Table 4.

Results of univariate and multivariate regression analysis of risk factors associated with severe events in COVID-19 patients with a history of CVD.

	Univariate analysis			Multivariate analysis
Variable	OR	95% CI	p-value	OR	95% CI	p-value
Decreased lymphocyte count	6.286	1.641–24.076	0.007	9.192	1.410–59.902	0.020
Increased thrombin time	15.455	1.293–184.778	0.031	1.714	0.048–60.679	0.767
Increased blood urea nitrogen	4.937	1.521–16.027	0.008	5.916	1.072–32.641	0.041
Increased serum creatinine	3.944	1.242–12.523	0.020	2.120	0.414–10.853	0.367
Increased creatine kinase	6.905	1.813–26.295	0.005	2.809	0.373–21.131	0.316
Increased Creatine kinase isoenzymes	25.556	4.323–151.082	<0.001	5.601	0.547–57.370	0.147
Increased lactate dehydrogenase.	6.900	1.984–24.000	0.002	2.435	0.442–13.409	0.307