (1.0)

Medical insurance type divided into National Health Insurance, Medicaid, and others. Others include veterans and beneficiaries who receive care free of charge as a government expenditure. When one patient had multiple joint diseases, the most frequent disease is indicated. &A case involving one or more of the other three joint disorders which were included in this study. Severity was measured using the Charlson Comorbidity Index (CCI), defined as the sum of weights related to each condition for which a patient submitted claims. §Hospital type is the type of medical institution most frequently visited.

A total of 1,100,018 patients were included, including 456,642 (41.5%) males and 643,376 (58.5%) females. All four years (from 2011 to 2014) showed higher percentages of females than males. Patients under 29 years of age accounted for the largest proportion (23.3%), followed by patients in their 50s (20.5%) and 60s (16.8%). A total of 1,050,691 (95.5%) patients were enrolled in the NHI scheme while the remaining 49,012 patients (4.5%) were enrolled in Medicaid. Patients with knee arthrodesis accounted for the most (24.2%), followed by those with foot joint disease. More than half (52.5%) of these patients had knee arthropathy. Approximately 70% (70.5%) of patients had mild joint disorder with CCI score of 0. Among the 1,100,018 patients, 18,041 (1.6%) patients underwent surgery while the majority (98.4%) of patients underwent nonsurgical procedures. For body regions where basic physical therapy was performed more than three times, the knee and shoulder regions accounted for more than 25%. For regions that needed surgery, the knees accounted for the most. For regions that underwent acupuncture two times or more, the shoulder, hand, and foot areas accounted for 30% or more (Table 2). Regardless of disease type, only 1.6% of patients underwent surgery, of which knee surgery was the most frequently performed type (43%~44%). The results of nonsurgical intervention distribution are shown in Table 3. The main attending medical institutions included 58,245 (5.3%) Tertiary and General Hospitals, 118,408 (10.8%) hospitals, 8,638 (0.8%) Western Clinics, 592,155 (53.8%) long-term care hospitals, 6,473 (29.6%) Traditional Hospitals, and (28.7%) Traditional Clinics. However, the results were different for hospitalization and outpatient visits (Table 4). Hospitalization was mainly in the order of hospitals > long-term care hospital > Western Clinic. This is mainly due to the characteristics of patients who require surgery. On the other hand, among the same primary clinic institutions, Traditional Clinics showed a higher proportion than Western Clinic for outpatients. The admission rates were 96.90% in Western medicine clinic and 3.10% in traditional Korean medicine clinics. Among all outpatient visits, 67.85% involved orthodox medicine while 32.15% involved traditional Korean medicine. In Western medicine clinics, patients were hospitalized most frequently in hospitals, followed by long-term care hospitals. Hospitalization at hospital level gradually decreased from 37.17% in 2011 to 36.37% in 2014. On the other hand, the percentage of patients who were hospitalized mainly in Traditional Hospitals increased from 2.12% in 2011 to 3.28% in 2014. Outpatient visits accounted for most visits to hospitals (Western medicine: 56.26%; Traditional Korean medicine: 31.69%). While the percentage of outpatients at Western medicine clinics steadily increased from 66.19% in 2011 to 68.93% by 2014, the percentage of outpatients at traditional Korean medicine clinics steadily decreased from 33.81% in 2011 to 31.07% in 2014. Most (91.0%) institutions were privately owned, and most (80.4%) of them were located outside Seoul. The majority (95.2%) of institutions had fewer than 5 beds. There was no significant difference among the four groups according to year. The total average treatment cost (RPE) is the sum of INSUP and SLF paid to medical care institution. RPE per patient was 185,933 KRW in 2011, 192,290 KRW in 2012, 202,967 KRW in 2013, and 208,739 KRW in 2014. Women incurred more medical expenses in 2011 to 2014 compared to men. Expenditure was increased with age. It peaked in patients in their 70s with a minimum of 377,448 KRW to a maximum of 388,445 KRW. In terms of expense by the type of joint lesion, knee lesions (M17) had the highest expense among the four types of joint disorders, followed by shoulder lesions (M75). As the severity of lesion was increased, the expense was also increased. However, the difference in expense was not statistically insignificant. Patients who were hospitalized spent 20 times more than those who were not hospitalized. The average treatment costs per patient in inpatient care and outpatient care were 192,414 and 65,319 KRW, respectively. Patients who used only traditional Korean medicine spent twice less than those who only used Western medicine. The range of RPE for Western medicine was from 181,225 KRW to 198,661 KRW. The range of RPE for traditional Korean medicine was from 82,019 KRW to 96,325 KRW. There were no differences in costs over 400,000 KRW among hospitals that practiced Western medicine (Tertiary and General Hospital, hospital, and Western Clinic). Costs for Western medicine hospitals were the highest, followed by that for Traditional Hospitals and long-term care hospitals (Table 5).

Table 2.

Distribution of nonsurgical intervention in both WM and traditional medicine according to the corporal name.

Nonsurgical intervention 2011 2012
Total M17 M75 S63 S93 Total M17 M75 S63 S93
Total
(N)
1,481,969 648,757 447,224 136,972 249,016 1,560,032 683,247 471,040 144,044 261,701

WM Basic physical therapy 0
N 947,982 377,024 293,443 101,240 176,275 1,000,863 410,595 298,619 106,230 185,419
 % (63.97) (58.11) (65.61) (73.91) (70.79) (64.16) (60.09) (63.40) (73.75) (70.85)
1
N 32,582 13,360 6,568 6,504 6,150 38,311 14,819 9,081 7,424 6,987
 % (2.20) (2.06) (1.47) (4.75) (2.47) (2.46) (2.17) (1.93) (5.15) (2.67)
2
N 136,773 77,169 33,618 7,892 18,094 137,871 72,622 38,010 8,468 18,771
 % (9.23) (11.89) (7.52) (5.76) (7.27) (8.84) (10.63) (8.07) (5.88) (7.17)
3≦
N 364,632 181,204 113,595 21,336 48,497 382,987 185,211 125,330 21,922 50,524
 % (24.60) (27.93) (25.40) (15.58) (19.48) (24.55) (27.11) (26.61) (15.22) (19.31)

WM Simple rehabilitation 0
N 1,475,271 647,748 446,473 132,184 248,866 1,551,724 681,736 469,564 139,023 261,401
 % (99.55) (99.84) (99.83) (96.50) (99.94) (99.47) (99.78) (99.69) (96.51) (99.89)
1≦
N 6,698 1,009 751 4,788 150 8,308 1,511 1,476 5,021 300
 % (.45) (.16) (.17) (3.50) (.06) (.53) (.22) (.31) (3.49) (.11)

WM Professional rehabilitation§ 0
N 1,481,873 648,725 447,185 136,949 249,014 1,560,008 683,235 471,031 144,041 261,701
 % (99.99) (100) (99.99) (99.98) (100) (100) (100) (100) (100) (100)
1≦
N 96 32 39 23 2 24 12 9 3
 % (.01) (.00) (.01) (.02) (.00) (.00) (.00) (.00) (.00) (.00)

WM Rehabilitation of CNS 0
N 1,481,962 648,751 447,223 136,972 249,016 1,560,029 683,244 471,040 144,044 261,701
 % (100) (100) (100) (100) (100) (100) (100) (100) (100) (100)
1≦
N 7 6 1 3 3
 % (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00)

TM Acupuncture 0
N 982,471 512,929 261,161 84,032 124,349 1,062,109 540,051 299,859 88,627 133,572
 % (66.29) (79.06) (58.40) (61.35) (49.94) (68.08) (79.04) (63.66) (61.53) (51.04)
1
N 40,678 12,784 14,083 4,402 9,409 44,984 15,421 14,765 4,728 10,070
 % (2.74) (1.97) (3.15) (3.21) (3.78) (2.88) (2.26) (3.13) (3.28) (3.85)
2≦
N 458,820 123,044 171,980 48,538 115,258 452,939 127,775 156,416 50,689 118,059
 % (30.96) (18.97) (38.46) (35.44) (46.29) (29.03) (18.70) (33.21) (35.19) (45.11)

TM Moxibustion 0
N 1,481,922 648,728 447,214 136,969 249,011 1,559,985 683,210 471,032 144,043 261,700
 % (100) (100) (100) (100) (100) (100) (100) (100) (100) (100)
1≦
N 47 29 10 3 5 47 37 8 1 1
 % (.00) (.00) (.00) (.00) (.00) (.00) (.01) (.00) (.00) (.00)

TM Cupping 0
N 1,481,712 648,669 447,115 136,964 248,964 1,559,844 683,132 470,982 144,040 261,690
 % (99.98) (99.99) (99.98) (99.99) (99.98) (99.99) (99.98) (99.99) (100) (100)
1≦
N 257 88 109 8 52 188 115 58 4 11
 % (.02) (.01) (.02) (.01) (.02) (.01) (.02) (.01) (.00) (.00)

TM Heat & cold therapy 0
N 1,481,856 648,712 447,194 136,964 248,986 1,559,985 683,225 471,027 144,042 261,691
 % (99.99) (99.99) (99.99) (99.99) (99.99) (100) (100) (100) (100) (100)
1≦
N 113 45 30 8 30 47 22 13 2 10
 % (.01) (.01) (.01) (.01) (.01) (.00) (.00) (.00) (.00) (.00)

Nonsurgical intervention 2013 2014
Total M17 M75 S63 S93 Total M17 M75 S63 S93
Total
(N)
1,594,949 698,540 475,765 150,621 270,023 1,600,774 706,617 468,443 152,359 273,355

WM Basic physical therapy 0
N 1,034,024 428,800 302,461 112,026 190,737 1,033,566 432,591 295,844 112,726 192,405
 % (64.83) (61.39) (63.57) (74.38) (70.64) (64.57) (61.22) (63.15) (73.99) (70.39)
1
N 46,856 21,507 10,255 7,147 7,947 45,063 18,589 10,106 7,624 8,744
 % (2.94) (3.08) (2.16) (4.75) (2.94) (2.82) (2.63) (2.16) (5.00) (3.20)
2
N 126,126 62,627 34,839 9,016 19,644 122,500 59,726 33,139 9,146 20,489
 % (7.91) (8.97) (7.32) (5.99) (7.27) (7.65) (8.45) (7.07) (6.00) (7.50)
3≦
N 387,943 185,606 128,210 22,432 51,695 399,645 195,711 129,354 22,863 51,717
 % (24.32) (26.57) (26.95) (14.89) (19.14) (24.97) (27.70) (27.61) (15.01) (18.92)

WM Simple rehabilitation 0
N 1,585,834 696,682 474,267 145,176 269,709 1,590,708 704,479 466,442 146,791 272,996
 % (99.43) (99.73) (99.69) (96.38) (99.88) (99.37) (99.70) (99.57) (96.35) (99.87)
1≦
N 9,115 1,858 1,498 5,445 314 10,066 2,138 2,001 5,568 359
 % (.57) (.27) (.31) (3.62) (.12) (.63) (.30) (.43) (3.65) (.13)

