Seroprevalence of anti-SARS-CoV-2 IgG among healthcare workers of a large university hospital in Milan, Lombardy, Italy: a cross-sectional study.

BMJ Open · 2021 · PMC7902322 · PMID 33619203

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a positive trendno p-value reported

There was a positive trend of test positivity according to BMI, while current smokers had less than half the prevalence of test positivity than former and never smokers (4.0%, 8.9% and 8.5%, respectively).

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