Table 1 Baseline characteristics at ICU admission
From: Protective ventilation and outcomes of critically ill patients with COVID-19: a cohort study
|  | All, n = 1503 | Survivors, n = 837 | Nonsurvivors, n = 666 | p value |
|---|---|---|---|---|
Characteristic | ||||
 Age, y | 60 ± 15 | 56 ± 15 | 64 ± 14 |  < 0.001 |
 BMI | 27 ± 7 | 28 ± 8 | 27 ± 7 | 0.002 |
 SAPS 3 | 64 ± 17 | 59 ± 14 | 71 ± 16 |  < 0.001 |
 SOFA | 14 ± 4 | 13 ± 4 | 15 ± 4 |  < 0.001 |
 Duration of symptoms, median (IQR), d | 9 (6–12) | 9 (7–12) | 8 (6–13) | 0.044 |
 Glasgow coma scale | 11 ± 5 | 12 ± 5 | 10 ± 6 |  < 0.001 |
Racea, n (%) | 0.425 | |||
 White | 910 (61) | 460 (60) | 450 (61) |  |
 Black | 109 (7) | 51 (7) | 58 (8) |  |
 Mix-ethnicity (Pardo) | 413 (28) | 212 (28) | 201 (27) |  |
 Asian | 56 (4) | 35 (5) | 21 (3) |  |
 Not informed | 15 (1) | 8 (1) | 7 (1) |  |
Sex, n (%) | 0.01 | |||
 Male | 895 (59) | 431 (56) | 464 (63) |  |
 Female | 608 (41) | 335 (44) | 273 (37) |  |
Comorbidities, n (%) | ||||
 Asthma | 44 (3) | 25 (3) | 19 (3) | 0.525 |
 Cancer | 148 (10) | 45 (6) | 103 (14) |  < 0.001 |
 Cardiovascular disease | 221 (15) | 100 (13) | 121 (16) | 0.077 |
 Chronic kidney disease, dialytic | 45 (3) | 18 (2) | 27 (4) | 0.179 |
 Chronic kidney disease, not dialytic | 107 (7) | 36 (5) | 71 (10) |  < 0.001 |
 Chronic pulmonary disease | 89 (6) | 35 (5) | 54 (7) | 0.031 |
 Diabetes | 563 (38) | 258 (34) | 305 (41) | 0.002 |
 Hypertension | 850 (57) | 401 (52) | 449 (61) | 0.001 |