WM Professional rehabilitation§ 0
N 1,594,914 698,521 475,749 150,621 270,023 1,600,736 706,585 468,439 152,358 273,354
 % (100) (100) (100) (100) (100) (100) (100) (100) (100) (100)
1≦
N 35 19 16 38 32 4 1 1
 % (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00)

WM Rehabilitation of CNS 0
N 1,594,942 698,538 475,760 150,621 270,023 1,600,773 706,616 468,443 152,359 273,355
 % (100) (100) (100) (100) (100) (100) (100) (100) (100) (100)
1≦
N 7 2 5 1 1
 % (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00)

TM Acupuncture 0
N 1,085,224 549,587 307,484 89,800 138,353 1,102,972 559,982 309,311 92,009 141,670
 % (68.04) (78.68) (64.63) (59.62) (51.24) (68.90) (79.25) (66.03) (60.39) (51.83)
1
N 55,124 23,007 16,632 5,186 10,299 50,447 20,075 15,875 4,656 9,841
 % (3.46) (3.29) (3.50) (3.44) (3.81) (3.15) (2.84) (3.39) (3.06) (3.60)
2≦
N 454,601 125,946 151,649 55,635 121,371 447,355 126,560 143,257 55,694 121,844
 % (28.50) (18.03) (31.87) (36.94) (44.95) (27.95) (17.91) (30.58) (36.55) (44.57)

TM Moxibustion 0
N 1,594,876 698,484 475,756 150,619 270,017 1,600,667 706,522 468,436 152,359 273,350
 % (100.00) (99.99) (100) (100) (100) (99.99) (99.99) (100) (100) (100)
1≦
N 73 56 9 2 6 107 95 7 5
 % (.00) (.01) (.00) (.00) (.00) (.01) (.01) (.00) (.00) (.00)

TM Cupping 0
N 1,594,897 698,507 475,754 150,621 270,015 1,600,518 706,427 468,397 152,357 273,337
 % (100) (100) (100) (100) (100) (99.98) (99.97) (99.99) (100) (100)
1≦
N 52 33 11 8 256 190 46 2 18
 % (.00) (.00) (.00) (.00) (.00) (.02) (.03) (.01) (.00) (.01)

TM Heat & cold therapy 0
N 1,594,897 698,507 475,754 150,621 270,015 1,600,734 706,584 468,439 152,358 273,353
 % (100) (100) (100) (100) (100) (100) (100) (100) (100) (100)
1≦
N 52 33 11 8 40 33 4 1 2
 % (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00)

A patient could be hospitalized more than once during the study period, which resulted in more than one claim per patient. Thus, the number of claims in the study was higher than the number of patients. Basic physical therapy included superficial heat therapy, cold therapy, deep heat therapy, UV irradiation, transcutaneous electrical nerve stimulation, massage therapy, and simple therapeutic exercise. Simple rehabilitation included paraffin bath, hydrotherapy, intermittent traction therapy, electrical stimulation therapy, laser therapy, therapeutic exercise, motor point block, pneumatic compression, complex decongestive physical therapy, and iontophoresis. §Professional rehabilitation included pool therapy, occupational therapy, activities of daily living training, neurogenic bladder training, functional electrical stimulation therapy, myofascial trigger point injection, rehabilitative social work, rehabilitative breathing therapy, rehabilitative functional training, and rehabilitative dysphagia therapy. M17, knee lesions; M75, shoulder lesions; S63, wrist and hand level lesions; S93, ankle and foot level lesions; WM, Western medicine; TM, Korean traditional medicine.

Table 3.

Comparison of rate of surgery by diagnostic code.

Year Total Knee lesions [M17] Shoulder lesions [M75] Wrist and hand level [S63] Ankle and foot level [S93]
N % N % N % N % N %
Total Unit 1,481,969 100.00 648,757 43.78 447,224 30.18 136,972 9.24 249,016 16.80

2011 No N 1,477,896 646,826 445,926 136,436 248,708
% (99.73) (99.70) (99.71) (99.61) (99.88)
Yes N 4,073 1,931 1,298 536 308
% (.27) (.30) (.29) (.39) (.12)

Total Unit 1,560,032 100.00 683,247 43.80 471,040 30.19 144,044 9.23 261,701 16.78

2012 No N 1,555,319 681,193 469,334 143,450 261,342
% (99.70) (99.70) (99.64) (99.59) (99.86)
Yes N 4,713 2,054 1,706 594 359
% (.30) (.30) (.36) (.41) (.14)

Total Unit 1,594,949 100.00 698,540 43.80 475,765 29.83 150,621 9.44 270,023 16.93

2013 No N 1,589,924 696,372 473,895 150,072 269,585
% (99.68) (99.69) (99.61) (99.64) (99.84)
Yes N 5,025 2,168 1,870 549 438
% (.32) (.31) (.39) (.36) (.16)

Total Unit 1,600,774 100.00 706,617 44.14 468,443 29.26 152,359 9.52 273,355 17.08

2014 No N 1,595,458 704,410 466,431 151,772 272,845
% (99.67) (99.69) (99.57) (99.61) (99.81)
Yes N 5,316 2,207 2,012 587 510
% (.33) (.31) (.43) (.39) (.19)

A patient could be hospitalized more than once during the study period, which resulted in more than one claim per patient. Thus, the number of claims in the study was higher than the number of patients.

Table 4.

Number of hospitalizations and outpatient visits by type of medicine in 2011–2014.

Type of medicine Hospital type Unit 2011 2012 2013 2014 2011–2014
H O H O H O H O H O
WM Tertiary Hospital N 355 7,860 348 10,697 383 11,051 455 10,817 1,541 40,425
% 4.08 0.53 3.20 0.69 3.05 0.70 3.19 0.68 3.32 0.65
General Hospital N 1,123 29,569 1,263 46,307 1,543 47,052 1,677 52,028 5,606 174,956
% 12.92 2.01 11.61 2.99 12.29 2.97 11.74 3.28 12.08 2.83
Hospital N 3,232 62,241 4,061 127,047 4,493 131,644 5,193 136,668 16,979 457,600
% 37.17 4.23 37.32 8.20 35.79 8.32 36.37 8.62 36.58 7.39
Long-term care hospital N 2,491 3,778 3,504 8,461 4,237 8,142 4,925 8,247 15,157 28,628
% 28.65 0.26 32.20 0.55 33.75 0.51 34.49 0.52 32.66 0.46
Western Clinic N 1,296 867,535 1,383 858,553 1,493 874,403 1,508 881,056 5,680 3,481,547
% 14.91 58.92 12.71 55.45 11.89 55.29 10.56 55.56 12.24 56.26
Dental Hospital N 0 14 0 38 0 11 0 18 0 81
% 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Public Health Center N 0 1,845 0 2,159 0 2,441 0 2,865 0 9,310
% 0.00 0.13 0.00 0.14 0.00 0.15 0.00 0.18 0.00 0.15
Local Public Health Clinic N 0 442 0 487 0 245 0 236 0 1,410
% 0.00 0.03 0.00 0.03 0.00 0.02 0.00 0.01 0.00 0.02
Public Health Hospital N 2 1,253 1 1,151 3 946 1 1,060 7 4,410
% 0.02 0.09 0.01 0.07 0.02 0.06 0.01 0.07 0.02 0.07
Total N 8,499 974,537 10,560 1,054,900 12,152 1,075,935 13,759 1,092,995 44,970 4,198,367
% 97.75 66.19 97.05 68.13 96.79 68.03 96.35 68.93 96.90 67.85

TM Traditional Hospital N 184 4,035 286 7,932 366 7,680 469 8,818 1,305 28,465
% 2.12 0.27 2.63 0.51 2.92 0.49 3.28 0.56 2.81 0.46
Traditional Clinic N 12 493,842 35 485,603 37 497,972 52 483,833 136 1,961,250
% 0.14 33.54 0.32 31.36 0.29 31.49 0.36 30.51 0.29 31.69
Total N 196 497,877 321 493,535 403 505,652 521 492,651 1,441 1,989,715
% 2.25 33.81 2.95 31.87 3.21 31.97 3.65 31.07 3.10 32.15

Total N 8,695 1,472,414 10,881 1,548,435 12,555 1,581,587 14,280 1,585,646 46,411 6,188,082
% 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00

Patients with overlapping records were tallied as one patient (overlap was not allowed). H, hospitalization; O, outpatient; WM, Western medicine; TM, Korean traditional medicine.

Table 5.

Average treatment amount and benefit per patient by year.

