Table 1.
Characteristics of the cohort
| Characteristic | Overall Cohort (N=11,177) | Hospitalization in Prior 6 mo | Standardized Difference (%) | |
|---|---|---|---|---|
| Yes (n=6075) | No (n=5102) | |||
| Demographic | ||||
| Age (yr), mean (SD) | 66.4 (15.1) | 66.3 (14.9) | 66.6 (15.4) | 2 |
| Women, n (%) | 4668 (41.8) | 2544 (41.9) | 2124 (41.6) | 1 |
| Place of residence before index hospitalization, n (%) | ||||
| Home | 10433 (93.3) | 5620 (92.5) | 4813 (94.3) | 7 |
| Rehabilitation facility | 115 (1.0) | a | a | a |
| Nursing home | 625 (5.6) | 338 (5.6) | 287 (5.6) | 0 |
| Complex continuing care | a | a | a | a |
| Healthcare utilization in prior 6 mo | ||||
| Number of emergency department visits, mean (SD) | 2.4 (2.4) | 3.0 (2.7) | 1.6 (1.6) | 64 |
| Clinical, n (%) | ||||
| Diabetes | 6931 (62.0) | 3884 (63.9) | 3047 (59.7) | 9 |
| Congestive heart failure | 6133 (54.9) | 3664 (60.3) | 2469 (48.4) | 24 |
| Coronary artery disease | 7598 (68.0) | 4351 (71.6) | 3247 (63.6) | 17 |
| Hypertension | 10168 (91.0) | 5627 (92.6) | 4541 (89.0) | 13 |
| Chronic obstructive pulmonary disease | 5272 (47.2) | 3092 (50.9) | 2180 (42.7) | 16 |
| Cerebrovascular disease | 888 (7.9) | 589 (9.7) | 299 (5.9) | 14 |
| Cancer | 283 (2.5) | 199 (3.3) | 84 (1.6) | 11 |
| Chronic liver disease | 1579 (14.1) | 965 (15.9) | 614 (12.0) | 11 |
| Peripheral vascular disease | 2126 (19.0) | 1255 (20.7) | 871 (17.1) | 9 |
| Charlson index, median (IQR) | 4 (2–6) | 5 (3–6) | 4 (2–5) | 50 |
| Time on dialysis (d), mean (SD) | 1164 (1555) | 1041 (1536) | 1311 (1565) | 17 |
| Hospital | ||||
| Teaching hospital, n (%) | 3894 (34.8) | 2127 (35.0) | 1767 (34.6) | 1 |
| Index admission | ||||
| Length of stay (d), median (IQR) | 5 (2–10) | 5 (2–11) | 5 (2–9) | 1 |
| Mechanical ventilation, n (%) | 514 (4.6) | 326 (5.4) | 188 (3.7) | 8 |
| Patient receiving in-center dialysis at index hospital, n (%) | 6645 (59.5) | 3528 (58.1) | 3117 (61.1) | 6 |
| Site of care after discharge, n (%) | ||||
| Home | 9338 (83.5) | 4960 (81.6) | 4378 (85.8) | 11 |
| Rehabilitation facility | 428 (3.8) | 248 (4.1) | 180 (3.5) | 3 |
| Nursing home | 766 (6.9) | 422 (7.0) | 344 (6.7) | 1 |
| Complex continuing care | 645 (5.8) | 445 (7.3) | 200 (3.9) | 15 |
a
Suppressed because of small cell count (<5).