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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
  1. BMI: body mass index, kg/m2; IQR: interquartile range; SAPS 3: Simplified acute Physiology Score 3; SOFA: Sepsis-related Organ Failure Assessment. Data are presented as mean and standard deviation, unless otherwise stated; BMI missing for 137 (9%) patients; SAPS3, missing for 1 patient; SOFA missing for 8 patients
  2. aThe categories represent the Brazilian official race categories; Comparisons were made with t test, Mann–Whitney U tests or Chi-square test as appropriate