Table 1

Demographic and clinical characteristics

CharacteristicTotal, n=40HBO2, n=20Control, n=20
Male, n (%)26(65)13(65)13(65)
Age, years*55.2±9.252.8±8.557.7±9.3
Weight, kg†82.0 (90.0; 75.0)79.5 (74.0; 90.0)86.0 (79.0; 100.0)
Height, cm†172.5 (169.5; 179.0)171.0 (169.5; 174.0)175.0 (170.5; 179.5)
BMI, kg/m227.7 (25.1; 30.3)27.9 (24.7; 29.0)27.2 (25.8; 32.1)
SAP, mm Hg†120.0 (120.0; 130.0)120.0 (115.0; 127.5)125.0 (120.0;130.0)
DAP, mm Hg*77.8±10.475.9±10.779.7±9.9
HR, bpm*88.8±13.485.9±14.691.7±11.7
Respiratory rate, rpm*26.4±4.625.3±0.927.4±1.0
Temperature, °C†36.7 (36.4; 37.0)36.8 (36.4; 37.2)36.7 (36.4; 36.8)
Haematocrit %*38.3±4.839±3,9937.7±5.4
White cell count, /mm3 *9,008±34569,214±32098,803±3758
Lymphocytes, /mm3*1,319±4891,403±5631,245±415
Platelets, ×1000/mm3281.5 (212.0; 352.5)299.5 (268.1–372.0)268.0 (105.5; 310.0)
Blood glucose, mg/dL†109.0 (99.0; 119.5)109.0 (101.5; 115.5)107.0 (97.0; 199.5)
Urea, mg/dL†39.0 (26.0; 46.0)34.0 (24.0; 46.0)40.5 (32.4; 45.5)
Creatinine, mg/dL†0.88 (0.7; 1.1)0.9 (0.7; 1.0)0.9 (0.7; 1.1)
Sodium, mEq/L*136.4±4.8136.7±3.2136.4±4.8
Potassium, mEq/L*4.0±0.43.9±0.44.0±0.3
Comorbidity
Obesity, n (%)14 (35.0)6 (30.0)8 (40.0)
Hypertension, n (%)13 (32.5)8 (40.0)5 (25.0)
Diabetes, n (%)7 (17.5)3 (15.0)4 (20.0)
COPD, n (%), 2 (5.0)0 (0.0)2 (10.0)
 Asthma, n (%)2 (5.0)2 (10.0)0 (0.0)
 CKD, n (%)2 (5.0)1 (5.0)1 (5.0)
 Cancer, n (%)2 (5.0)0 (0.0)2 (10.0)
Symptoms, n (%)
 Fever35 (87.5)17 (85.0)18 (90.0)
 Odynophagia17 (42.5)10 (50.0)7 (35.0)
 Anosmia6 (15.0)4 (20.0)2 (10.0)
 Dysgeusia7 (17.5)4 (20.0)3 (15.0)
 Dyspnoea37 (92.5)19 (95.0)18 (90.0)
 Headache4 (10.0)2 (10.0)2 (10.0)
  • Data are described as

  • *mean±SD.

  • †median (IQR).

  • BMI, body mass index; bpm, beats per minute; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; DAP, diastolic arterial pressure; rpm, rate per minute; SAP, systolic arterial pressure.