Category 2011 2012 2013 2014
RPE INSUP SLF RPE INSUP SLF RPE INSUP SLF RPE INSUP SLF
Total 185,933 140,190 45,052 192,290 144,552 47,009 202,967 152,456 49,617 208,739 156,519 51,398
Gender
 Male 130,549 95,580 33,405 135,980 99,443 34,934 145,561 106,375 37,180 153,724 112,670 39,211
 Female 225,139 171,769 53,297 232,227 176,546 55,573 243,557 185,039 58,411 248,061 187,859 60,108
Age (yr)
 ≦29 72,576 50,798 21,766 75,827 53,013 22,798 80,484 56,216 24,252 86,426 60,587 25,825
 30–39 84,267 58,835 25,372 89,666 62,667 26,939 92,840 64,659 27,997 98,049 68,492 29,482
 40–49 121,156 86,493 34,503 127,488 91,277 36,107 134,378 96,345 37,875 141,772 101,542 40,027
 50–59 193,314 139,945 52,833 196,220 141,450 54,582 207,876 150,072 57,232 216,450 157,025 59,170
 60–69 309,243 236,773 70,029 311,086 237,807 70,698 321,981 245,078 73,736 322,749 244,490 75,304
 70–79 377,448 305,038 71,346 382,637 306,720 74,275 391,056 313,167 76,574 388,445 309,676 77,258
Medical insurance type
 NHI 180,246 132,778 46,862 187,175 137,685 48,839 198,249 146,009 51,511 204,759 150,730 53,296
 Medicaid 298,500 288,278 9,262 300,467 291,371 8,384 307,033 295,660 8,220 298,439 289,135 8,745
 Others 302,890 0 0 281,712 720 0 193,558 0 0 285,501 0 0
Lesion of joint
 M17 318,775 247,050 70,286 321,522 247,790 72,013 334,876 258,239 74,930 335,457 257,336 76,387
 M17& 214,173 161,693 51,469 228,679 172,504 55,286 246,375 185,404 59,464 250,494 188,780 60,578
 M75 273,798 204,867 68,361 287,629 215,195 71,603 299,415 223,468 75,254 322,791 240,597 81,185
 S63 59,589 41,837 17,681 60,432 42,435 17,970 62,989 44,297 18,650 67,402 47,452 19,899
 S63& 145,409 103,545 41,771 154,690 110,097 44,542 162,736 116,024 46,700 173,306 123,653 49,639
 S93 80,779 56,892 23,850 83,765 58,891 24,844 88,453 62,166 26,253 94,310 66,510 27,765
Severity (CCI)
 0 203,081 153,881 48,398 209,020 157,743 50,440 221,676 167,186 53,420 157,944 115,659 42,148
 1 199,087 150,625 47,563 211,708 159,868 50,817 223,060 168,461 53,604 273,424 207,024 65,595
 2 212,462 161,156 50,725 204,987 155,273 49,011 230,624 174,488 55,662 371,890 287,348 82,390
 3+ 204,016 154,551 48,973 247,400 188,624 57,910 244,925 186,833 57,180 470,263 368,719 93,844
Hospital admission
 No 120,367 88,290 31,661 121,813 89,057 32,334 126,287 92,267 33,586 131,932 96,429 35,035
 Yes 3,192,333 2,519,960 659,078 2,972,861 2,334,061 625,995 2,932,509 2,294,974 620,271 2,689,568 2,097,376 579,924
Inpatient visit
 1≦ 172,322 129,370 42,262 178,367 133,526 44,130 187,228 140,111 46,235 192,414 143,780 47,833
Outpatient visit
 1 61,372 44,201 16,944 58,572 42,469 15,878 61,113 44,077 16,623 65,319 47,296 17,866
 2-3 167,073 123,186 43,449 156,721 114,800 41,323 165,529 121,119 43,911 172,643 125,955 46,092
 4≦ 511,061 393,692 115,248 536,884 410,668 124,195 562,200 430,102 129,674 572,730 437,335 132,812
Type of medicine
 Traditional 82,019 61,845 20,154 86,266 65,161 21,076 90,827 68,827 21,979 96,325 73,323 22,966
 Both 368,924 280,760 87,644 382,499 290,307 91,415 410,128 310,688 97,825 421,279 318,877 101,784
 Western 181,225 135,985 44,240 186,151 139,155 46,017 194,305 145,102 48,164 198,661 147,900 49,621
Hospital type
 Tertiary and General Hospital 489,902 358,403 120,547 499,923 365,372 124,248 521,851 379,551 129,039 513,518 373,917 129,108
 Hospital 400,853 302,498 97,522 400,137 301,007 97,878 403,412 303,041 99,363 401,838 299,704 101,105
 Western Clinic 439,283 346,145 92,816 490,846 388,042 102,269 549,396 431,928 117,009 601,268 473,599 125,127
 Long-term care hospital 151,730 115,386 36,252 152,247 115,222 36,955 161,165 121,970 39,115 164,468 124,275 40,104
 Traditional Hospital 170,319 116,816 53,366 190,266 132,261 57,678 206,204 143,719 62,073 254,941 178,466 76,299
 Traditional Clinic 123,954 93,265 30,612 126,000 94,782 31,157 133,370 100,470 32,823 138,372 104,463 33,798
Region
 Seoul (Urban) 193,889 144,031 48,933 204,091 151,668 51,127 207,939 153,673 52,466 217,649 161,097 55,268
 Metropolitan city 206,956 156,123 49,511 205,397 154,325 49,914 222,903 167,268 54,395 224,130 168,026 54,704
 Other (Rural) 173,384 131,459 41,609 181,856 137,378 44,157 191,688 144,969 46,317 198,235 149,414 48,438
Ownership
 Private 356,865 272,144 78,988 502,172 389,016 108,319 458,967 355,555 96,233 446,919 343,020 100,664
 Corporation 399,808 296,961 96,104 395,387 293,375 95,243 414,433 306,100 100,105 428,235 315,244 105,371
 Public 166,882 126,175 40,558 171,357 129,080 42,132 181,359 136,620 44,574 185,744 139,770 45,822

The sum of INSUP and SLF paid to the medical care institution. The total costs of items determined to be eligible for reimbursement by the HIRA (Health Insurance Review and Assessment Service) out of the total treatment amount were indicated in the submitted insurance claim statement. INSUP: the cost reimbursed by the Korean National Health Insurance Service as the insurer. SLF: the self-payment amount paid by the beneficiary. &A case involving one or more of the other three joint disorders which were included in this study.

The frequency and total medical expenditures for Western medicine and traditional Korean medicine are shown in Table 6. There were 21,894,252 claims with a cost of 168,024,474 (1000 KRW) for Western medicine. However, there were only 9,628,946 claims with a cost of 38,602,696 (1000 KRW) for traditional Korean medicine. The medical expense per visit in an outpatient clinic was 22,000 KRW for Western medicine and about 18,000 KRW for traditional Korean medicine. The day per episode of traditional Korean medicine was longer than that of Western medicine. After analyzing the medical cost of claims for Western medicine and traditional Korean medicine, the proportion of each item was different. For Western medicine, the proportion of psychiatric costs was the highest (28.78%), followed by doctors' fees (27.7%), injections (16.59%), radiotherapy costs (8.74%), and laboratory costs (7.09%). For traditional Korean medicine, the proportion of doctors' fees was the highest (26.48%), followed by procedural costs (25.16%), injections (13.52%), admission costs (9.23%), and psychiatric costs (7.26%). Regarding traditional Korean medicine, most (70%) medical treatment costs were procedural costs and treatment costs. Doctors' fees accounted for only 21.54% of the total cost, similar to doctors' fees for Western medicine. Procedural costs accounted for the most (56.45%) among total cost for Western medicine. The second largest proportion was doctors' fees (40.49%). Admission costs, medication costs, and laboratory costs comprised less than 1% (Table 7).

Table 6.

Comparison of medical costs by type of medicine in 2011–2014.

Unit Year Type of medicine Frequency Insurance charge LOS
N % Cost % Per diem Days per episode§
H 2011 WM 8,499 97.75 16,542 99.37 162,276 10.98
TM 196 2.25 105 0.63 53,097 12.23
Total 8,695 100 16,647 100 159,815 11.01
2012 WM 10,560 97.05 18,063 99.03 157,605 9.67
TM 321 2.95 178 0.97 57,256 12.18
Total 10,881 100 18,240 100 154,644 9.75
2013 WM 12,152 96.79 19,969 98.65 155,222 9.31
TM 403 3.21 216 1.35 62,217 10.78
Total 12,555 100 20,185 100 152,237 9.35
2014 WM 13,759 96.35 20,077 98.65 154,829 8.51
TM 521 3.65 276 1.35 60,435 10.72
Total 14,280 100 20,353 100 151,385 8.59

O 2011 WM 974,537 66.19 23,827 71.81 22,030 1.2
TM 497,877 33.81 9,354 28.19 18,573 1.04
Total 1,472,414 100 33,181 100 20,861 1.15
2012 WM 1,054,900 68.13 24,848 72.24 23,555 1.12
TM 493,535 31.87 9,551 27.76 19,352 1.03
Total 1,548,435 100 34,399 100 22,215 1.09
2013 WM 1,075,935 68.03 26,203 72.24 24,354 1.11
TM 505,652 31.97 10,071 27.76 19,917 1.03
Total 1,581,587 100 36,274 100 22,935 1.08
2014 WM 1,092,995 68.93 27,887 73.19 25,514 1.1
TM 492,651 31.07 10,218 26.81 20,740 1.03
Total 1,585,646 100 38,104 100 24,031 1.08

A patient could be hospitalized more than once during the study period, which resulted in more than one claim per patient. Thus, the number of claims in the study was higher than the number of patients. Costs determined to be eligible for reimbursement by the HIRA (Health Insurance Review and Assessment Service) out of the total treatment amount were indicated in the submitted insurance claim statement. Costs are expressed in Korean Won (1,000,000 KRW). Per diem is the average daily cost of services covered by National Health Insurance. It is expressed in Korean Won. §Days per episode are the total number of reimbursed days divided by the total number of episodes. The number of reimbursed days includes the number of hospitalized days or outpatient visits and in-care drug prescription days. H, hospitalization; O, outpatient; WM, Western medicine; TM, Korean traditional medicine.

Table 7.

Comparison of subgroup costs by type of medicine (2011–2014).

Type Unit Doctors' fees Admission costs Medication costs Injection costs Anesthesia costs Physiotherapy costs Psychotherapy costs Procedural costs Laboratory costs Radiotherapy costs None Total
WM N 6,064,234 178,833 614,097 3,632,780 697,677 6,300,815 194 791,129 1,551,682 1,914,274 148,537 21,894,252
% 27.7 0.82 2.8 16.59 3.19 28.78 0 3.61 7.09 8.74 0.68 100
KRW 44,499,914 15,515,383 2,477,317 22,718,121 9,271,746 12,202,897 3,897 42,278,059 5,393,884 10,074,191 3,589,065 168,024,474
% 26.48 9.23 1.47 13.52 5.52 7.26 0 25.16 3.21 6 2.14 100

TM N 2,074,061 6,648 332,810 0 0 0 3 6,932,215 8,192 0 275,017 9,628,946
% 21.54 0.07 3.46 0 0 0 0 71.99 0.09 0 2.86 100
KRW 15,631,220 592,114 208,776 0 0 0 31 21,791,571 31,038 0 347,946 38,602,696
% 40.49 1.53 0.54 0 0 0 0 56.45 0.08 0 0.9 100

Total N 8,138,295 185,481 946,907 3,632,780 697,677 6,300,815 197 7,723,344 1,559,874 1,914,274 423,554 31,523,198
% 25.82 0.59 3 11.52 2.21 19.99 0 24.5 4.95 6.07 1.34 100
KRW 60,131,134 16,107,497 2,686,093 22,718,121 9,271,746 12,202,897 3,929 64,069,631 5,424,922 10,074,191 3,937,011 206,627,170
% 29.1 7.8 1.3 10.99 4.49 5.91 0 31.01 2.63 4.88 1.91 100

Costs determined to be eligible for reimbursement by the HIRA (Health Insurance Review and Assessment Service) out of the total treatment amount were indicated in the submitted insurance claim statement. They are expressed as Korean Won (1,000 KRW).

In Table 8, it was not possible to use the inspection and image capturing system of 0 only in the Traditional Clinic because of legal restrictions. According to the region of disease, the knee accounted for the most, followed by the shoulder, foot, and hand in terms of hospitalization and outpatient visits. As the years progressed, the number of inpatient and outpatient visits was also increased for all body regions. Among the hospitalized patients, the number of claims for all years after 2011 increased the most for shoulder joints (78.43%) compared to 2011, followed by knees (61.93%), foot (50.72%), and hands (16.29%). On the other hand, outpatient cases occurred in the following order based on the location of the disease: hand (11.24%) > knee (8.49%) > ankle (9.63%) > shoulder (4.35%). According to time (year), difference in current usage patterns was especially different between Western medicine and traditional Korean medicine. Particularly, hospitalization increases for the knee and shoulder areas (shoulder: 105.00%, knee: 250.00%) in traditional Korean medicine were higher than those in Western medicine (shoulder: 77.99%, knee: 58.04%). The proportion of outpatient visits for the hand region in traditional Korean medicine increased steadily (2012: 4.31%, 2013: 14.49%, 2014: 13.46%). However, the shoulder area showed steady decrease (2011: −8.31%, 2012: −9.73%, 2014: −16.45%) (Table 9).

