| Daytime hours (0800–1659) (n = 2656) | Nighttime hours (1700–0759) (n = 3367) | P value |
---|---|---|---|
Service, n (%) | < 0.001 | ||
Surgical services | 0.06 | ||
 General surgery | 285 (10.7) | 382 (11.4) |  |
 Orthopedic surgery | 240 (9.0) | 248 (7.4) |  |
 Vascular surgery | 116 (4.4) | 136 (4.0) |  |
 Neurosurgery | 85 (3.2) | 152 (4.5) |  |
 Thoracic surgery | 81 (3.1) | 103 (3.1) |  |
 Obstetrics and gynecology | 66 (2.5) | 73 (2.2) |  |
 Urology | 64 (2.4) | 82 (2.4) |  |
 Otolaryngology | 27 (1.0) | 42 (1.3) |  |
 Plastic surgery | 4 (0.2) | 9 (0.3) |  |
Nonsurgical Services | < 0.001 | ||
 General internal medicine | 715 (26.9) | 934 (27.7) |  |
 Hematology | 208 (7.8) | 197 (5.9) |  |
 Intensive care | 144 (5.4) | 140 (4.2) |  |
 Medical oncology | 112 (4.2) | 230 (6.8) |  |
 Family medicine | 103 (3.9) | 130 (3.9) |  |
 Nephrology | 92 (3.5) | 112 (3.3) |  |
 Radiation oncology | 83 (3.1) | 79 (2.4) |  |
 Neurology | 76 (2.9) | 96 (2.9) |  |
 Respirology | 52 (2.0) | 91 (2.7) |  |
 Psychiatry | 49 (1.8) | 53 (1.6) |  |
 Cardiology | 31 (1.2) | 48 (1.4) |  |
 Rehabilitation | 16 (0.6) | 19 (0.6) |  |
 Gastroenterology | 7 (0.3) | 11 (0.3) |  |