Skip to main content
. 2021 Apr 21;12:593595. doi: 10.3389/fimmu.2021.593595

Table 2.

Laboratory parameters of participants at admission.

Parameter Influenza A(H1N1) pdm09A N = 23 p-value A vs. B Moderate COVID-19B N = 10 p-value B vs. C Severe COVID-19C N = 24 p-value A vs. C
Glucose (mg/dL) 132.1 (111 – 207.4) 0.1241 96.5 (85.2 – 112) 0.3025 124.3 (99 – 163.7) >0.9999
Blood count
White blood cells (109/L)
Neutrophils (109/L)
Lymphocytes (109/L)
NLR
Hgb (g/dL)
Platelets (109/L)

7.3 (5.8 – 11.9)
5.7 (4.6 – 9.9)
0.7 (0.4 – 0.9)
8.4 (5.1 – 17.1)
14.2 (13 – 17.3)
173 (141 – 205)

0.0069
0.0057
0.5050
0.0120
0.6994
>0.9999

4.0 (3.5 – 5.7)
2.9 (1.8 – 3.9)
0.9 (0.6 – 1.2)
3.1 (1.6 – 5.7)
15.4 (14.2 - 16.4)
192 (137 – 224)

0.0007
0.0184
>0.9999
0.0702
0.0755
0.7794

9.5 (6.4 – 13.1)
7.4 (4.1 – 10.1)
0.9 (0.6 – 1.2)
8.7 (3.7 – 13.4)
13.7 (13.2 – 15.1)
208 (165 – 258)

>0.9999
>0.9999
0.3522
>0.9999
0.5663
0.1547
Renal function
Cr (mg/dL)
BUN (mg/dL)
Na (mmol/L)
K (mmol/L)

1.1 (0.9 – 2.2)
22.2 (16.2 – 34.3)
135.2 (132.5 – 139.3)
4.2 (3.8 – 4.6)

0.5773
0.1106
>0.9999
0.7951

1.0 (0.8 – 1.1)
14.5 (10.5 – 18.8)
137 (136 – 139)
4.0 (3.7 – 4.2)

>0.9999
0.6716
0.4082
0.6386

0.9 (0.8 – 1.5)
18 (11.9 – 26.8)
139.8 (136.2 – 141.7)
4.2 (4 – 4.5)

0.4344
0.7558
0.0161
>0.9999
Liver function
Total bilirubin (mg/dL)
AST (U/L)
ALT (U/L)
ALP (U/L)

0.6 (0.4 – 0.8)
60.9 (39.6 – 84.1)
29.2 (23.3 – 47.5)
122.7 (86.1 – 169.7)

0.0344
0.0026
0.4934
0.0016

0.3 (0.3 – 0.4)
22.6 (15 – 38.5)
21.7 (17.2 – 32.1)
72.5 (58.2 – 80.5)

0.0183
0.0170
0.0435
0.6821

0.5 (0.4 – 0.8)
43.5 (29 – 90.7)
40.2 (28.8 – 56.8)
78 (63.4 – 88.2)

>0.9999
>0.9999
0.5891
0.0104
Other biomarkers
LDH (U/L)
CPK (U/L)
Procalcitonin (ng/mL)

643.8 (452.2 – 804.7)
274.4 (158.2 – 771.2)
0.6 (0.2 – 3.6)

<0.0001
0.0277
<0.0001

186 (165.8 – 251.5)
73 (49.7 – 161.3)
0.05 (0.05 – 0.08)

0.0070
0.1225
0.1652

414.5 (318 .4– 494.8)
160.3 (74.6 – 1419)
0.1 (0.09 – 0.17)

0.0269
>0.9999
0.0008
Gasometric parameters
pH
PaO2 mmHg
PCO2 mmHg
Lactate (mmol/L)
HCO3 (mEq/L)

7.37 (7.32 – 7.45)
51 (38 – 67)
35 (30 – 48)
1.2 (0.8 – 1.5)
22.2 (17.9 – 27.4)

0.2325
0.0768
>0.9999
ND
>0.9999

7.43 (7.41 – 7.46)
65 (55 – 91)
34 (29 – 37)
ND
22.6 (21.5 – 25.8)

0.3277
0.1260
>0.9999
ND
0.4845

7.41 (7.33 – 7.45)
51 (42 – 65)
34 (27 – 47)
0.9 (0.8 – 1.1)
21.1 (19 – 22.8)

>0.9999
>0.9999
>0.9999
0.1309
0.9628
PaO2/FiO2
Mild (PaO2/FiO2 201 - 300)
Moderate (PaO2/FiO2 101-200)
Severe (PaO2/FiO2 <100)
96 (62.8 – 160)
1 (4.34)
11 (47.82)
11 (47.82)
<0.0001
0.0002
0.3410
0.0129
314 (262 – 433)
7 (70)
3 (30)
0 (0)
0.001
0.0019
0.0836
0.0815
127 (96 – 155)
3 (12.5)
15 (62.5)
6 (25)
0.5999
0.6085
0.3118
0.1035
Severity of illness scores
SOFA
APACHE II

8 (7 – 13)
11 (5 – 18)

<0.0001
0.0405

1 (0 – 2)
4 (0 – 7.5)

0.0031
0.3546

6 (3 – 8)
7 (4 – 10)

0.0398
0.6420

Data are displayed as n (%) or median (IQR). N is the total number of patients with available data. ALP, alkaline phosphatase; APACHE-II, Acute Physiology and Chronic Health Evaluation II; AST, aspartate aminotransferase; ALT, alanine aminotransferase; BUN, blood ureic nitrogen; CPK, creatine phosphokinase; Cr, creatinine; FiO2, fraction of inspired oxygen; HCO3, bicarbonate; Hgb, hemoglobin; IQR, interquartile range; LDH, lactate dehydrogenase; ND, not determined; NLR, neutrophil/lymphocyte ration; PaO2, partial pressure of oxygen in arterial blood; PCO2, partial pressure of carbon dioxide in the blood; SD, standard deviation; SOFA, Sequential Organ Failure Assessment. Differences in continuous variables were estimated using the Kruskal Wallis with post hoc Dunn´s test. Differences in categorical variables were calculated using the Fisher’s exact or the Chi-square test as appropriate.