Table 8.

Comparison of subgroup t related to type of medicine.

Type Hospital type Doctors' fees Admission costs Medication costs Procedural costs Anesthesia costs Psychotherapy costs Psychiatric costs Injection costs/procedural costs Laboratory costs Radiotherapy costs Total
TM Tertiary Hospital (11.96) (2.36) (6.43) (7.60) (2.34) (3.56) (.01) (15.63) (30.35) (19.76) (100)
General Hospital (17.14) (2.52) (9.43) (6.95) (1.87) (8.68) (.01) (15.35) (21.44) (16.61) (100)
Hospital (17.52) (2.44) (5.93) (6.24) (2.56) (14.34) (.00) (17.23) (19.82) (13.94) (100)
Long-term care hospital (23.67) (3.96) (3.39) (.76) (.87) (17.46) (.00) (44.73) (1.85) (3.31) (100)
Western Clinic (31.99) (.18) (1.29) (2.58) (3.54) (35.12) (.00) (16.82) (1.98) (6.50) (100)
Dental Hospital (17.57) (.00) (.42) (.00) (.00) (.00) (.00) (82.01) (.00) (.00) (100)
Public Health Center (.00) (.00) (.08) (1.48) (.00) (96.83) (.00) (.35) (1.21) (.03) (100)
Local Public Health Clinic (.00) (.00) (49.13) (.34) (.00) (47.29) (.00) (2.68) (.55) (.00) (100)
Public Health Hospital (35.19) (.20) (4.47) (2.06) (.16) (18.89) (.00) (29.61) (2.62) (6.79) (100)

WM Traditional Hospital (17.99) (3.57) (2.61) (.08) (.46) (1.44) (.00) (68.04) (4.17) (1.64) (100)
Traditional Clinic (21.61) (.01) (6.44) (.00) (.09) (.00) (.00) (71.86) (.00) (.00) (100)

Total (25.94) (.59) (3.89) (2.52) (2.25) (20.08) (.00) (33.67) (4.95) (6.10) (100)

WM, Western medicine; TM, Korean traditional medicine.

Table 9.

Comparison of lesion frequency by type of medical practice in 2011–2014.

Class Year Type Knee lesions [M17] Shoulder lesions [M75] Wrist and hand level [S63] Ankle and foot level [S93]
Growth N % Growth N % Growth N % Growth N %
H 2011 WM 5,024 97.97 2,399 98.36 216 97.74 860 94.82
TM 104 2.03 40 1.64 5 2.26 47 5.18
Total 5,128 100.00 2,439 100.00 221 100.00 907 100.00
2012 WM 25.72 6,316 96.74 27.97 3,070 97.90 −5.56 204 97.61 12.79 970 96.33
TM 104.81 213 3.26 65.00 66 2.10 0.00 5 2.39 −21.28 37 3.67
Total 27.32 6,529 100.00 28.58 3,136 100.00 −5.43 209 100.00 11.03 1,007 100.00
2013 WM 41.04 7,086 96.45 53.61 3,685 98.03 21.76 263 98.50 30.00 1,118 94.59
TM 150.96 261 3.55 85.00 74 1.97 −20.00 4 1.50 36.17 64 5.41
Total 43.27 7,347 100.00 54.12 3,759 100.00 20.81 267 100.00 30.32 1,182 100.00
2014 WM 58.04 7,940 95.62 77.99 4,270 98.12 17.13 253 98.44 50.70 1,296 94.81
TM 250.00 364 4.38 105.00 82 1.88 −20.00 4 1.56 51.06 71 5.19
Total 61.93 8,304 100.00 78.43 4,352 100.00 16.29 257 100.00 50.72 1,367 100.00

O 2011 WM 508,830 79.13 258,936 58.24 83,624 61.16 123,147 49.65
TM 134,181 20.87 185,699 41.76 53,106 38.84 124,891 50.35
Total 643,011 100.00 444,635 100.00 136,730 100.00 248,038 100.00
2012 WM 5.41 536,381 79.33 14.91 297,536 63.60 5.76 88,439 61.49 7.63 132,544 50.85
TM 4.18 139,790 20.67 −8.31 170,259 36.40 4.31 55,394 38.51 2.56 128,092 49.15
Total 5.16 676,171 100.00 5.21 467,795 100.00 5.19 143,833 100.00 5.08 260,636 100.00
2013 WM 7.14 545,161 78.94 17.50 304,245 64.47 7.08 89,546 59.56 11.24 136,983 50.96
TM 8.37 145,411 21.06 −9.73 167,639 35.53 14.49 60,801 40.44 5.53 131,801 49.04
Total 7.40 690,572 100.00 6.13 471,884 100.00 9.96 150,347 100.00 8.36 268,784 100.00
2014 WM 9.18 555,535 79.63 17.99 305,510 65.84 9.83 91,843 60.39 13.77 140,107 51.52
TM 5.90 142,092 20.37 −16.45 155,153 0.72 13.46 60,252 39.61 5.55 131,824 48.48
Total 8.49 697,627 100.00 4.35 463,993 100.00 11.24 152,095 100.00 9.63 271,931 100.00

Patients with overlapping records were tallied as one patient (overlap was not allowed). Growth rate compared to 2011. H, hospitalization; O, outpatient; WM, Western medicine; TM, traditional Korean medicine.

The costs and length of hospitalization by year are shown in Tables 1017. Basic physical therapy was the most common nonsurgical intervention in Western medicine while acupuncture was the most common nonsurgical intervention in traditional Korean medicine. Both procedures are steady treatments that require two or more treatments. The proportions of acupuncture and basic physical therapy are almost equal (Table 18).

Table 10.

Numbers of hospitalizations for gonarthrosis [M17] patients by hospital type.

Year Type of medicine Hospital type Frequency Hospitalization costs LOS
N % Cost % Per diem Days per episode§
2011 Western Tertiary Hospital 204 3.98 1,225 9.50 460,420 14.20
General Hospital 589 11.49 3,215 24.93 254,225 22.53
Hospital 1,689 32.94 7,044 54.62 225,222 17.68
Long-term care hospital 1,857 36.21 553 4.29 94,819 4.42
Western Clinic 683 13.32 794 6.16 81,749 13.64
Public Health Hospital 2 0.04 1 0.01 39,420 11.00
Total 5,024 97.97 12,832 99.50 170,393 12.66
Traditional Traditional Hospital 99 1.93 62 0.48 57,349 13.10
Traditional Clinic 5 0.10 2 0.02 33,235 13.80
Total 104 2.03 64 0.50 56,190 13.13
Total 5,128 100.00 12,896 100.00 168,077 12.67

2012 Western Tertiary Hospital 187 2.86 1,190 8.81 490,276 14.06
General Hospital 615 9.42 3,188 23.60 236,169 22.07
Hospital 2,011 30.80 7,435 55.05 212,520 15.80
Long-term care hospital 2,792 42.76 700 5.18 99,643 3.50
Western Clinic 710 10.87 868 6.42 78,343 13.69
Public Health Hospital 1 0.02 1 0.01 42,477 19.00
Total 6,316 96.74 13,383 99.08 158,039 10.69
Traditional Traditional Hospital 190 2.91 114 0.84 62,827 12.07
Traditional Clinic 23 0.35 11 0.08 33,646 15.57
Total 213 3.26 125 0.92 59,676 12.45
Total 6,529 100.00 13,507 100.00 154,830 10.74

2013 Western Tertiary Hospital 195 2.65 1,287 8.79 454,263 16.49
General Hospital 725 9.87 3,681 25.16 234,228 21.27
Hospital 1,997 27.18 7,678 52.49 215,432 16.46
Long-term care hospital 3,393 46.18 888 6.07 98,884 3.62
Western Clinic 774 10.53 939 6.42 84,784 12.97
Public Health Hospital 2 0.03 1 0.01 44,311 16.00
Total 7,086 96.45 14,474 98.95 153,802 10.42
Traditional Traditional Hospital 234 3.18 140 0.96 64,218 11.45
Traditional Clinic 27 0.37 14 0.10 42,487 13.56
Total 261 3.55 154 1.05 61,970 11.67
Total 7,347 100.00 14,628 100.00 150,539 10.47

2014 Western Tertiary Hospital 272 3.28 1,641 11.46 459,732 14.81
General Hospital 727 8.75 3,723 26.01 233,047 22.00
Hospital 2,152 25.92 6,911 48.29 205,374 14.52
Long-term care hospital 4,022 48.43 1,045 7.30 102,035 3.44
Western Clinic 766 9.22 783 5.47 75,945 13.00
Public Health Hospital 1 0.01 0 0.00 63,640 4.00
Total 7,940 95.62 14,103 98.54 151,771 9.46
Traditional Traditional Hospital 329 3.96 193 1.35 64,804 11.00
Traditional Clinic 35 0.42 16 0.11 38,910 13.77
Total 364 4.38 209 1.46 62,314 11.26
Total 8,304 100.00 14,312 100.00 147,849 9.54

Patients with overlapping records were tallied as one patient (overlap was not allowed). Costs determined to be eligible for reimbursement by the HIRA (Health Insurance Review and Assessment Service) out of the total treatment amount were indicated in the submitted insurance claim statement. They are expressed as means and are in Korean Won (1,000,000 KRW). Per diem is the average daily cost of services covered by National Health Insurance. §Days per episode are the total number of hospitalized days divided by the total number of hospitalizations.

Table 11.

Number of outpatients with gonarthrosis [M17] by hospital type.

