Table 3

Univariate and multivariate analysis of factors of baseline conditions

Variables	Univariate analysis			Multivariate analysis
Variables	OR	95% CI	P valúe	OR	95% CI	P valúe
Age	1.03	1.01 to 1.06	0.009
Female gender	2.41	1.31 to 4.45	0.005
Doctor	Ref	Ref	0.0001	Ref	Ref	<0.0001
Nurse	2.25	1.28 to 3.94		2.09	1.18 to 3.72
Other HCW	5.98	2.67 to 13.4		6.94	3.01 to 16.04
Filter mask versus surgical	2.08	1.07 to 4.07	0.026	2.14	1.07 to 4.32	0.027
Mornings and 24-hour duties	Ref	Ref	0.0001
Rotating shifts	3.35	1.81 to 6.23
Other work shifts	2.83	1.52 to 5.32
Asthma	0.33	0.12 to 0.92	0.03	0.29	0.09 to 0.89	0.026
Tobacco	3.13	1.39 to 7.01	0.003
Anxiety	2.34	0.91 to 6.05	0.063

95%CI, 95% Confidence Interval; HCW, healthcare workers; HCW, healthcare worker; OR, odds ratio; Ref., Reference category.