Characteristic | Total (n = 12,265, 100%) | Workhours (n = 8014, 65.3%) | Afterhours (n = 4251, 34.7%) | p value |
---|---|---|---|---|
Age, median (IQR) | 59 (46–70) | 60 (47–70) | 58 (44–70) | <.0001 |
Age category, n (%) | Â | Â | Â | 0.0022 |
 < 65 years | 7680 (62.6) | 4934 (61.6) | 2746 (64.6) |  |
 65–74 years | 2458 (20.1) | 1674 (20.9) | 784 (18.5) |  |
 75–84 years | 1696 (13.8) | 1132 (14.1) | 564 (13.3) |  |
 ≥ 85 years | 426 (3.5) | 270 (3.4) | 156 (3.7) |  |
Sex, n (%) | Â | Â | Â | 0.29 |
 Female | 5112 (41.7) | 3367 (42.0) | 1745 (41.1) |  |
 Male | 7150 (58.3) | 4644 (58.0) | 2506 (59.0) |  |
System, n (%) | Â | Â | Â | <.0001 |
 Cardiovascular | 2103 (17.3) | 696 (16.5) | 696 (16.5) |  |
 Gastrointestinal | 2044 (16.8) | 677 (16.0) | 677 (16.0) |  |
 Genitourinary | 449 (3.7) | 136 (3.2) | 136 (3.2) |  |
 Hematology | 65 (0.5) | 24 (0.6) | 24 (0.6) |  |
 Metabolic/endocrine | 246 (2.0) | 85 (2.0) | 85 (2.0) |  |
 Musculoskeletal/skin | 485 (4.0) | 144 (3.4) | 144 (3.4) |  |
 Neurologic | 1809 (14.9) | 679 (16.1) | 679 (16.1) |  |
 Respiratory | 3643 (29.9) | 1216 (28.8) | 1216 (28.8) |  |
 Transplant | 129 (1.1) | 52 (1.2) | 52 (1.2) |  |
 Trauma | 1211 (9.9) | 519 (12.3) | 519 (12.3) |  |
Surgery, n (%) | Â | Â | Â | <.0001 |
 Elective | 1209 (9.9) | 962 (12.0) | 247 (5.8) |  |
 Emergent | 2054 (16.8) | 1276 (15.9) | 778 (18.3) |  |
 Nonoperative | 9002 (73.4) | 5776 (72.1) | 3226 (75.9) |  |
Class, n (%) | Â | Â | Â | <.0001 |
 Medical | 7241 (59.0) | 4701 (58.7) | 2540 (59.8) |  |
 Neurological | 851 (6.9) | 501 (6.3) | 350 (8.2) |  |
 Surgical | 3101 (25.3) | 2203 (27.5) | 898 (21.1) |  |
 Trauma without head injury | 647 (5.3) | 379 (4.7) | 268 (6.3) |  |
 Trauma with head injury | 425 (3.5) | 230 (2.9) | 195 (4.6) |  |
Comorbidity disease, n (%) | ||||
 Chronic dialysis | 423 (3.5) | 273 (3.4) | 150 (3.5) | 0.72 |
 Hepatic | 1264 (10.3) | 817 (10.2) | 447 (10.5) | 0.58 |
 Neurologic | 5298 (43.2) | 3303 (41.2) | 1995 (46.9) | <.0001 |
 AIDS | 65 (0.5) | 42 (0.5) | 23 (0.5) | 0.90 |
 Chronic heart failure | 762 (6.2) | 512 (6.4) | 250 (5.9) | 0.27 |
 Respiratory | 1415 (11.5) | 942 (11.8) | 473 (11.1) | 0.30 |
 Metastatic/leukemia/lymphoma | 791 (6.5) | 543 (6.8) | 248 (5.8) | 0.043 |
 Immune suppression | 1095 (8.9) | 736 (9.2) | 359 (8.5) | 0.17 |
 Diabetes | 2280 (18.6) | 1535 (19.2) | 745 (17.5) | 0.027 |
 Cirrhosis | 785 (6.4) | 526 (6.6) | 259 (6.1) | 0.31 |
 Cardiovascular | 5752(46.9) | 3739 (46.7) | 2013 (47.4) | 0.47 |
 Digestive | 2210 (18.0) | 1449 (18.1) | 761 (17.9) | 0.80 |
 Acute renal | 2869 (23.4) | 1900 (23.7) | 969 (22.8) | 0.26 |
Charlson Index, median, (IQR) | 1 (0-2) | 1 (0-2) | 1 (0-2) | <.0001 |
Admission APACHE II score, mean (SD) | 20.2 (8.4) | 19.9 (8.3) | 20.9 (8.6) | <.0001 |