Table 1.

Comparison between vaccinated and non-vaccinated healthcare workers.

Variable	Vaccinated (n = 911)	Non-vaccinated (n = 1650)	p-value
Sex, % (95% CI) female	67.7 (64.6–70.8)	70.6 (68.3–72.8)	0.14
Age (years), mean (SD)	46.3 (11.5)	47.1 (11.5)	0.09
Foreign origin, % (95% CI)	2.7 (1.8–4.0)	4.6 (3.6–5.7)	0.027
SARS-CoV-2 testing frequency, mean (SD)	6.0 (3.0)	4.8 (2.9)	<0.001

CI = confidence interval.