Table 1.

Patient characteristics at the time of ICU admission.

	Non-obese (BMI < 30, n = 49)	Obese (BMI ≥ 30, n = 18)	p value
Characteristics
Body Mass Index, kg/m2	26.0 [24.4–27.7]	32.6 [31.2–34.5]	<0.0001
Age, years	65 [59–72]	66.5 [57–72]	0.99
Male	38 (76%)	12 (24%)	0.36
Female	11 (65%)	6 (35%)	0.36
APACHE II	14 (12–19)	17 (9–23)	0.54
SOFA	7 [5–8.5]	4 (4–9)	0.72
Time from first COVID signs to ICU admission, days	12 [8–15.75]	10 [7–13.5]	0.35
Medical history
Cardio vascular disease	11 (22%)	7 (39%)	0.18
Hypertension	23 (47%)	8 (44%)	0.53
Chronic kidney disease	0 (0%)	1 (6%)	0.10
Chronic obstructive pulmonary disease	3 (6%)	3 (17%)	0.18
Diabetes mellitus	11 (22%)	4 (22%)	0.98
Hematological malignancy	1 (2%)	0 (0%)	0.54
Metastatic neoplasm	4 (8%)	1 (6%)	0.72
Clinical and laboratory parameters
Mean arterial pressure, mmHg	90 [85–94]	84 [78–94]	0.07
Heart rate, beats/min	86 [77–98]	88 [81–94]	0.98
Temperature, °Celsius	38.7 [38.0 −39.5]	38.1 [36.9–38.9]	0.02
Respiratory rate, beats/min	22 (20–25)	22 (20–26)	0.87
PEEP, cmH2O	12 (10–14)	12 (12–14)	0.15
Tidal volumeIBW, ml/kg	6.4 [6.0–6.8]	6.4 [5.9–8.2]	0.78
PaO2/FiO2 ratio, mmHg	144 [95–180]	144 [107–180]	0.60
Creatinine, μmol/L	79 [65–101]	97 [58–229]	0.28
Bilirubin	7.0 (6–12)	6.0 (4–12)	0.71
Alanine aminotransferase, U/L	38.0 [21.0–56.0]	44.0 [23.5–94.0]	0.38
Aspartate aminotransferase, U/L	52.0 [37.0–67.0]	55.0 [31.5–63.5]	0.36
Leukocyte count, ×109/L	8.2 [6.2–10.8]	8.8 [0.7–10.0]	0.63
CRP, mg/L	218 [169–291]	245 [136–327]	0.43
Procalcitonin, μg/L	0.76 [0.39–1.99]	0.53 [0.28–1.56]	0.52
Ferritin, μg/L	1486 [720–2265]	1129 [724–2404]	0.74
D-dimer, ng/mL	3330 [1830–10370]	2560 [1545–2560]	0.48

Data are presented as n (%) or median [IQR].