Table 1.
Demographics of the study population (n = 424,635).
| Variable | n (%) |
|---|---|
| Age, mean ± SD | 49.42 ± 24.52 |
| Age, median (IQR) | 54 (35–67) |
| Charlson Comorbidity Index, mean ± SD | 1.72 ± 2.60 |
| Charlson Comorbidity Index, median (IQR) | 0 (0–2) |
| Male | 211,551 (49.8) |
| Main diagnosis | |
| Neoplasms | 98,104 (23.4) |
| Diseases of the circulatory system | 37,155 (8.9) |
| Diseases of the digestive system | 32,656 (7.8) |
| Diseases of the respiratory system | 27,931 (6.7) |
| Injury and poisoning | 25,991 (6.2) |
| Diseases of the genitourinary system | 24,187 (5.8) |
| Diseases of the musculoskeletal system and connective tissue | 19,638 (4.7) |
| Diseases of the nervous system and sense organs | 18,261 (4.4) |
| Complications of pregnancy, childbirth, and the puerperium | 17,288 (4.1) |
| Endocrine, nutritional and metabolic diseases, and immunity disorders | 8929 (2.1) |
| Symptoms, signs, and ill-defined conditions | 8640 (2.1) |
| Congenital anomalies | 7979 (1.9) |
| Diseases of the skin and subcutaneous tissue | 7962 (1.9) |
| Mental disorders | 4780 (1.1) |
| Diseases of the blood and blood-forming organs | 2727 (0.7) |
| Certain conditions originating in the perinatal period | 1786 (0.4) |
| Infectious and parasitic diseases | 1622 (0.4) |
| Supplementary Materials classification of factors influencing health status and contact with health services | 72,951 (17.4) |
| Department | |
| Surgery | 96,388 (22.7) |
| Internal Medicine | 93,120 (21.9) |
| Pediatrics | 47,218 (11.1) |
| Obstetrics & Gynecology | 38,683 (9.1) |
| Orthopedics | 28,217 (6.7) |
| Oncology | 26,975 (6.4) |
| Urology | 27,555 (6.5) |
| Otolaryngology | 17,603 (4.2) |
| Ophthalmology | 12,631 (3.0) |
| Traumatology | 8490 (2.0) |
| Family Medicine | 5826 (1.4) |
| Dentistry | 5188 (1.2) |
| Psychiatry | 4688 (1.1) |
| Neurology | 4582 (1.1) |
| Physical Medicine & Rehabilitation | 3680 (0.9) |
| Dermatology | 2741 (0.7) |
| Gerontology | 344 (0.1) |
| Others | 578 (0.1) |
| Cost *, mean ± SD | 3210 ± 7120 |
| Cost *, median (IQR) | 1479 (765–3122) |
| Length of stay, day, mean ± SD | 10.4 ± 22.8 |
| Length of stay, day, median (IQR) | 5 (3–10) |
* Converted to US dollars based on the exchange rate toward the end of 2015.