Table 4.

Risk factors of laboratory-confirmed SARS-CoV-2 infection at M3 (after imputation of missing data; N = 1,062)).

	Bivariate analysis			Multivariable analysis
	OR	[95% CI]	p value	OR	[95% CI]	p value
Age	0.98	[0.97; 1.00]	0.06	0.99	[0.97; 1.01]	0.41
Women	1.05	[0.70; 1.56]	0.79	1.04	[0.65; 1.67]	0.85
Working in a referent hospital for emerging biological risk	0.90	[0.63; 1.28]	0.57	1.16	[0.76; 1.77]	0.49
Working department			0.0002			0.003
Virology laboratory	1			1
Intensive care unit	2.07	[0.47; 9.02]		1.80	[0.38; 8.58]
Emergency department	4.10	[0.97; 17.39]		3.91	[0.83; 18.43]
Infectious diseases department	5.65	[1.33; 23.09]		4.22	[0.92; 18.28]
Professional category			0.12			0.38
Senior physicians	1			1
Medical students	1.79	[0.93; 3.44]		1.69	[0.68; 4.18]
Care assistants	0.85	[0.47; 1.53]		0.99	[0.50; 1.96]
Nurses	1.24	[0.77; 2.00]		1.49	[0.85; 2.63]
Othersa	0.71	[0.35; 1.42]		0.87	[0.40; 1.87]
Experience in the department ≥ 12 months	0.78	[0.53; 1.16]	0.23	1.14	[0.60; 2.17]	0.70
Experience in the job ≥ 12 months	0.86	[0.48; 1.55]	0.63	0.97	[0.42; 2.24]	0.83
Night shift	1.03	[0.60; 1.75]	0.88	1.00	[0.52; 1.90]	0.91
Public transportation use	1.21	[0.84; 1.75]	0.32	1.17	[0.79; 1.75]	0.44
Active smoker	0.38	[0.22; 0.66]	0.0005	0.36	[0.21; 0.63]	0.0003

OR odds ratio, CI confidence interval.

^aOthers include (but not limited to): secretaries, nurse’s managers, social workers.