Table 2.
Baseline characteristics of index hospitalizations
| Characteristics n (col %) or median (interquartile range) | Total n = 247,680 |
Potentially avoidable readmissiona (n = 59,045) |
No potentially avoidable readmissiona (n = 188,635) |
Standardized difference |
|---|---|---|---|---|
| LOS Index, d | 4.00 (2.00–7.00) | 4.00 (2.00–8.00) | 4.00 (2.00–7.00) | 0.13 |
| 0–4 | 134,360 (54.3) | 29,649 (50.2) | 104,711 (55.5) | 0.12 |
| >4–8 | 64,517 (26.1) | 15,837 (26.8) | 48,680 (25.8) | |
| >8 | 48,803 (19.7) | 13,559 (23.0) | 35,244 (18.7) | |
| Type of index hospitalization | 0.05 | |||
| Primary surgical | 61,477 (24.8) | 14,261 (24.2) | 47,216 (25.0) | |
| Primary medical | 186,203 (75.2) | 44,784 (75.8) | 141,419 (75.0) | |
| Without surgical procedure | 17,469 (9.4) | 3,680 (8.2) | 13,789 (9.8) | |
| With surgical procedure | 168,734 (90.6) | 41,104 (91.8) | 127,630 (90.3) |
LOS, length of stay; Q, quartile.
a
Percentages represent row percentage