| Unadjusted OR | Adjusted OR | ||
---|---|---|---|---|
Covariates | OR | 95% CI | OR | 95% CI |
Male | 1.21 | 1.07–1.37 | 1.20 | 1.06–1.35 |
Age category | ||||
  < 55 | Reference | Reference | ||
 55–64 | 1.04 | 0.90–1.22 | 1.04 | 0.89–1.22 |
 65–74 | 1.10 | 0.94–1.29 | 1.08 | 0.91–1.28 |
  ≥ 75 | 1.48 | 1.21–1.82 | 1.45 | 1.16–1.80 |
APACHE II score > 20 | 1.05 | 0.92–1.20 | 1.05 | 0.89–1.23 |
SOFA score ≥ 10 | 1.14 | 1.01–1.28 | 1.18 | 1.02–1.37 |
Location before ICU admission | ||||
 Other | Reference | Reference | ||
 Emergency department | 1.11 | 0.96–1.27 | 1.09 | 0.95–1.26 |
 Operating or recovery room | 1.59 | 1.33–1.89 | 1.47 | 1.21–1.79 |
 Other ICU | 1.13 | 0.76–1.66 | 1.14 | 0.76–1.70 |
ICU admit diagnostic category | ||||
 Other | Reference | Reference | ||
 Infection | 0.83 | 0.66–1.04 | 0.79 | 0.62–1.00 |
 Gastrointestinal | 1.37 | 1.05–1.78 | 1.17 | 0.89–1.54 |
 Gastrointestinal bleeding | 2.43 | 1.42–4.15 | 2.59 | 1.50–4.46 |
 Sepsis | 1.19 | 0.91–1.57 | 1.17 | 0.88–1.56 |
 Cardiovascular | 1.38 | 1.04–1.83 | 1.31 | 0.98–1.75 |
 Hepatic-renal | 0.88 | 0.65–1.19 | 0.84 | 0.62–1.15 |
 Respiratory | 0.74 | 0.53–1.03 | 0.75 | 0.53–1.05 |
 Trauma | 2.01 | 1.42–2.84 | 1.88 | 1.31–2.69 |
 Pancreatic | 0.93 | 0.64–1.36 | 0.95 | 0.65–1.40 |
 Cancer | 0.92 | 0.53–1.59 | 0.73 | 0.42–1.29 |
 Orthopedic | 1.51 | 0.78–2.93 | 1.31 | 0.66–2.57 |
 Drug overdose | 1.54 | 0.65–3.63 | 1.63 | 0.69–3.89 |
Charlson comorbidity index | ||||
 0 | Reference | Reference | ||
 1 | 0.98 | 0.83–1.16 | 1.00 | 0.84–1.19 |
 ≥ 2 | 1.06 | 0.92–1.23 | 1.07 | 0.92–1.25 |
Mechanical ventilation | 1.06 | 0.87–1.29 | 1.06 | 0.86–1.31 |
Transfused overnight (between 19:00 and 7:00) | 0.71 | 0.63–0.80 | 0.69 | 0.61–0.78 |