Year Type of medicine Hospital type Frequency Outpatient costs LOS
N % Cost % Per diem Days per episode§
2011 Western Tertiary Hospital 3,771 0.59 199 1.35 39,490 1.76
General Hospital 13,999 2.18 689 4.69 32,279 6.26
Hospital 28,259 4.39 1,667 11.33 28,169 2.04
Long-term care hospital 1,872 0.29 95 0.65 15,504 3.51
Clinic 458,027 71.23 9,641 65.55 21,049 1.02
Public Health Center 1,495 0.23 5 0.04 3,474 1.00
Local Public Health Clinic 389 0.06 5 0.03 12,991 7.70
Public Health Hospital 1,018 0.16 27 0.18 26,723 1.67
Total 508,830 79.13 12,329 83.83 21,823 1.24
Traditional Traditional Hospital 1,022 0.16 49 0.33 16,099 2.81
Traditional Clinic 133,159 20.71 2,330 15.84 17,497 1.04
Total 134,181 20.87 2,379 16.17 17,486 1.05
Total 643,011 100.00 14,707 100.00 20,918 1.20

2012 Western Tertiary Hospital 4,817 0.71 215 1.42 44,547 1.55
General Hospital 20,949 3.10 720 4.76 34,367 4.58
Hospital 54,982 8.13 1,858 12.27 33,789 1.12
Long-term care hospital 4,519 0.67 99 0.66 22,003 1.42
Clinic 448,226 66.29 9,691 64.01 21,621 1.02
Public Health Center 1,592 0.00 6 0.00 3,811 1.01
Local Public Health Clinic 439 0.24 3 0.04 7,361 4.12
Public Health Hospital 855 0.06 26 0.02 30,431 1.46
Dental Hospital 2 0.13 0 0.17 24,970 1.00
Total 536,381 79.33 12,618 83.34 23,525 1.18
Traditional Traditional Hospital 2,332 0.34 50 0.33 21,369 1.16
Traditional Clinic 137,458 20.33 2,472 16.33 17,986 1.03
Total 139,790 20.67 2,522 16.66 18,042 1.03
Total 676,171 100.00 15,140 100.00 22,391 1.15

2013 Western Tertiary Hospital 4,949 0.72 218 1.37 44,048 1.57
General Hospital 21,512 3.12 783 4.92 36,416 4.20
Hospital 55,199 7.99 1,879 11.81 34,034 1.12
Long-term care hospital 4,780 0.69 104 0.66 21,854 1.49
Clinic 456,160 66.06 10,203 64.13 22,367 1.01
Public Health Center 1,678 0.24 6 0.04 3,442 1.05
Local Public Health Clinic 191 0.03 2 0.02 12,633 6.90
Public Health Hospital 692 0.10 23 0.15 33,579 1.97
Total 545,161 78.94 13,219 83.09 24,248 1.16
Traditional Traditional Hospital 2,306 0.33 52 0.32 22,375 1.13
Traditional Clinic 143,105 20.72 2,639 16.59 18,443 1.03
Total 145,411 21.06 2,691 16.91 18,505 1.03
Total 690,572 100.00 15,910 100.00 23,039 1.14

2014 Western Tertiary Hospital 5,377 0.77 243 1.43 45,133 1.24
General Hospital 22,999 3.30 856 5.06 37,234 3.85
Hospital 57,441 8.23 1,986 11.74 34,571 1.11
Long-term care hospital 4,748 0.68 106 0.63 22,320 1.48
Clinic 461,684 66.18 10,962 64.81 23,742 1.01
Public Health Center 2,372 0.00 8 0.00 3,298 1.00
Local Public Health Clinic 171 0.34 2 0.05 12,230 6.67
Public Health Hospital 732 0.02 21 0.01 28,470 1.31
Dental Hospital 11 0.10 0 0.12 18,469 1.00
Total 555,535 79.63 14,183 83.86 25,531 1.15
Traditional Traditional Hospital 2,516 0.36 59 0.35 23,541 1.13
Traditional Clinic 139,576 20.01 2,670 15.79 19,127 1.03
Total 142,092 20.37 2,729 16.14 19,205 1.03
Total 697,627 100.00 16,912 100.00 24,242 1.12

Patients with overlapping records were tallied as one patient (overlap was not allowed). Costs determined to be eligible for reimbursement by the HIRA (Health Insurance Review and Assessment Service) out of the total treatment amount were indicated in the submitted insurance claim statement. They is expressed as a mean and are in Korean Won (1,000,000 KRW). Per diem is the average daily cost of services covered by National Health Insurance. §Days per episode are the total number of outpatient visit days including drug prescription days divided by the total number of outpatient visits.

Table 12.

Number of hospitalizations for shoulder lesion [M75] patients by hospital type.

Year Type of medicine Hospital type Frequency Hospitalization costs LOS
N % Cost % Per diem Days per episode§
2011 Western Tertiary Hospital 135 5.54 278 9.55 377,378 6.08
General Hospital 381 15.62 765 26.31 210,523 12.83
Hospital 1,101 45.14 1,608 55.27 203,071 8.86
Long-term care hospital 589 24.15 69 2.37 94,749 1.45
Western Clinic 193 7.91 167 5.74 99,580 11.10
Total 2,399 98.36 2,886 99.24 179,142 7.69
Traditional Traditional Hospital 39 1.6 22 0.75 53203 14.26
Traditional Clinic 1 0.04 0 0.01 21440 14
Total 40 1.64 22 0.76 52409 14.25
Total 2,439 100.00 2,908 100.00 177,064 7.80

2012 Western Tertiary Hospital 142 4.53 318 8.32 374,833 6.37
General Hospital 468 14.92 989 25.85 208,846 12.43
Hospital 1,547 49.33 2,168 56.66 200,108 8.36
Long-term care hospital 661 21.08 75 1.96 98,519 1.25
Western Clinic 252 8.04 242 6.33 138,525 9.81
Total 3,070 97.90 3,792 99.13 182,594 7.48
Traditional Traditional Hospital 62 1.98 32 0.84 58,945 11.53
Traditional Clinic 4 0.13 1 0.03 31,056 14.25
Total 66 2.10 33 0.87 57,255 11.70
Total 3,136 100.00 3,826 100.00 179,956 7.57

2013 Western Tertiary Hospital 169 4.50 388 8.65 379,396 6.41
General Hospital 582 15.48 1,212 27.01 188,152 13.07
Hospital 1,920 51.08 2,524 56.27 193,851 7.58
Long-term care hospital 739 19.66 100 2.22 95,331 1.68
Western Clinic 274 7.29 223 4.97 156,193 8.29
Public Health Hospital 1 0.03 0 0.00 89,370 1.00
Total 3,685 98.03 4,446 99.12 178,875 7.26
Traditional Traditional Hospital 68 1.81 37 0.82 64,497 10.57
Traditional Clinic 6 0.16 3 0.06 40,844 14.17
Total 74 1.97 40 0.88 62,579 10.86
Total 3,759 100.00 4,485 100.00 176,585 7.33

2014 Western Tertiary Hospital 161 3.70 333 6.97 377,875 5.68
General Hospital 671 15.42 1,214 25.45 202,746 10.41
Hospital 2,298 52.80 2,773 58.12 188,633 6.86
Long-term care hospital 817 18.77 134 2.80 99,291 2.07
Western Clinic 323 7.42 276 5.79 164,902 8.50
Total 4,270 98.12 4,730 99.12 179,097 6.58
Traditional Traditional Hospital 76 1.75 39 0.83 60,405 10.09
Traditional Clinic 6 0.14 2 0.05 23,633 17.17
Total 82 1.88 42 0.88 57,714 10.61
Total 4,352 100.00 4,772 100.00 176,810 6.66

Patients with overlapping records were tallied as one patient (overlap not allowed). Costs determined to be eligible for reimbursement by the HIRA (Health Insurance Review and Assessment Service) out of the total treatment amount were indicated in the submitted insurance claim statement. They are expressed as means and are in Korean Won (1,000,000 KRW). Per diem is the average daily cost of services covered by National Health Insurance. §Days per episode are the total number of hospitalized days divided by the total number of hospitalizations.

Table 13.

Number of outpatients with shoulder lesions [M75] by hospital type.

Year Type of medicine Hospital type Frequency Outpatient costs LOS
N % Cost % Per diem Days per episode§
2011 Western Tertiary Hospital 3,279 0.74 147 1.55 29,079 2.14
General Hospital 8,754 1.97 420 4.42 26,730 4.09
Hospital 16,434 3.70 803 8.45 21,712 2.21
Long-term care hospital 1,120 0.25 47 0.50 16,906 2.84
Clinic 228,892 51.48 4,559 47.99 19,916 1.01
Dental Hospital 8 0.00 0 0.00 18,765 1.63
Public Health Center 301 0.07 1 0.01 3,204 1.00
Local Public Health Clinic 22 0.00 0 0.00 5,281 1.91
Public Health Hospital 126 0.03 3 0.03 23,603 1.25
Total 258,936 58.24 5,980 62.96 20,345 1.21
Traditional Traditional Hospital 1,327 0.30 62 0.66 17,637 2.58
Traditional Clinic 184,372 41.47 3,456 36.39 18,746 1.04
Total 185,699 41.76 3,519 37.04 18,738 1.05
Total 444,635 100.00 9,499 100.00 19,674 1.14

2012 Western Tertiary Hospital 4,805 1.03 150 1.54 31,203 1.33
General Hospital 16,148 3.45 418 4.29 25,911 2.07
Hospital 42,956 9.18 1,004 10.29 23,362 1.05
Long-term care hospital 2,372 0.51 52 0.53 21,931 1.40
Clinic 230,518 49.28 4,790 49.14 20,780 1.01
Dental Hospital 5 0.00 0 0.00 26,800 1.00
Public Health Center 552 0.12 2 0.02 3,290 1.00
Local Public Health Clinic 12 0.00 0 0.00 9,058 3.92
Public Health Hospital 168 0.04 4 0.04 22,856 3.33
Total 297,536 63.60 6,420 65.85 21,577 1.08
Traditional Traditional Hospital 2,348 0.50 52 0.53 22,053 1.31
Traditional Clinic 167,911 35.89 3,277 33.62 19,517 1.03
Total 170,259 36.40 3,329 34.15 19,552 1.04
Total 467,795 100.00 9,749 100.00 20,840 1.07

2013 Western Tertiary Hospital 5,053 1.07 167 1.63 33,032 1.29
General Hospital 15,611 3.31 434 4.26 27,831 2.06
Hospital 46,514 9.86 1,108 10.85 23,823 1.05
Long-term care hospital 2,105 0.45 49 0.48 23,288 1.45
Clinic 234,099 49.61 5,077 49.73 21,688 1.01
Dental Hospital 6 0.00 0 0.00 17,590 1.00
Public Health Center 701 0.15 2 0.02 2,487 1.00
Local Public Health Clinic 24 0.01 0 0.00 6,914 2.96
Public Health Hospital 132 0.03 3 0.03 25,864 1.74
Total 304,245 64.47 6,841 67.01 22,486 1.08
Traditional Traditional Hospital 2,163 0.46 51 0.50 23,727 1.09
Traditional Clinic 165,476 35.07 3,317 32.49 20,047 1.03
Total 167,639 35.53 3,369 32.99 20,095 1.03
Total 471,884 100.00 10,210 100.00 21,636 1.06

2014 Western Tertiary Hospital 4,474 0.96 149 1.42 33,281 1.34
General Hospital 17,733 3.82 502 4.79 28,320 2.11
Hospital 48,171 10.38 1,136 10.85 23,590 1.04
Long-term care hospital 2,106 0.45 50 0.47 23,507 1.36
Clinic 232,309 50.07 5,315 50.74 22,881 1.01
Public Health Center 471 0.10 2 0.02 3,848 1.37
Local Public Health Clinic 35 0.01 0 0.00 7,430 3.80
Public Health Hospital 211 0.05 6 0.06 28,187 1.34
Total 305,510 65.84 7,160 68.35 23,437 1.09
Traditional Traditional Hospital 3,330 33.44 73 30.96 21,781 1.03
Traditional Clinic 155,153 0.72 3,243 0.69 20,903 1.03
Total 158,483 34.16 3,316 31.65 20,921 1.03
Total 463,993 100.00 10,476 100.00 22,578 1.07

Patients with overlapping records were tallied as one patient (overlap was not allowed). Costs determined to be eligible for reimbursement by the HIRA (Health Insurance Review and Assessment Service) out of the total treatment amount were indicated in the submitted insurance claim statement. They are expressed as means and are in Korean Won (1,000,000 KRW). Per diem is the average daily cost of services covered by National Health Insurance. §Days per episode are the total number of outpatient visit days including drug prescription days divided by the total number of outpatient visits.

