Table 3 Univariate logistic regression analysis of factors affecting progression to severe illness

Use of Thymalfasin or not

0.16

-1.738

0.08

Age (65 as the demarcation)

5.661130*10⁶

0.015

0.98

Gender

1.44

0.64

0.52

WBC (10 as the demarcation)

4.45

2.55

0.01

CRP (50 as the demarcation)

7.04

2.53

0.011

PCT (0.05 as the demarcation)

3.91

1.77

0.08

LYM (20% as the demarcation)

1.07

0.13

0.90