Table 3.

Univariate and multivariate logistic regression analysis of predictive factors for severe pneumonia with COVID-19.

Variables	Univariate			Multivariate
	Adjusted OR	95% CI	p-Value	OR	95% CI	p-Value
Age	1.06	1.03–1.10	<0.001
Sex	2.38	1.49–3.81	<0.001
Nursing facility living	0.67	0.34–1.33	0.255
ADL impairment	5.84	3.27–10.42	<0.001	5.33	2.42–11.73	<0.001
Comorbidity	2.15	1.34–3.44	0.002	1.97	0.96–4.01	0.064
Dementia	1.38	0.71–2.66	0.340
Fever	8.54	4.92–14.81	<0.001	3.20	1.52–6.74	0.002
Initial CXR infiltration	3.37	1.94–5.85	<0.001	2.32	1.02–5.27	0.044
Initial CRP	1.45	1.33–1.58	<0.001	1.33	1.21–1.45	<0.001

All variables were adjusted for age in univariate logistic regression analysis except age. OR, odds ratio; CI, confidence interval; ADL, activities of daily living; CXR, chest X-ray; CRP, C-reactive protein.