Table 14.

Number of hospitalizations for wrist and hand level lesions [S63] by hospital type.

Year Type of medicine Hospital type Frequency Hospitalization costs LOS
N % Cost % Per diem Days per episode§
2011 Western Tertiary Hospital 11 4.98 13 7.68 278,227 5.45
General Hospital 45 20.36 43 25.65 179,511 6.20
Hospital 97 43.89 74 44.40 139,886 6.36
Long-term care hospital 11 4.98 1 0.84 61,642 2.18
Western Clinic 52 23.53 34 20.56 82,895 9.83
Total 216 97.74 165 99.13 137,482 6.90
Traditional Traditional Hospital 4 1.81 1 0.59 50,891 4.75
Traditional Clinic 1 0.45 0 0.28 32,616 14.00
Total 5 2.26 1 0.87 47,236 6.60
Total 221 100.00 166 100.00 135,440 6.90

2012 Western Tertiary Hospital 9 4.31 10 6.32 248,187 4.89
General Hospital 32 15.31 31 20.03 181,560 8.19
Hospital 112 53.59 87 55.96 127,213 7.51
Long-term care hospital 13 6.22 1 0.83 99,160 1.00
Western Clinic 38 18.18 25 15.80 91,169 9.32
Total 204 97.61 154 98.93 132,573 7.42
Traditional Traditional Hospital 2 0.96 1 0.61 53,661 8.00
Traditional Clinic 3 1.44 1 0.46 41,900 7.33
Total 5 2.39 2 1.07 46,604 7.60
Total 209 100.00 156 100.00 130,517 7.43

2013 Western Tertiary Hospital 11 4.12 13 7.25 342,630 3.73
General Hospital 50 18.73 47 26.27 156,802 6.76
Hospital 111 41.57 85 46.85 130,977 6.95
Long-term care hospital 44 16.48 4 1.98 80,871 1.09
Western Clinic 47 17.60 30 16.67 88,549 10.30
Total 263 98.50 179 99.03 128,774 6.40
Traditional Traditional Hospital 4 1.50 2 0.97 53,481 8.00
Total 4 1.50 2 0.97 53,481 8.00
Total 267 100.00 180 100.00 127,646 6.42

2014 Western Tertiary Hospital 13 5.06 12 5.82 210,379 4.00
General Hospital 65 25.29 71 33.81 167,548 8.48
Hospital 118 45.91 97 46.30 137,949 6.69
Long-term care hospital 14 5.45 1 0.54 81,609 1.00
Western Clinic 43 16.73 27 12.62 88,134 8.91
Total 253 98.44 208 99.08 137,691 7.08
Traditional Traditional Hospital 3 1.17 1 0.59 64,672 8.00
Traditional Clinic 1 0.39 1 0.33 36,168 19.00
Total 4 1.56 2 0.92 57,546 10.75
Total 257 100.00 210 100.00 136,444 7.13

Patients with overlapping records were tallied as one patient (overlap was not allowed). Costs determined to be eligible for reimbursement by the HIRA (Health Insurance Review and Assessment Service) out of the total treatment amount were indicated in the submitted insurance claim statement. They are expressed as means and are in Korean Won (1,000,000 KRW). Per diem is the average daily cost of services covered by National Health Insurance. §Days per episode are the total number of hospitalized days divided by the total number of hospitalizations.

Table 15.

Number of outpatients for wrist and hand level lesions [S63] by hospital type.

Year Type of medicine Hospital type Frequency Outpatient costs LOS
N % Cost % Per diem Days per episode§
2011 Western Tertiary Hospital 251 0.18 19 0.60 58,745 1.58
General Hospital 2,612 1.91 155 4.95 44,742 1.62
Hospital 7,082 5.18 319 10.18 29,974 1.58
Long-term care hospital 321 0.23 12 0.37 18,678 1.99
Clinic 73,276 53.59 1,618 51.67 22,082 1.00
Public Health Center 39 0.03 0 0.01 5,699 1.00
Local Public Health Clinic 13 0.01 0 0.01 18,520 11.46
Public Health Hospital 30 0.02 1 0.02 18,767 1.23
Total 83,624 61.16 2,124 67.81 23,546 1.08
Traditional Traditional Hospital 545 0.40 21 0.68 18,048 2.18
Traditional Clinic 52,561 38.44 987 31.51 18,777 1.03
Total 53,106 38.84 1,008 32.19 18,770 1.04
Total 136,730 100.00 3,132 100.00 21,691 1.06

2012 Western Tertiary Hospital 306 0.21 16 0.48 51,987 1.36
General Hospital 3,404 2.37 146 4.41 42,810 1.19
Hospital 11,477 7.98 357 10.80 31,071 1.04
Long-term care hospital 667 0.46 13 0.40 19,954 1.10
Clinic 72,525 50.42 1,680 50.86 23,163 1.01
Public Health Center 1 0.00 0 0.00 5,790 1.00
Local Public Health Clinic 13 0.01 0 0.00 8,726 4.00
Public Health Hospital 46 0.03 1 0.04 29,252 1.43
Total 88,439 61.49 2,213 66.99 25,022 1.02
Traditional Traditional Hospital 838 0.58 18 0.53 20,947 1.05
Traditional Clinic 54,556 37.93 1,073 32.48 19,664 1.02
Total 55,394 38.51 1,090 33.01 19,683 1.02
Total 143,833 100.00 3,303 100.00 22,966 1.02

2013 Western Tertiary Hospital 297 0.20 19 0.54 65,123 1.40
General Hospital 3,512 2.34 163 4.58 46,354 1.19
Hospital 10,971 7.30 360 10.13 32,801 1.07
Long-term care hospital 484 0.32 10 0.28 20,811 1.07
Clinic 74,188 49.34 1,758 49.50 23,690 1.00
Public Health Center 34 0.00 0 0.00 3,086 1.00
Local Public Health Clinic 7 0.02 0 0.00 7,674 3.00
Public Health Hospital 52 0.00 1 0.00 24,083 1.23
Dental Hospital 1 0.03 0 0.04 24,540 1.00
Total 89,546 59.56 2,311 65.09 25,808 1.02
Traditional Traditional Hospital 956 0.64 22 0.62 22,855 1.05
Traditional Clinic 59,845 39.80 1,218 34.30 20,350 1.02
Total 60,801 40.44 1,240 34.91 20,390 1.02
Total 150,347 100.00 3,551 100.00 23,617 1.02

2014 Western Tertiary Hospital 332 0.22 21 0.57 63,661 1.34
General Hospital 3,886 2.55 180 4.80 46,221 1.44
Hospital 11,366 7.47 372 9.96 32,755 1.05
Long-term care hospital 646 0.42 14 0.38 21,995 1.20
Clinic 75,535 49.66 1,868 49.94 24,725 1.00
Public Health Center 10 0.00 0 0.00 4,050 1.00
Local Public Health Clinic 14 0.01 0 0.00 8,487 3.43
Public Health Hospital 50 0.01 1 0.00 24,903 1.18
Dental Hospital 4 0.03 0 0.03 19,768 1.00
Total 91,843 60.39 2,456 65.69 26,745 1.03
Traditional Traditional Hospital 892 0.59 20 0.55 22,893 1.08
Traditional Clinic 59,360 39.03 1,263 33.77 21,273 1.02
Total 60,252 39.61 1,283 34.31 21,297 1.02
Total 152,095 100.00 3,740 100.00 24,587 1.03

Patients with overlapping records were tallied as one patient (overlap was not allowed). Costs determined to be eligible for reimbursement by the HIRA (Health Insurance Review and Assessment Service) out of the total treatment amount were indicated in the submitted insurance claim statement. They are expressed as means and are in Korean Won (1,000,000 KRW). Per diem is the average daily cost of services covered by National Health Insurance. §Days per episode are the total number of outpatient visit days including drug prescription days divided by the total number of outpatient visits.

Table 16.

Number of hospitalizations for ankle and foot level lesions [S93] by hospital type.

Year Type of medicine Hospital type Frequency Hospitalization costs LOS
N % Cost % Per diem Days per episode§
2011 Western Tertiary Hospital 5 0.55 8 1.24 173,270 10.40
General Hospital 108 11.91 123 18.23 98,380 12.77
Hospital 345 38.04 280 41.41 84,468 10.59
Long-term care hospital 34 3.75 6 0.96 65,373 3.26
Western Clinic 368 40.57 241 35.54 56,559 12.45
Total 860 94.82 659 97.38 74,034 11.37
Traditional Traditional Hospital 42 4.63 17 2.47 49,012 9.38
Traditional Clinic 5 0.55 1 0.15 34,441 6.80
Total 47 5.18 18 2.62 47,462 9.11
Total 907 100.00 677 100.00 72,657 11.25

2012 Western Tertiary Hospital 10 0.99 12 1.61 193,439 6.00
General Hospital 148 14.70 156 20.70 108,791 11.49
Hospital 391 38.83 305 40.51 88,346 9.74
Long-term care hospital 38 3.77 12 1.61 82,398 5.34
Western Clinic 383 38.03 250 33.20 59,570 11.50
Total 970 96.33 734 97.63 80,954 10.49
Traditional Traditional Hospital 32 3.18 16 2.17 46,740 12.50
Traditional Clinic 5 0.50 2 0.20 32,100 9.80
Total 37 3.67 18 2.37 44,761 12.14
Total 1,007 100.00 752 100.00 79,624 10.55

2013 Western Tertiary Hospital 8 0.68 13 1.41 206,721 7.75
General Hospital 186 15.74 192 21.49 117,806 9.83
Hospital 465 39.34 390 43.78 104,115 8.94
Long-term care hospital 61 5.16 14 1.57 93,890 3.52
Western Clinic 398 33.67 262 29.42 64,569 11.39
Total 1,118 94.59 871 97.67 92,491 9.65
Traditional Traditional Hospital 60 5.08 20 2.23 66,044 6.93
Traditional Clinic 4 0.34 1 0.11 22,968 11.50
Total 64 5.41 21 2.33 63,352 7.22
Total 1,182 100.00 891 100.00 90,913 9.52

2014 Western Tertiary Hospital 9 0.66 10 0.92 200,250 6.00
General Hospital 214 15.65 234 22.08 127,396 10.31
Hospital 625 45.72 533 50.31 105,591 8.72
Long-term care hospital 72 5.27 24 2.27 92,879 5.67
Western Clinic 376 27.51 235 22.22 63,569 10.69
Total 1,296 94.81 1,036 97.81 96,951 9.36
Traditional Traditional Hospital 61 4.46 20 1.90 58,725 7.28
Traditional Clinic 10 0.73 3 0.29 25,945 12.80
Total 71 5.19 23 2.19 54,108 8.06
Total 1,367 100.00 1,059 100.00 94,726 9.30

Patients with overlapping records were tallied as one patient (overlap not allowed). Costs determined to be eligible for reimbursement by the HIRA (Health Insurance Review and Assessment Service) out of the total treatment amount were indicated in the submitted insurance claim statement. They are expressed as means and are in Korean Won (1,000,000 KRW). Per diem is the average daily cost of services covered by National Health Insurance. §Days per episode are the total number of hospitalized days divided by the total number of hospitalizations.

