TABLE 1

General characteristics of patients who received noninvasive continuous positive airway pressure (CPAP) outside the intensive care unit

Patients537
Age years69 (60–76)
Male391 (73)
BMI kg·m−228 (25–31)
White blood cell count ×103 cells·μL−16.9 (5.1–9.5)
Lymphocyte count ×103 cells·μL−10.8 (0.6–1.1)
Creatinine mg·dL−11.0 (0.8–1.3)
Aspartate-aminotransferase U·L−141 (29–59)
Alanine-aminotransferase U·L−131 (22–50)
C-reactive protein mg·dL−111 (6–17)
Ferritin ng·mL−11053 (565–1643)
Lactate dehydrogenase U·L−1560 (410–786)
D-dimer μgFEU·L−1954 (526–1874)
Charlson Comorbidity Index1 (0–2)
Chronic arterial hypertension278 (52)
Diabetes138 (26)
Ischaemic heart disease66 (12)
CPAP days4 (1–8)
Hospital length of stay days16 (9–27)

Data are presented as n, median (interquartile range) or n (%). BMI: body mass index; FEU: fibrinogen-equivalent unit.