Table 1 Patient characteristics
Characteristic | Entire cohort, n = 23,625 |
|---|---|
Male (%) | 16,352 (69.2%) |
Age (years), mean ± SD | 60.6 ± 16.6 |
Self-reported ethnicity, n (%) | |
 White | 20,750 ((87.8%) |
 Mixed | 137 (0.6%) |
 Asian | 961 (4.1%) |
 Black | 458 (1.9%) |
 Other | 344 (1.5%) |
 Not stated | 975 (4.1%) |
Pre-admission dependency, n (%) | |
 Able to live without assistance | 18,716 (80.1%) |
 Some (minor/major) assistance with daily activities | 4454 (19.1%) |
 Total assistance with all daily activities | 183 (0.8%) |
Severe co-morbiditya, n (%) | |
 No | 21,469 (90.9%) |
 Yes | 2156 (9.1%) |
APACHE II Acute Physiology Score, mean ± SD | 14.3 ± 6.3 |
Primary diagnosis category, n (%) | |
 Sepsis | 998 (4.2%) |
 Acute coronary syndrome | 9166 (38.8%) |
 Cardiac arrhythmia | 9155 (38.8%) |
 Other | 4306 (18.2%) |
FiO2 (from ABG with lowest PaO2), median (IQR) (data missing on n = 1) | 0.35 (0.3–0.5) |
Central temperature (°C), mean ± SD | |
 Maximum temperature in first 24 h (data missing on n = 1) | 36.7 ± 1.3 °C |
 Minimum temperature in first 24 h (data missing on n = 1) | 34.0 ± 1.6 °C |
Glucose (mmol/L), mean ± SD | |
 Highest glucose in first 24 h (data missing on n = 1926)b | 12.0 ± 5.2 |
 Lowest glucose in first 24 h (data missing on n = 591) | 6.5 ± 2.5 |
Treatment withdrawal after 24 h (%) | |
 No | 14,820 (62.7%) |
 Yes | 8805 (37.3%) |
ICU outcome, n (%) | |
 Survived | 12,064 (51.1%) |
 Died | 11,561 (48.9%) |
ICU length of stay (days), median (IQR) | |
 All patients | 4.0 (2.4–7.1) |
 ICU survivors | 5.2 (3.0–9.9) |
 ICU non-survivors | 3.2 (1.9–5.1) |
Hospital outcome, n (%) | |
 Survived | 9649 (40.8%) |
 Died | 13,976 (59.1%) |
Hospital length of stay (days), median (IQR) | |
 All patients | 7 (3–17) |
 Hospital survivors | 19 (11–34) |
 Hospital non-survivors | 4 (2–7) |