Objective: Pregnant women are a vulnerable population for coronavirus disease 2019 (COVID-19) due to their risk for severe symptoms and adverse perinatal outcomes. Our objective was to identify contributors to COVID-19 vaccine intention in pregnancy and subsequent uptake, informed by the Theory of Planned Behavior, the Health Belief Model, and paradigms implicating social determinants of health (SDoH).
Method: Total of 1,899 pregnant women across the United States completed questionnaires in December 2020 (T1) and April 2021 (T2). A structural equation model (SEM) was built from hypothesized contributors to vaccine intention (T1) and uptake (T2), including perceived threat of COVID-19, attitudes toward infection mitigation behaviors, and social determinants of health SDoH (i.e., socioeconomic status [SES], minoritized identity), controlling for maternal health, age, and county-level political orientation.
Results: In the SEM, SDoH variables, perceived threat and behavioral attitudes predicted vaccine intention. SDoH were directly associated with vaccine uptake and indirectly associated via vaccine intention (SES direct effect b = .17, total effect b = .38; identifying as Black/African American direct effect b = -.05, total effect b = -.09) The SEM demonstrated good fit and explained 38% of the variance in vaccine intention and 26% in vaccine uptake.
Conclusions: COVID-19 vaccination for pregnant women is influenced by SDoH and perceptual factors. Particular attention should focus on persons with lower SES and Black/African American women who reported lower vaccination intention and uptake. Potential routes to increase vaccination in perinatal populations include reducing accessibility barriers and providing information about vaccine safety and efficacy. (PsycInfo Database Record (c) 2023 APA, all rights reserved).