Table 2. Univariate and Multivariate analyses for the association between SARS-CoV-2-infected patients with ARDS and without ARDS.

Characteristics	Univariate analysis				Multivariate analysis
	OR	95% CI	P value		OR	95% CI	P value
Lactate dehydrogenase, U/L	1.01	(1.01, 1.02)	0.001		1.02	(1.00, 1.04)	0.020
Aspartate aminotransferase, U/L	1.05	(1.01, 1.10)	0.008		1.00	(0.93, 1.07)	0.964
Albumin, g/L	0.81	(0.69, 0.95)	0.009		1.00	(0.70, 1.35)	0.862
Prothrombin time, s	2.07	(1.09, 3.93)	0.026		1.42	(0.46, 4.35)	0.617
Lymphocyte count, ×109/L	0.05	(0.01, 0.40)	0.005		0.19	(0.01, 3.38)	0.261
C-reactive protein, mg/L	1.03	(1.00, 1.05)	0.016		0.99	(0.94, 1.03)	0.487
Heart rate, beats per min	1.08	(1.02, 1.14)	0.004		1.10	(1.00, 1.21)	0.059
Respiratory rate, breaths per min	1.76	(1.16, 2.67)	0.008		2.00	(0.97, 4.13)	0.062
Dyspnea	8.70	(2.15, 35.22)	0.002		2.15	(0.11, 42.83)	0.617

SARS-CoV-2, severe acute respiratory syndrome coronavirus-2; OR, odds ratio; CI, confidence interval.