Grocery workers were essential to the workforce and exempt from lockdown requirements as per Minnesota Executive Order 20–20. The risk of COVID-19 transmission in grocery settings is not well documented. This study aimed to determine which factors influenced seropositivity among grocery workers. We conducted a cross-sectional study of Minnesota grocery workers aged 18 and older using a convenience sample. Participants were recruited using a flyer disseminated electronically via e-mail, social media, and newspaper advertising. Participants were directed to an electronic survey and were asked to self-collect capillary blood for IgG antibody testing. Data were analyzed using logistic regression and adjusted for urbanicity, which confounded the relationship between number of job responsibilities in a store and seropositivity. Of 861 Minnesota grocery workers surveyed, 706 (82%) were tested as part of this study, of which 56 (7.9%) tested positive for IgG antibodies. Participants aged 65–74 years had the highest percent positivity. Having multiple job responsibilities in a store was significantly associated with seropositivity in our adjusted model (OR: 1.14 95% CI: 1.01–1.27). Workplace factors influenced seropositivity among Minnesota grocery workers. Future research will examine other potential factors (e.g., in-store preventive measures and access to PPE) that may contribute to increased seropositivity.
|Original language||English (US)|
|Journal||International journal of environmental research and public health|
|State||Published - Mar 1 2022|
Bibliographical noteFunding Information:
Funding: This research was funded by Minnesota Department of Health, grant: Minnesota SARS-CoV-2 Serology Studies. CON000000089530.
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
- Grocery workers
- Cross-Sectional Studies
- Seroepidemiologic Studies
- Communicable Disease Control
PubMed: MeSH publication types
- Research Support, Non-U.S. Gov't
- Journal Article