Table 2.
Patient Sociodemographics, Health Services Utilization Prior to Index Admission (IA), Characteristics of IA, Primary Diagnoses, Elixhauser Comorbidity Index, and Geographic Regions (n = 583,199)
| n (%) | |
|---|---|
| Age category | |
| 65–70 | 132,545 (22.7) |
| 71–75 | 113,286 (19.4) |
| 76–80 | 106,854 (18.3) |
| 81–85 | 99,183 (17.0) |
| 86–90 | 80,294 (13.8) |
| 91 or above | 51,037 (8.8) |
| Women | 336,832 (57.8) |
| Race/ethnicity | |
| Non-Hispanic white | 485,045 (83.2) |
| Black | 50,140 (8.6) |
| Hispanic | 29,208 (5.0) |
| Other | 18,806 (3.2) |
| Health services in 30 days prior to IA | |
| Institutional outpatient | 274,104 (47.0) |
| Office-based primary care physician | 306,110 (52.5) |
| Office-based specialist | 413,136 (70.8) |
| Office-based non-physician provider | 289,266 (49.6) |
| Emergency department | 135,837 (23.3) |
| Home health care | 33,831 (5.8) |
| Skilled nursing facility | 5767 (1.0) |
| IA weekend admission | 142,047 (24.4) |
| Surgical intervention during IA | 338,613 (58.1) |
| Length of stay category in IA | |
| 1 day | 75,890 (13.0) |
| 2 days | 111,008 (19.0) |
| 3 days | 128,902 (22.1) |
| 4–5 days | 131,637 (22.6) |
| 6–10 days | 102,066 (17.5) |
| 11 days or longer | 33,696 (5.8) |
| Discharge status in IA | |
| Home, self-care | 294,818 (50.6) |
| Home, with care | 113,334 (19.4) |
| Skilled nursing facility | 136,696 (23.4) |
| Rehabilitation | 33,616 (5.8) |
| Hospice | 4735 (0.8) |
| 20 most frequent diagnoses in IA | |
| All other diagnoses (reference) | 242,868 (41.6) |
| Osteoarthritis and allied disorders | 44,328 (7.6) |
| Septicemia | 33,343 (5.7) |
| Heart failure | 30,473 (5.2) |
| Cardiac dysrhythmias | 25,551 (4.4) |
| Pneumonia | 23,046 (4.0) |
| Chronic bronchitis | 17,185 (2.9) |
| Other disorders of urethra and urinary tract | 16,645 (2.9) |
| Acute myocardial infarction | 16,418 (2.8) |
| Fracture of neck of femur | 15,764 (2.7) |
| Acute renal failure | 15,156 (2.6) |
| Occlusion of cerebral arteries | 14,898 (2.6) |
| Complications peculiar to certain specified procedures | 12,579 (2.2) |
| Other forms of chronic ischemic heart disease | 12,205 (2.1) |
| Other cellulitis and abscess | 10,476 (1.8) |
| General symptoms | 9935 (1.7) |
| Intestinal obstruction without mention of hernia | 9602 (1.6) |
| Diverticula of intestine | 9427 (1.6) |
| Disorders of fluid, electrolyte, and acid-base balance | 8642 (1.5) |
| Other diseases of lung | 7780 (1.3) |
| Symptoms involving respiratory system and other chest | 6878 (1.2) |
| Elixhauser comorbidity index (mean (SD)) | 3.7 (2.1) |
| Dual eligibility for Medicare and Medicaid | 104,851 (18.0) |
| Participation in Medicare Part D | 396,019 (67.9) |
| Region | |
| Northeast | 118,898 (20.4) |
| Midwest | 135,885 (23.3) |
| South | 238,988 (41.0) |
| West | 89,428 (15.3) |