Table 17.

Number of outpatient visits for ankle and foot level lesions [S93] by hospital type.

Year Type of medicine Hospital type Frequency Outpatient costs LOS
N % Cost % Per diem Days per episode§
2011 Western Tertiary Hospital 559 0.23 46 0.79 71,456 1.84
General Hospital 4,204 1.69 285 4.88 54,910 1.60
Hospital 10,466 4.22 571 9.77 35,586 1.69
Long-term care hospital 465 0.19 18 0.31 23,088 1.90
Clinic 107,340 43.28 2,471 42.30 23,025 1.00
Dental Hospital 6 0.00 0 0.01 16,350 2.67
Public Health Center 10 0.00 0 0.00 3,012 1.00
Local Public Health Clinic 18 0.01 0 0.00 7,036 2.56
Public Health Hospital 79 0.03 2 0.04 31,605 1.52
Total 123,147 49.65 3,395 58.10 25,402 1.09
Traditional Traditional Hospital 1,141 0.46 45 0.78 18,915 2.03
Traditional Clinic 123,750 49.89 2,403 41.12 19,416 1.03
Total 124,891 50.35 2,448 41.90 19,412 1.04
Total 248,038 100.00 5,843 100.00 22,386 1.06

2012 Western Tertiary Hospital 769 0.30 50 0.80 64,899 1.51
General Hospital 5,806 2.23 310 5.00 53,426 1.27
Hospital 17,632 6.76 625 10.07 35,457 1.06
Long-term care hospital 903 0.35 19 0.31 21,587 1.12
Clinic 107,284 41.16 2,589 41.71 24,132 1.00
Dental Hospital 31 0.01 1 0.01 26,883 1.00
Public Health Center 14 0.01 0 0.00 4,871 1.00
Local Public Health Clinic 23 0.01 0 0.00 9,318 4.30
Public Health Hospital 82 0.03 3 0.04 31,415 1.39
Total 132,544 50.85 3,597 57.96 27,142 1.03
Traditional Traditional Hospital 2,414 0.93 54 0.86 22,190 1.06
Traditional Clinic 125,678 48.22 2,556 41.18 20,336 1.03
Total 128,092 49.15 2,609 42.04 20,371 1.03
Total 260,636 100.00 6,207 100.00 23,814 1.03

2013 Western Tertiary Hospital 752 0.28 50 0.76 66,703 1.68
General Hospital 6,417 2.39 357 5.40 55,586 1.22
Hospital 18,960 7.05 675 10.22 35,603 1.05
Long-term care hospital 773 0.29 17 0.25 21,454 1.10
Clinic 109,956 40.91 2,731 41.35 24,835 1.00
Dental Hospital 4 0.00 0 0.00 25,545 1.00
Public Health Center 28 0.01 0 0.00 2,908 1.00
Local Public Health Clinic 23 0.01 0 0.00 6,697 2.83
Public Health Hospital 70 0.03 2 0.03 30,855 1.23
Total 136,983 50.96 3,832 58.02 27,972 1.02
Traditional Traditional Hospital 2,255 0.84 52 0.79 23,228 1.05
Traditional Clinic 129,546 48.20 2,720 41.18 20,994 1.02
Total 131,801 49.04 2,772 41.98 21,032 1.02
Total 268,784 100.00 6,604 100.00 24,569 1.02

2014 Western Tertiary Hospital 634 0.23 53 0.76 83,468 1.66
General Hospital 7,410 2.72 415 5.95 56,052 1.27
Hospital 19,690 7.24 715 10.25 36,321 1.05
Long-term care hospital 747 0.27 17 0.25 23,249 1.08
Clinic 111,528 41.01 2,884 41.34 25,857 1.00
Dental Hospital 3 0.00 0 0.00 19,330 1.00
Public Health Center 12 0.00 0 0.00 4,125 1.00
Local Public Health Clinic 16 0.01 0 0.00 10,259 4.63
Public Health Hospital 67 0.02 2 0.03 28,492 1.03
Total 140,107 51.52 4,087 58.58 29,169 1.03
Traditional Traditional Hospital 2,080 0.76 51 0.73 24,517 1.04
Traditional Clinic 129,744 47.71 2,839 40.69 21,880 1.02
Total 131,824 48.48 2,890 41.42 21,922 1.02
Total 271,931 100.00 6,977 100.00 25,656 1.03

Patients with overlapping records were tallied as one patient (overlap not allowed). Costs determined to be eligible for reimbursement by the HIRA (Health Insurance Review and Assessment Service) out of the total treatment amount were indicated in the submitted insurance claim statement. They are expressed as means and are in Korean Won (1,000,000 KRW). Per diem is the average daily cost of services covered by National Health Insurance. §Days per episode are the total number of outpatient visit days including drug prescription days divided by the total number of outpatient visits.

Table 18.

Distribution of nonsurgical interventions in Western medicine and traditional Korean medicine.

Nonsurgical intervention Total Year 2011 2012 2013 2014
N 1,481,969 1,560,032 1,594,949 1,600,774
WM Basic physical therapy 0 N 947,982 1,000,863 1,034,024 1,033,566
% (63.97) (64.16) (64.83) (64.57)
1 N 32,582 38,311 46,856 45,063
% (2.20) (2.46) (2.94) (2.82)
2 N 136,773 137,871 126,126 122,500
% (9.23) (8.84) (7.91) (7.65)
3≦ N 364,632 382,987 387,943 399,645
% (24.60) (24.55) (24.32) (24.97)

WM Simple rehabilitation 0 N 1,475,271 1,551,724 1,585,834 1,590,708
% (99.55) (99.47) (99.43) (99.37)
1≦ N 6,698 8,308 9,115 10,066
% (.45) (.53) (.57) (.63)

WM Professional rehabilitation§ 0 N 1,481,873 1,560,008 1,594,914 1,600,736
% (99.99) (100.00) (100.00) (100.00)
1≦ N 96 24 35 38
% (.01) (.00) (.00) (.00)

WM Rehabilitation of CNS 0 N 1,481,962 1,560,029 1,594,942 1,600,773
% (100.00) (100.00) (100.00) (100.00)
1≦ N 7 3 7 1
% (.00) (.00) (.00) (.00)

TM Acupuncture 0 N 982,471 1,062,109 1,085,224 1,102,972
% (66.29) (68.08) (68.04) (68.90)
1 N 40,678 44,984 55,124 50,447
% (2.74) (2.88) (3.46) (3.15)
2≦ N 458,820 452,939 454,601 447,355
% (30.96) (29.03) (28.50) (27.95)

TM Moxibustion 0 N 1,481,922 1,559,985 1,594,876 1,600,667
% (100.00) (100.00) (100.00) (99.99)
1≦ N 47 47 73 107
% (.00) (.00) (.00) (.01)

TM Cupping 0 N 1,481,712 1,559,844 1,594,897 1,600,518
% (99.98) (99.99) (100.00) (99.98)
1≦ N 257 188 52 256
% (.02) (.01) (.00) (.02)

TM Heat & cold therapy 0 N 1,481,856 1,559,985 1,594,897 1,600,734
% (99.99) (100.00) (100.00) (100.00)
1≦ N 113 47 52 40
% (.01) (.00) (.00) (.00)

A patient could be hospitalized more than once during the study period, resulting in more than one claim per patient. Thus, the number of claims in the study was higher than the number of patients. Basic physical therapy included superficial heat therapy, cold therapy, deep heat therapy, ultraviolet irradiation, transcutaneous electrical nerve stimulation, massage therapy, and simple therapeutic exercise. Simple rehabilitation included paraffin bath, hydrotherapy, intermittent traction therapy, electrical stimulation therapy, laser therapy, therapeutic exercise, motor point block, pneumatic compression, complex decongestive physical therapy, and iontophoresis. §Professional rehabilitation included pool therapy, occupational therapy, activities of daily living training, neurogenic bladder training, functional electrical stimulation therapy, myofascial trigger point injection, rehabilitative social work, rehabilitative breathing therapy, rehabilitative functional training, and rehabilitative dysphagia therapy. WM, Western medicine; TM, traditional Korean medicine.

4. Discussion

This study assessed the prevalence and costs of most frequently used treatments for joint disorders in Korea to provide basic information for future usual care guidelines that may reduce health expenditures and help solve National Health Insurance deficits. This study used the 2011–2014 HIRA-NPS data consisting of 3% age-stratified and gender-stratified random samples. It appropriately reflected the South Korean population of 2011–2014 to capture real-world medical use and cost in joint disorders.

The results of the study showed that the proportion of female patients was higher compared to that of male patients. This is consistent with previous findings showing that women are more likely to utilize health care than men [23, 24]. This might be due to gender role differences such as occupation, hours of work, and occupational activities including housework and biological factors. Women are typically responsible for childcare and housework while men are typically expected to have a job [25].

The shoulder and knee joints accounted for the most hospital visits and increased steeply. In Korea, musculoskeletal disease accounted for 28.2% of National Health Insurance Corporation (NHIC) inpatient and outpatient claims. Knee joint disease has been ranked the 6th among reasons for inpatient care visit and the 5th among reasons for outpatient care visit among the population aged 65 years or older [26]. The incidence of gonarthrosis has been steadily increasing in Korea. Its rate in women was much higher than that in men [27].

While Western Clinics were the most frequently visited medical institution type between 2011 and 2014, the finding that Traditional Clinics were the next most frequently visited in this study was noteworthy. The Korean medical system is characterized by both Western and traditional Korean medical practices. In 2014, the number of claims from Western medicine was 49,031 for Tertiary and General Hospitals and 16,935 for hospitals and clinics. On the contrary, the number of claims from traditional Korean medicine was 14,729 for hospitals and 7,690 for clinics [26]. These circumstances reflect the high proportion of traditional Korean medicine use for joint disorders [9]. Our results are consistent with previous results showing that Traditional Clinics are the second most visited institution by patients with nonspecific low back pain [14].

