Baseline characteristics of the study population according to the presence or absence of 30-day potentially avoidable readmission
| All discharges (n=117 065) | With 30-day PAR (n=11 307) | Without 30-day PAR (n=105 758) | |
|---|---|---|---|
| Age, years | 60.8 (18.2) | 61.3 (18.0) | 60.8 (18.3) |
| Men | 59 667 (51.0) | 5988 (53.0) | 53 679 (50.8) |
| Country | |||
| Canada | 11 041 (9.4) | 820 (7.3) | 10 221 (9.7) |
| Israel | 17 608 (14.0) | 1592 (14.1) | 16 016 (15.1) |
| Switzerland | 9465 (8.1) | 524 (4.6) | 8971 (8.5) |
| USA | 78 921 (67.4) | 8371 (74.0) | 70 550 (66.7) |
| Haemoglobin level at discharge <12 g/dL | 67 386 (57.6) | 8005 (70.8) | 59 381 (56,2) |
| Cancer diagnosis or discharge from an oncology division | 24 315 (20.8) | 2853 (25.2) | 21 462 (20.3) |
| Sodium level at discharge <135 mmol/l | 15 558 (13.3) | 2038 (18.0) | 13 520 (12.8) |
| Urgent or emergent index admission (non-elective) | 88 077 (75.2) | 9369 (82.9) | 78 708 (74.4) |
| Number of hospital admissions during the previous 12 months | |||
| 0–1 | 81 022 (69.2) | 4826 (42.7) | 76 196 (72.1) |
| 2–5 | 29 573 (25.2) | 4464 (39.5) | 25 109 (23.7) |
| >5 | 6470 (5.5) | 2017 (17.8) | 4453 (4.2) |
| Hospital stay ≥5 days during index admission | 51 710 (4.4) | 6058 (53.6) | 45 655 (43.2) |
Data are n (%) or mean (SD).
PAR, potentially avoidable readmission.