Table 1 Patient demographics
Characteristic | Total, n = 32,349 | Missing data |
|---|---|---|
Age (years), mean (SD) | 60.22 (16.60) | 0 |
Sex, n (%) | Â | 0 |
 Female | 9901 (30.6%) |  |
 Male | 22,448 (69.4%) |  |
Self-reported ethnicity, n (%) | Â | 1,541 (4.8%) |
 White | 28,132 (91.3%) |  |
 Mixed | 205 (0.7%) |  |
 Asian | 1371 (4.5%) |  |
 Black | 587 (1.9%) |  |
 Other | 513 (1.7%) |  |
Dependency prior to admission to acute hospital, n (%) | Â | 369 (1.1%) |
 Able to live without assistance | 25,867 (80.9%) |  |
 Minor assistance | 4571 (14.3%) |  |
 Major assistance | 1294 (4.0%) |  |
 Total assistance | 248 (0.8%) |  |
Severe comorbidity, n (%) | Â | 367(1.1%) |
 No | 29,356 (91.8%) |  |
 Yes | 2626 (8.2%) |  |
APACHE II Acute Physiology Score (excluding the MAP component), mean (SD) | 11.99 (6.11) | 284 (0.9%) |
Primary diagnosis category, n (%) | Â | 0 |
 Sepsis | 1279 (4.0%) |  |
 Acute coronary syndrome | 13,003 (40.2%) |  |
 Cardiac arrhythmia | 12,130 (37.5%) |  |
 Other | 5937 (18.4%) |  |
Year, n (%) | Â | 0 |
 2010 | 1846 (5.7%) |  |
 2011 | 2243 (6.9%) |  |
 2012 | 2568 (7.9%) |  |
 2013 | 2834 (8.8%) |  |
 2014 | 3113 (9.6%) |  |
 2015 | 3405 (10.5%) |  |
 2016 | 3616 (11.2%) |  |
 2017 | 3820 (11.8%) |  |
 2018 | 4326 (13.4%) |  |
 2019 | 4578 (14.2%) |  |
Highest serum glucose, mean (SD) | 11.72 (5.32) | 1210 (3.7%) |
Lowest serum glucose, mean (SD) | 6.49 (2.51) | 1210 (3.7%) |
Highest central temperature, mean (SD) | 36.74 (1.30) | 19 (0.1%) |
Lowest central temperature, mean (SD) | 34.14 (1.61) | 19 (0.1%) |
Received advanced cardiovascular support* | Â | 0 |
 No | 11,995 (37.1%) |  |
 Yes | 20,354 (62.9%) |  |
Treatment withheld/withdrawn, n (%) | Â | 0 |
 Neither | 20,350 (62.9%) |  |
 Withdrawn | 9162 (28.3%) |  |
 Withheld | 806 (2.5%) |  |
 Both withdrawn and withheld | 2031 (6.3%) |  |
ICU mortality, n (%) | Â | 0 |
 Alive | 17,608 (54.4%) |  |
 Dead | 14,741 (45.6%) |  |
ICU length of stay (days), median (IQR) | 3.83 (2.15–6.93) | 0 |
Hospital mortality, n (%) | Â | 106 (0.3%) |
 Alive | 14,123 (43.8%) |  |
 Dead | 18,120 (56.2%) |  |
Hospital length of stay (days), median (IQR) | 7.00 (3.00–17.00) | 149 (0.5%) |
Residence after discharge, n (%) | Â | 2974 (9.2%) |
 Home or residential place | 9,584 (32.6%) |  |
 Nursing home | 282 (1.0%) |  |
 Health-related institution | 1131 (3.9%) |  |
 Non-health-related institution | 103 (0.4%) |  |
 Hospice | 82 (0.3%) |  |
 No fixed address | 73 (0.2%) |  |
 Dead | 18,120 (61.7%) |  |
Composite of survival and return to usual residence, n (%)# | Â | 2997 (9.3%) |
 Survived and returned to usual residence | 9806 (34.4%) |  |
 Survived and did not return to usual residence | 1446 (4.9%) |  |
 Dead | 18,120 (61.7%) |  |