Table 1 Characteristics of adults admitted to ICU during weekday/daytime as compared to nights/weekends
Factor | Monday to Friday (n = 2,721) | 18:00-07:59 daily and anytime Saturday or Sunday (n = 4,659) | P-value |
|---|---|---|---|
Median (IQR) age years | 64 (52-76) | 62 (48-75) | < 0.0001 |
Male gender | 1073 (61%) | 1832/4665 (61%) | 0.92 |
Median (IQR) | 39 (27-56) | 41 (28-56) | 0.0106 |
SAPS II | |||
Admit DFLST status | 186 (7%) | 269 (6%) | 0.071 |
Median (IQR) pre-ICU LOS | 1 (0-3) | 0 (0-1) | <0.0001 |
>2 days admit prior | 990 (36%) | 1101 (24%) | <0.0001 |
Medical-surgery category | <0.001 | ||
Medical | 1967 (72%) | 3763 (81%) | |
Non-scheduled surgery | 287 (11%) | 585 (13%) | |
Scheduled surgery | 467 (17%) | 311 (7%) | |
Admitting surgery | <0.001 | ||
Other ICU | 153 (6%) | 262 (6%) | |
Other ward | 1364 (50%) | 1609 (35%) | |
Home | 22 (1%) | 52 (1%) | |
ER | 1100 (40%) | 2525 (54%) | |
Other | 82 (3%) | 211 (5%) | |
Ventilation | <0.001 | ||
None | 1143 (42%) | 2177 (47%) | |
Non-invasive | 274 (10%) | 428 (9%) | |
Endotracheal | 1304 (48%) | 2054 (44%) | |
Main diagnostic category | <0.001 | ||
Respiratory | 662 (24%) | 1082 (23%) | |
Cardiovascular | 375 (14%) | 692 (15%) | |
Neuromuscular | 330 (12%) | 694 (15%) | |
Gastrointestional | 344 (13%) | 648 (14%) | |
Other surgery | 405 (15%) | 310 (7%) | |
Renal, metabolic,toxic | 328 (8%) | 761 (16%) | |
Infectious | 227 (8%) | 403 (9%) | |
Other | 50 (2%) | 69 (1%) | |
Knaus co-morbidties | |||
hepatic | 176 (6%) | 300 (6%) | 0.96 |
cardiovascular | 339 (12%) | 631 (14%) | 0.19 |
respiratory | 363 (13%) | 590 (13%) | 0.41 |
renal | 173 (6%) | 299 (6%) | 0.96 |
immune | 409 (15%) | 700 (15%) | 1.00 |