Table 1 Evaluated characteristics of patients with severe COVID-19 infection

Age (years)^a

56 (46,62)

55.5 (45,60)

56 (47,66)

0.375

 Male

41 (69.5)

21 (70)

20 (68.9)

0.931

 Female

18 (30.5)

9 (30)

9 (31)

HTN n (%)

13 (22)

7 (23.3)

6 (20.6)

0.807

DM n (%)

16 (27.1)

6 (20)

10 (34.4)

0.211

Chronic lung disease n (%)

2 (3.3)

2 (6.6)

0 (0)

0.157

HR/min

95 (89,105)

92.5 (89,100)

96 (90,108)

0.280

Systolic BP (mmHg)

120 (115,130)

120 (120,130)

120 (110,130)

0.428

Diastolic BP (mmHg)

80 (70,80)

80 (70,80)

80 (70,80)

0.542

RR /min

19 (18,22)

19.5 (18,22)

19 (18,21)

0.927

BT (°C)

37.1 (36.7,37.7)

37.05 (36.5,37.8)

37.1 (36.9,37.6)

0.772

O₂ saturation (%)

88 (85,89)

88 (85,89)

88 (85,89)

0.436

WBC (1000/mm³)

5.6 (4.6,8.7)

5.0 (4.2,7)

6.6 (5,10.9)

0.026

Neutrophil (%)

78 (70,83)

74 (70,80)

80 (74,87)

0.114

Lymphocyte (%)

18 (11,22)

19 (14,25)

16 (9,20)

0.085

Hb (g/dl)

13.9 (12.4,15)

13.7 (12.2,15)

14 (13.1,15.1)

0.309

Plt (1000/mm³)

190 (137,226)

186 (133,220)

191 (160,234)

0.457

LDH (U/L)

591 (444,742)

545.5 (473,705)

611 (421,800)

0.677

BUN (mg/dl)

34 (27,58)

30.5 (27,46)

50 (27,68)

0.082

Creatinine (mg/dl)

1.1 (1,1.3)

1 (0.8,1.1)

1.2 (1,1.4)

0.001

K (mEq/L)

4.1 (3.9,4.4)

4 (3.9,4.5)

4.1 (3.9,4.3)

0.813

Na (mEq/L)

138 (136,140)

138 (137,140)

138 (135,143)

0.728

ESR

29 (20,46)

28 (23,50)

31 (20,41)

0.808

AST (U/L)

31 (21,42)

34.5 (21,53)

29 (18,40)

0.271

ALT (U/L)

35 (27,45)

34 (27,42)

38 (24,47)

0.596

BS (mg/dl)

120 (106,174)

118 (105,141)

131 (109,229)

0.295

pH

7.3 (7.3,7.4)

7.4 (7.3,7.4)

7.3 (7.3,7.4)

0.210

PaO₂ (mmHg)

45 (38,49)

45 (40,49)

45 (37,50)

0.767

PCO₂ (mmHg)

39 (36,45)

38 (35,42)

39 (38,47)

0.084

HCO₃ (mEq/L)

24 (21,26)

24 (23,26)

24 (21,26)

0.522

Duration of stay in ICU (days)

3 (2,6)

4 (3,6)

3 (2,4)

0.101

Duration of hospitalization (days)

8 (6,11)

9 (7,13)

7 (6,9)

0.014