Table 3.

Predictors of IgG anti-SARS-CoV-2 serostatus.

	Odds ratio	95% confidence interval	p Value
Age at sampling, years	0.988	0.980–0.995	0.001
Time from study start, days	1.019	1.004–1.035	0.014
Male sex	1.107	0.879–1.394	0.387
Working in primary health care	0.711	0.493–1.026	0.068
Working with outpatient care	0.631	0.497–0.801	<0.001
Working in Covid-19 specific unit	1.114	0.766–1.619	0.572
Working in Covid-19 possible unit	1.275	0.945–1.721	0.112

Multivariable logistic regression model. Only healthcare staff included in the analysis.