TABLE 4.

Multivariate logistic regression analysis of covid-19 clinical screening.

Index	regression coefficient	Wald $\text{χ}$2	P	OR	95% Confidence interval
serum albumin	−0.227	4.844	0.028	0.797	0.651∼0.975
Prealbumin	−0.027	7.448	0.006	0.974	0.955∼0.993
Oxygenation index	−0.018	8.861	0.003	0.982	0.97∼0.994