| All patients | Missing | Frail | Non-Frail | p-value |
---|---|---|---|---|---|
n = 920 | n, (%) | n = 221 | n = 699 | ||
Age, years | 79 (68–87) | 0 | 85 (78–90) | 77 (66–86) | < 0.001 |
Male | 513 (55.8%) | 0 | 105 (47.5%) | 408 (58.4%) | < 0.001 |
Charlson comorbidity indexa | 1 (0–2) 1.2 ± 1.6 | 0 | 1 (0–2) 1.5 ± 1.7 | 1 (0–2) 1.1 ± 1.5 | < 0.001 |
Severity | |||||
 SOFA total | 6 (3–8) | 71 (7.7) | 6 (4–8) | 5 (3–8) | 0.286 |
Clinical Frailty Scale score | 2 (1–4) | 0 | 5 (5–7) | 2 (1–3) | < 0.001 |
Lifestyle |  | 10 (1.1) |  |  | < 0.001 |
 Living alone | 298 (32.4%) |  | 39 (17.8%) | 259 (37.5%) |  |
 Not living alone | 549 (59.7%) |  | 144 (65.8%) | 405 (58.6%) |  |
 Homelessness | 3 (0.3%) |  | 0 (0.0%) | 3 (0.4%) |  |
 Nursing home | 48 (5.2%) |  | 34 (15.5%) | 14 (2.0%) |  |
 Unknown | 12 (1.3%) |  | 2 (0.9%) | 10 (1.4%) |  |
Location of hypothermia incidence |  | 24 (2.6) |  |  | < 0.001 |
 Outdoor | 218 (23.7%) |  | 14 (6.5%) | 204 (30%) |  |
 Indoor | 678 (73.7%) |  | 203 (93.5%) | 475 (70%) |  |
Hypothermia caused mechanism |  | 57 (6.2) |  |  | < 0.001 |
 Acute medical illness | 465 (50.5%) |  | 123 (60.6%) | 342 (51.8%) |  |
 Trauma, Submersion, and distress | 126 (13.7%) |  | 17 (8.4%) | 109 (16.5%) |  |
 Alcohol intoxication | 41 (4.5%) |  | 3 (1.5%) | 38 (5.8%) |  |
 Others (Unknown, drug) | 231 (25.1%) |  | 60 (29.6%) | 171 (25.9%) |  |