Despite the high demand for traditional Korean medicine for musculoskeletal diseases, traditional Korean medical practitioners are precluded from diagnosing joint disorders independently due to regulatory restrictions in imaging device use. We confirmed this fact again by comparing subgroup costs related to the type of medicine in total treatment cost. Apart from procedures such as acupuncture, moxibustion, and cupping, many treatments were not covered by the NHI (Table 7). Large variations in diagnostic and therapeutic management between Western medicine and traditional Korean medicine indicate that more items in Korean medicine need to be covered and developed. Among the hospitalized patients, the number of claims for all years after 2011 increased mostly for shoulder joints (78.43%) compared to 2011, followed by knees (61.93%), foot (50.72%), and hands (16.29%). While the rate of use of traditional Korean medicine for the shoulder region slightly decreased in outpatient care, the number of hospitalizations increased sharply (Table 9). It is interesting that the proportion of traditional hospitalization increase for the knee and shoulder regions (shoulder: 105.00%, knee: 250.00%) was higher than that of Western medicine clinic hospitalization (shoulder: 77.99%, knee: 58.04%). In Korea, the medical delivery system of traditional medicine is not strict. Individuals can choose to visit primary medical institutions (Traditional Clinic) and higher medical institutions (Traditional Hospital). Shoulder and knee joint diseases are common musculoskeletal diseases. They are usually treated in primary care settings. However, if there is no response or a lack of effectiveness in primary care, a Traditional Hospital is attended for a more accurate diagnosis and evaluation. This might be the reason why there is increase in hospitalization in Traditional Hospitals that hire orthodox medical practitioners who can use X-rays and magnetic resonance imaging. Besides, because traditional medical practitioners cannot use these examination devices in a Traditional Clinic, outpatient care in Traditional Clinics was much lower compared to that in Western Clinics. Although simple radiology is helpful in the diagnosis of joint disease [28], patient might suffer the inconvenience of going to both Western and Traditional Clinics for accurate diagnosis due to legal restrictions [29].

Traditional Korean medicine had lower medical expenditures than Western medicine (inpatient care cost: Western medicine clinic, 160,000 KRW; traditional Korean medicine clinic, 50,000 KRW; outpatient care cost: Western medicine, 22,000 KRW; traditional Korean medicine, 18,000 KRW). The average treatment cost for traditional Korean medicine was lower compared to that for Western medicine. RPE ranged from 181,225 KRW to 198,661 KRW for Western medicine and 82,019 KRW to 96,325 KRW for traditional Korean medicine. In addition, out-of-pocket expenses for Western medicine (44,240 KRW to 49,621 KRW) were higher than those of traditional Korean medicine (20,154 KRW to 22966 KRW). Although expenditures for traditional Korean medicine were significantly lower compared to those for Western medicine, daily cost amount showed no significant difference between the two depending on the year. These results are similar to those of a previous study [6].

Most patients had mild joint diseases (more than 70%) with CCI scores of 0 and underwent nonsurgical treatment. Regardless of disease type, the proportion of surgery was less than 1%. Therefore, traditional medical care can serve as an alternative to Western medical care. We found that the proportion of acupuncture was slightly higher than basic physical therapy (Table 18). However, further research is needed to confirm that traditional Korean medicine is cost-effective for managing joint diseases.

This study has several limitations. First, the study was descriptive in nature. It reported sociodemographic characteristics, procedures, medication, and average cost for treating joint disorders without addressing a specific hypothesis. Recently, research results have been utilized as basis for policies by utilizing health-related big data. However, there is a lack of data analyzing various patterns of traditional medical services [30]. Although there are studies that use NHI claims data, they are limited to a single year or disease range [8, 13]. This study is novel in that it compared the utilization of Western medicine and traditional Korean medicine for the treatment of joint disorders in Korea. We believe the current study would serve as a good reference for countries with similar medical systems as that of Korea and would be able to contribute to international literature. Further research is required, such as analysis of factors influencing the use or frequency of Korean traditional medicine using multivariate statistics.

Second, while fee-for-service for nationally covered health care service was comprehensively recorded in the claim database, nonreimbursable items such as traditional drugs did not generate billing data. In addition, we only calculated direct medical costs based on information in the claim database. In general, there are nonmedical costs such as transportation costs and lost productivity due to morbidity because joint diseases tend to be chronic. In addition, the costs did not uncover items based on claims data that only contained information about medical services provided under the NHI. If uncovered items were included, the costs for traditional Korean medicine might be higher than that of Western medicine. In a previous study [31] comparing Western and traditional Korean medicine users, it was found that the traditional Korean medicine user group paid significantly more medical expenses than the Western medicine user group. In a study on the determinants of traditional Korean medicine use based on panel data [32], the number of patients using traditional Korean medicine was significantly higher than those using Western medicine. This is because the insurance benefit for traditional Korean medicine is lower than that for Western medicine.

Third, we did not include essential factors influencing choice of medical practice, such as education level, income, residence, severity, and health-related risk factors (e.g., alcohol consumption, smoking, and exercise) [33]. Previous studies have shown that factors affecting the use of traditional Korean medicine are not related to education level or income level [34, 35], high education level [14], low education level [36, 37], and low or high-income level [32]. In previous studies, factors such as the use of a therapist [33], confidence in oriental medical institution [32], recognition of therapeutic effect [38], and coping attitude of the oriental medical treatment [39] have been found to be significant factors. Although these essential variables are important parameters in choosing hospitals, they were missed due to the nature of the claims data. To overcome the omission of disturbance variables, medical insurance type (NHI or Medicaid) and region of hospital were used as surrogates of income and residence in this study. In addition, we considered disease severity by using CCI because severity of disease might greatly affect hospital choice. The remaining factors have been judged due to their impacts on health care utilization. We believe that the direction of the analysis of this study will not change. Due to the limitation in data characteristics, these elements were not included in this study. Future studies considering these factors are needed to confirm our findings.

Finally, the accuracy of diagnoses has been an issue due to the nature of claims data collected with the purpose of reimbursing health care services and not for clinical purposes [18]. The accuracy of diagnosis in the KNHI claims data has been reported to be about 70% [40]. Moreover, the accuracy of disease classification has been reported to be higher for inpatients than for outpatients. It is higher for severe disorders than for common mild disorders. It is also higher in General Hospitals than in clinics [41]. Nonetheless, in the process of designing this study, physicians in current practice concurred that these codes were not clearly differentiated for diagnosis in actual clinical practice settings in Korea. Therefore, analysis was performed in primary and secondary diagnoses in accordance with the opinion that various issues should be taken into account (e.g., private insurance, medical care institution characteristics, and individual differences in physicians) in category division. In addition, primary and secondary diagnoses are generally used in conjunction [14]. Therefore, in defining medical care usage due to joint disease, we reviewed not only the major diagnosis code, but also secondary diagnosis code. Despite our efforts, the diagnosis accuracy for joint diseases in this study might be challenged.

Despite these limitations, our study has several strengths. First, we analyzed age-stratified and gender-stratified random samples of the KNHI claims database representing 98% of the South Korean population. Claims statements covered extensive information on health care interventions (e.g., treatment, procedures, diagnostic tests, and prescription drugs), diagnosis, NHI payment cost, beneficiaries' out-of-pocket expenses, sociodemographic characteristics, and medical institutions, thus providing useful nationwide epidemiological data. Its representativeness, reliability, and validity have been confirmed previously [41]. However, there is a lack of data necessary to understand various consumption patterns and supply patterns of traditional medical services [30].

Second, there are studies in other countries that analyze the status of traditional Korean medicine utilization by using representative data source [30, 4244]. Unlike most previous clinical studies whose duration was less than one year, we attempted to analyze the change over four years for joint diseases based on the type of medicine used (Western or traditional Korean medicine). Until now, no studies have reported national data on the management of joint disorders for 2011 to 2014. This study holds significance in that it is the first study that reports distinct differences in patterns of medical care use and costs between Western medicine and traditional Korean medicine.

An added strength of this study was that it provided patterns of complementary and alternative medicine treatment for joint disorders in Korea by covering traditional Korean medicine treatments as acupuncture, moxibustion, and cupping in the NHI.

Third, we constructed pilot medical episode data considering characteristics of health claim data for joint diseases. This can be used as a data processing technique to calculate basic dynamics information. Health insurance claim data were produced by physicians based on diagnosis at the first visit to the hospital. Related claim data were then produced, including the diagnosis code, the date of initiation of treatment (hospitalization or outpatient), and personal information (age, sex). To use epidemiological data, it is necessary to link the billing statement classified for administrative purposes to the same hospitalization case [45]. In this study, the same patient filed a billing statement with the same hospital in the same medical institution for inpatient care. The date was connected to one hospitalization case.

Our study has several policy implications. As disease structure can change from acute to chronic degenerative disease, interest in traditional medicine is increasing with aging. The main purpose of traditional medicine use in South Korea is to prevent disease and promote general health [10]. Though traditional medicine plays a substantial role in the Korean health care system, the annual number of health insurance claims from traditional Korean medicine institutions has stagnated and decreased since 2012 [46]. Medical use is affected by demographic, socioeconomic, and psychocultural factors. It has been reported that these factors can affect health care utilization by interactions between factors rather than independent factors [47, 48]. Therefore, it is important to grasp the current position of traditional Korean medicine in order to prepare policy and directives. Currently, difference in standards of practice underlies mistrust for traditional Korean medicine among Western medical practitioners [6]. To overcome conflicts among orthodox and traditional practitioners, we need an effective health care delivery system that encourages consultation for both Western and traditional Korean medicine with accessibility. Further discussion must be considered by providing consultation programs for other chronic diseases and joint diseases.

5. Conclusions

This study provided objective information about epidemiologic characteristics of patients with joint disorders treated with Western medicine and traditional Korean medicine. It provided an understanding about the recent status and trends. It will provide a basis for further expansion of traditional Korean medicine for patients with muscular disorders. Based on HIRA data, medical use for joint disorders showed significant difference between the groups. It provides basic information for future usual care guidelines linked to health policy and budget appropriation. Timely and accurate information is essential for policy-makers to make decisions. The results of our study will contribute to management decisions for musculoskeletal diseases involving joint disorders.

Acknowledgments

This study was supported by Research Institute of Korean Medicine Policy.

Abbreviations

HIRA:

Health Insurance Review & Assessment Services

NHIS:

National Health Insurance Sample

WM:

Western medicine

TM:

Traditional Korean medicine.

Contributor Information

Boyoung Jung, Email: happiness630@hanmail.net.

Soyoon Kim, Email: syoonkim@yuhs.ac.

Additional Points

Availability of Data and Material. Datasets generated and/or analyzed in the current study are available from the HIRA-NPS repository. HIRA data are third-party data not owned by the authors. HIRA data are available upon visit or by mail upon direct, email, or fax submission of dataset request form and declaration of data use downloadable from the “HIRA” website: [http://opendata.hira.or.kr/op/opc/selectPatDataAplInfoView.do] and upon payment of the transfer of data request fee (300,000 KRW per dataset).

Ethical Approval

The HIRA Research Ethics Committee of South Korea approved the protocol of this study.

Disclosure

Written informed consent was not obtained from participants because only clinical records were used in this study based on national billing data submitted to HIRA. Patient information was anonymized and deidentified by HIRA prior to analysis in this study.

Conflicts of Interest

The authors declare that there are no conflicts of interest regarding the publication of this article.

Authors' Contributions

Soyoon Kim constructed study design, Sukjin Bae analyzed the data, and Boyoung Jung interpreted the results. Soyoon Kim was scientific advisor and directed this study. Boyoung Jung wrote the manuscript and performed the statistical analysis. All authors read and approved the final manuscript.

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