Parameters at admission

Overall (N = 511)

Survivors

(N = 484)

Non-survivors

(N = 27)

p

BMI, mean ± SD, kg/m²

27.83 ± 4.82

27.85 ± 4.74

27.34 ± 6.11

0,589

Age years

56.2 ± 15.5

55.4 ± 15.2

69.2 ± 14.8

< 0.0001^*

Sex (male)

48.1 (246)

47.7(231)

55,6(15)

0.429

Smokers

13.9 (69)

13.4 (63)

23,1 (6)

0.166

Comorbidities

Heart disease

12.5 (64)

11.2 (54)

37.0 (10)

< 0.0001^*

Hypertension

33.1 (169)

32.4 (157)

44.4 (12)

0.197

Diabetes mellitus

25.8 (132)

24.0 (116)

59.3 (16)

< 0.0001^*

Asthma

5.5 (28)

5.6 (27)

3.7 (1)

0.678

COPD

1.8 (9)

1.2 (6)

11.1 (3)

0.0001^*

Chronic kidney disease

2 (10)

1.5 (7)

11.5 (3)

0.0003^*

Symptoms

Cough

75.5 (385)

75.0 (363)

84.6 (22)

0.268

Dyspnea

51.2 (261)

49.4 (239)

84.6 (22)

0.0008^*

SpO₂ > 92%

61.8 (315)

64.3 (311)

15.4 (4)

< 0.0001^*

Air ambient Oxy-sat (%)

90.3 ± 9.6

91.2 ± 8.01

72.8 ± 17.1

< 0.0001

Hemoglobin (g/l)

12.86 ± 1.75

12.9 ± 1.7

12.4 ± 2.1

0.162

Polynuclear neutrophils (/mm³)

5961 ± 3603

5845 ± 3557

7898 ± 3879

0.004^*

Lymphocytes (/mm³)

1184 ± 729

1187 ± 724

1134 ± 816

0.719

ESR (1^st hour) (mm)

65.3 ± 37.6

65.2 ± 37.9

67.0 ± 31.2

0.850

C-reactive protein (mg/l)

54.5 ± 59.0

52.9 ± 57.8

82.5 ± 72.1

0.017^*

LDH level (u/l)

555.4 ± 305.7

547.0 ± 294.4

738.4 ± 466.3

0.009^*

D-dimers > 1600 ng/ml

25.7 (75)

24.0 (64)

44.0 (11)

0.03^*

Kaliemia (mmol/l)

3.90 ± 0.47

3.87 ± 0.46

4.15 ± 0.70

0.017^*

Natremia (mmol/l)

136.8 ± 4.67

136.7 ± 4.64

138.6 ± 5.01

0.092

CT extent of covid-19

< 10%

21.6 (106)

22.3 (104)

8.7 (2)

0.147

10-25%

17.8 (87)

18.2 (85)

8.7 (2)

0.245

25-50%

2.2 (138)

28.1 (131)

30.4 (7)

0.904

50-75

16.9 (83)

15.8 (74)

39.1 (9)

0.004^*

> 75

2.2 (11)

1.9 (9)

8.7 (2)

0.032^*

Length of stay in the hospital(day)

10.1 ± 6.5

10.0 ± 6.2

11.1 ± 9.9

0.332

Quantitative and categorical data were expressed as mean ± standard deviation and number (%), respectively. p (probability) : p < 0.05 (^*Student Test)