Factors associated with SARS-CoV-2 infection amongst healthcare workers in a COVID-19 designated hospital

Background: Understanding the risk factors responsible for the increased infection among HCWs can mitigate the transmission of COVID-19 among HCWs and patients alike. The aim of this study is to evaluate factors associated with SARS-CoV-2 infection among healthcare Workers. Methods: Healthcare workers and hospital administrators were asked to participate in this cross-sectional survey study that was conducted in Jaber Al Ahmad Hospital (JAH) between August to October 2020. Participants were invited to undergo SARS-CoV-2-specific antibody testing and to complete a questionnaire targeted to factors that may be associated with acquisition of SARS-CoV-2. Descriptive analysis and multivariate logistic regression were done. Results: 847 healthcare workers participated in the study and 20.5% of them had previous SARS-CoV-2 infection. The average age of participants was 35.7 years (SD = 7.9); 52.4% were female, and 55.8% were doctors. Multivariate analysis showed that working as a nurse (adjusted OR 1.77, 95% CI = 1.15, 2.71), and wearing gloves (adjusted OR 2.93, 95% CI = 1.19, 7.22) were significantly associated with an increased likelihood of contracting SARS-CoV-2 infection while controlling for other factors. Most personal protective equipment (PPE) were reported to be available always or most of the time, with the least available PPE item being coveralls (74.4%). Conclusions: After adjusting for confounding factors, being a nurse and prolonged glove use were associated with increased likelihood of SARS-CoV-2 infection. Prospective cohort studies are required to further elucidate the reasons for our findings in order to minimize the transmission of infection among healthcare workers.