Table 2.
Patient characteristics by sex
|
Patients with ventilation |
Patients without ventilation |
||||
|---|---|---|---|---|---|
| Female | Male | Female | Male | ||
| Number of patients | 580 | 1147 | 4242 | 4052 | |
| Number of hospitals | 315 | 467 | 787 | 765 | |
| Age, years | |||||
| Mean (SD) | 70·7 (12·9) | 67·3 (13·1) | 69·6 (18·7) | 67·0 (17·2) | |
| Median (IQR) | 73·0 (63·0–80·0) | 69·0 (59·0–78·0) | 76·0 (57·0–84·0) | 70·0 (55·0–81·0) | |
| Age group, years | |||||
| 18–59 | 109 (18·8%) | 313 (27·3%) | 1192 (28·1%) | 1282 (31·6%) | |
| 60–69 | 107 (18·4%) | 275 (24·0%) | 554 (13·1%) | 685 (16·9%) | |
| 70–79 | 202 (34·8%) | 333 (29·0%) | 769 (18·1%) | 854 (21·1%) | |
| ≥80 | 162 (27·9%) | 226 (19·7%) | 1727 (40·7%) | 1231 (30·4%) | |
| Elixhauser comorbidities | |||||
| Hypertension | 379 (65·3%) | 698 (60·9%) | 2321 (54·7%) | 2177 (53·7%) | |
| Diabetes | 245 (42·2%) | 426 (37·1%) | 1,015 (23·9%) | 1105 (27·3%) | |
| Cardiac arrhythmia | 256 (44·1%) | 483 (42·1%) | 961 (22·7%) | 999 (24·7%) | |
| Renal failure | 157 (27·1%) | 260 (22·7%) | 985 (23·2%) | 885 (21·8%) | |
| Congestive heart failure | 193 (33·3%) | 334 (29·1%) | 739 (17·4%) | 697 (17·2%) | |
| Chronic pulmonary disease | 118 (20·3%) | 215 (18·7%) | 522 (12·3%) | 503 (12·4%) | |
| Obesity | 105 (18·1%) | 124 (10·8%) | 207 (4·9%) | 154 (3·8%) | |
| Obesity category by BMI, kg/m2 | |||||
| ≥30 and <35 | 32 (5·5%) | 31 (2·7%) | 82 (1·9%) | 66 (1·6%) | |
| ≥35 and <40 | 17 (2·9%) | 35 (3·1%) | 51 (1·2%) | 36 (0·9%) | |
| ≥40 | 42 (7·2%) | 40 (3·5%) | 49 (1·2%) | 32 (0·8%) | |
| Unknown | 14 (2·4%) | 18 (1·6%) | 25 (0·6%) | 20 (0·5%) | |
| Patients transferred between hospitals | 152 (26·2%) | 309 (26·9%) | 327 (7·7%) | 301 (7·4%) | |
| Length of hospital stay, days | |||||
| Mean (SD) | 26·4 (18·7) | 24·6 (18·4) | 12·3 (11·8) | 11·7 (10·8) | |
| Median (IQR) | 23·0 (11·0–39·0) | 20·0 (10·0–36·0) | 9·0 (4·0–16·0) | 8·0 (5·0–15·0) | |
| Ventilation (days) | |||||
| Mean (SD) | 13·0 (11·8) | 13·8 (12·3) | .. | .. | |
| Median (IQR) | 10·1 (4·3–18·3) | 10·0 (4·3–20·2) | .. | .. | |
| Tracheostomy | 132 (22·8%) | 313 (27·3%) | .. | .. | |
| Extracorporeal membrane oxygenation | 30 (5·2%) | 89 (7·8%) | .. | .. | |
| Dialysis | 115 (19·8%) | 354 (30·9%) | 57 (1·3%) | 73 (1·8%) | |
| Deaths | 289 (49·8%) | 617 (53·8%) | 644 (15·2%) | 679 (16·8%) | |
Data are n (%), unless otherwise indicated. BMI=body-mass index.