All admissions | Age ≤45 yr | Age >45 yr | |
---|---|---|---|
(n =127,254) | (n =31,939) | (n =95,315) | |
Male sex | Reference | Reference | Reference |
Female sex | 1.03 (0.98 to 1.08) | 0.97 (0.80 to 1.18) | 1.03 (0.98 to 1.07) |
Comorbidityb | 1.07 (1.06 to 1.07) | 1.14 (1.11 to 1.18) | 1.06 (1.06 to 1.07) |
Age, per yr | 1.06 (1.05 to 1.06) | 1.03 (1.02 to 1.04) | 1.06 (1.06 to 1.06) |
Days in hospital prior to ICUc | 1.23 (1.20 to 1.26) | 1.25 (1.13 to 1.39) | 1.22 (1.19 to 1.26) |
Location prior to ICU admission | |||
Emergency room | Reference | Reference | Reference |
Other ICU | 1.15 (1.04 to 1.28) | 1.45 (0.97 to 2.15) | 1.14 (1.02 to 1.27) |
Operating theatre | 0.81 (0.72 to 0.92) | 0.99 (0.56 to 1.72) | 0.80 (0.71 to 0.91) |
Recovery room | 1.18 (0.87 to 1.60) | 0.82 (0.06 to 11.92) | 1.17 (0.86 to 1.59) |
High-dependency unit | 0.93 (0.77 to 1.11) | 0.60 (0.19 to 1.84) | 0.94 (0.78 to 1.13) |
Any other location | 1.18 (1.11 to 1.25) | 2.00 (1.54 to 2.62) | 1.14 (1.02 to 1.27) |
Therapy prior to ICU admissiond | 1.22 (1.14 to 1.32) | 1.85 (1.38 to 2.50) | 1.19 (1.10 to 1.28) |
Reasonss for ICU admission, per pointb | 1.07 (1.07 to 1.08) | 1.10 (1.07 to 1.12) | 1.07 (1.07 to 1.08) |
Planned admission | 0.91 (0.83 to 1.00) | 1.02 (0.66 to 1.57) | 0.91 (0.82 to 1.00) |
Surgical status | |||
Emergency surgery | Reference | Reference | Reference |
Elective surgery | 0.49 (0.43 to 0.55) | 0.57 (0.27 to 1.21) | 0.49 (0.43 to 0.55) |
No surgery | 1.35 (1.24 to 1.46) | 2.27 (1.52 to 3.41) | 1.32 (1.21 to 1.43) |
Presence of nosocomial infection | 1.07 (0.96 to 1.18) | 0.79 (0.50 to 1.24) | 1.08 (0.97 to 1.20) |
Presence of lower-airway infection | 0.75 (0.70 to 0.79) | 0.79 (0.60 to 1.03) | 0.75 (0.70 to 0.80) |
Physiologic derangement, per pointb | 1.10 (1.09 to 1.10) | 1.13 (1.12 to 1.14) | 1.09 (1.09 to 1.10) |
Tertiary care hospital | Reference | Reference | Reference |
District general hospital | 1.08 (1.02 to 1.14) | 0.80 (0.64 to 0.99) | 1.10 (1.04 to 1.17) |
Local hospital | 1.00 (0.93 to 1.07) | 0.62 (0.46 to 0.85) | 1.02 (0.96 to 1.10) |
Model fit | |||
c-statistic | 0.85 | 0.91 | 0.81 |
R 2 | 0.28 | 0.34 | 0.22 |