Table 2.
Characteristics of Study Patients and Those with 30-day Readmissions.
| Overall | Readmitted 30-day | Readmission rate | |
|---|---|---|---|
| N (%) | N (%) | % | |
| Age (Mean, SD) | 76.2±6.4 | 76.9±6.7 | |
| Gender | |||
| Male | 93,327 (42.3) | 9,160 (43.9) | 9. 8 |
| Female | 127,587 (57.8) | 11,727 (56.1) | 9.2 |
| Race | |||
| White | 198,466 (89.8) | 18,354 (87.9) | 9. 3 |
| Black | 9,536 (4.3) | 1,285 (6.2) | 13.5 |
| Others | 12,912 (5.8) | 1,248 (6.0) | 9.7 |
| Number of comorbidities | |||
| 0 | 24,336 (11.0) | 1,393 (6.7) | 5. 7 |
| 1 | 59,952 (27.1) | 4,191 (20.1) | 7.0 |
| 2-4 | 122,723 (55.6) | 12,606 (60.4) | 10.3 |
| 5 or more | 13,903 (6.3) | 2,697 (12.9) | 19.4 |
| Number of admissions within prior 180 days | |||
| 0 | 175,136 (79.3) | 14,117 (67.6) | 8. 1 |
| 1 | 32,051 (14.5) | 4,098 (19.6) | 12.8 |
| 2 or more | 51,766 (23.4) | 2,672 (12.8) | 19.5 |
| Length of Stay (days) | 4.8±4.9 | 6.8±6.7 | |
| Discharge Destination | |||
| Home/self-care | 106,281 (48.1) | 8,718 (41.7) | 8. 2 |
| Home with care service | 45,929 (20.8) | 4,082 (19.5) | 8.9 |
| Health care facilities | 68,704 (31.1) | 8,087 (38.7) | 11.8 |
| Surgical procedure | |||
| General | 60,687 (27.5) | 6,375 (30.5) | 10 .5 |
| Orthopedic | 108,461 (49.1) | 8,215 (39.3) | 7.6 |
| Vascular | 51,766 (23.4) | 6,297 (30.2) | 12.2 |
Note: This list of comorbidities was based on Elixhauser's comorbidity list. The diagnosis of comorbidities was based on the secondary diagnoses of index admission as well as both the primary and secondary diagnosis of any admission in 180 days prior to index admissions. The HCUP comorbidity software version 3.2 was used for analysis.