The Prediction Model of Risk Factors for COVID-19 Developing into Severe Illness Based on 1046 Patients with COVID-19

Table 9

Factors affecting the COVID-19 patients developing severe illnesses after assignment.

		B	Standard error	Wald	Degree of freedom	Significance	Exp (B)	95% CI of Exp (B)
								Lower limit	Upper limit
Step 1^a	Age	0.113	0.011	98.200	1	<0.001	1.120	1.095	1.145
	Underlying diseases	0.457	0.196	5.447	1	0.020	1.579	1.076	2.318
	Number of symptoms	0.819	0.181	20.505	1	<0.001	2.268	1.591	3.232
	Constant	−8.811	0.708	154.838	1	<0.001	<0.001

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