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COVID-19 vaccination requirements, encouragement and hesitancy among non-health care, non-congregate workers in Chicago: results from the WEVax survey
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COVID-19 vaccination requirements, encouragement and hesitancy among non-health care, non-congregate workers in Chicago: results from the WEVax survey
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COVID-19 vaccination requirements, encouragement and hesitancy among non-health care, non-congregate workers in Chicago: results from the WEVax survey
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Journal Article
COVID-19 vaccination requirements, encouragement and hesitancy among non-health care, non-congregate workers in Chicago: results from the WEVax survey
2023
Overview
Background
While frontline and essential workers were prioritized for COVID-19 vaccination in the United States, coverage rates and encouragement strategies among non-health care workers have not been well-described. The Chicago Department of Public Health surveyed non-health care businesses to fill these knowledge gaps and identify potential mechanisms for improving vaccine uptake.
Methods
The Workplace Encouragement for COVID-19 Vaccination in Chicago survey (WEVax Chicago) was administered using REDCap from July 11 to September 12, 2022, to businesses previously contacted for COVID-19 surveillance and vaccine-related outreach. Stratified random sampling by industry was used to select businesses for phone follow-up; zip codes with low COVID-19 vaccine coverage were oversampled. Business and workforce characteristics including employee vaccination rates were reported. Frequencies of requirement, verification, and eight other strategies to encourage employee vaccination were assessed, along with barriers to uptake. Fisher’s exact test compared business characteristics, and Kruskal–Wallis test compared numbers of encouragement strategies reported among businesses with high (> 75%) vs. lower or missing vaccination rates.
Results
Forty-nine businesses completed the survey, with 86% having 500 or fewer employees and 35% in frontline essential industries. More than half (59%) reported high COVID-19 vaccination rates among full-time employees; most (75%) workplaces reporting lower coverage were manufacturing businesses with fewer than 100 employees. Verifying vaccination was more common than requiring vaccination (51% vs. 28%). The most frequently reported encouragement strategies aimed to improve convenience of vaccination (e.g., offering leave to be vaccinated (67%) or to recover from side effects (71%)), while most barriers to uptake were related to vaccine confidence (concerns of safety, side effects, and other skepticism). More high-coverage workplaces reported requiring (
p
= 0.03) or verifying vaccination (
p
= 0.07), though the mean and median numbers of strategies used were slightly greater among lower-coverage versus higher-coverage businesses.
Conclusions
Many WEVax respondents reported high COVID-19 vaccine coverage among employees. Vaccine requirement, verification and addressing vaccine mistrust may have more potential to improve coverage among working-age Chicagoans than increasing convenience of vaccination. Vaccine promotion strategies among non-health care workers should target low-coverage businesses and assess motivators in addition to barriers among workers and businesses.
