Table 2.

The univariate and multivariate logistic regression analysis independent high-risk factors for severity of COVID-19 patients.

	Un COX analysis		Mul COX analysis
	HR (95% CI)	P value	HR (95% CI)	P value
D-dimer (mg/L)
≤0.55	1	–	1	–
>0.55	2.961 (1.936–4.529)	0.000	1.070 (0.672–1.702)	0.776
Comorbidity
Without	1	–	1	–
With	4.617 (2.971–7.173)	0.000	3.166 (1.960–5.114)	0.000
Age (years)
≤60	1	–	1	–
>60	5.557 (3.633–8.499)	0.000	2.307 (1.427–3.728)	0.001
Lymphocyte (×10/L)
>1.0	1	–	1	–
≤1.0	3.814 (2.440–5.961)	0.000	1.234 (0.741–2.054)	0.419
LDH (U/L)
≤250	1	–	1	–
250–500	3.944 (2.526–6.158)	0.000	1.531 (0.918–2.553)	0.103
>500	4.215 (1.487–11.943)	0.007	2.572 (0.869–7.612)	0.088
ALB (g/L)
≥40	1	–	1	–
<40	7.899 (4.374–14.267)	0.000	3.663 (1.912–7.018)	0.000
CRP (mg/L)
<10	1	–	1	–
≥10	7.022 (4.076–12.098)	0.000	3.161 (1.677–5.961)	0.000