Table 3 Laboratory and radiology at admission. Bivariate analysis according to whether they developed severe disease, and status at discharge.

From: Prognosis of COVID-19 pneumonia can be early predicted combining Age-adjusted Charlson Comorbidity Index, CRB score and baseline oxygen saturation

Variables

Disease severity

Vital status at discharge

Moderate

Severe

p-value

Alive

Dead

p-value

n: 288

n: 104

n: 340

n: 52

Haemoglobin (mmol/L) (n: 381)

8.7 ± 1.2

8.7 ± 1.2

0.194

8.63 ± 1.06

8.13 ± 1.3

0.022

Leukocytes (× 106/L) (n: 382)

6.6 ± 4.5

7.3 ± 4.1

0.178

6.7 ± 4.4

8 ± 5

0.225

Lymphocyte (× 106/L) (n: 380)

1.3 ± 0.6

1.0 ± 0.7

0.003

1.3 ± 0.7

0.9 ± 0.6

 < 0.001

Platelets (× 106/L) (n: 381)

224 ± 90

202 ± 94

0.053

220 ± 90

200 ± 90

0.082

Sodium in plasma (mmol/L) (n: 378)

138 ± 5

138 ± 6

0.254

138 ± 5

138 ± 7

0.902

Creatinine > 0.11 mmol/L (n: 380)

37 (13%)

38 (39%)

 < 0.001

48 (14%)

27 (57%)

 < 0.001

LDH > 4.1 ukat/L (n: 371)

147 (53%)

77 (81%)

 < 0.001

182 (57%)

42 (86%)

 < 0.001

AST > 0.66 ukat/L (n: 339)

99 (39%)

41 (50%)

0.066

118 (39%)

22 (55%)

0.061

Troponin I > 0.05 mcg/L (n: 78)

3 (5%)

4 (20%)

0.045

5 (7%)

2 (25%)

0.094

CRP > 47.6 nmol/L (n: 382)

240 (84%)

95 (98%)

 < 0.001

285 (86%)

50 (98%)

0.016

PCT > 500 ng/L (n: 264)

3 (2%)

13 (18%)

 < 0.001

11 (5%)

5 (14%)

0.034

d-dimer > 0.5 mg/L (n: 331)

142 (58%)

65 (76%)

0.002

171 (59%)

36 (88%)

 < 0.001

Ferritin > 0.72 nmol/L (n: 139)

42 (37%)

12 (48%)

0.300

49 (39%)

5 (42%)

0.834

Triglycerides > 1.69 mmol/L (n: 99)

12 (16%)

7 (30%)

0.118

16 (18%)

3 (30%)

0.360

Abnormal chest X-ray. (n: 379)

275 (97%)

93 (97%)

0.880

319 (97%)

49 (96%)

0.641

  1. In each variable, total number of valid data is specified in the first column. In each outcome, absolute frequency and percentage by outcome; or mean and Standard deviation are shown; as well as p-values for the comparation of moderate vs severe disease and alive vs dead at discharge. In bold and italic those associations that are statistically significant.
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