Influencing Factors of Pregnant Women's Willingness to Receive Influenza Vaccination in China.

BACKGROUND

Seasonal influenza presents a major public health issue with a heavy disease burden on pregnant women, who are at increased risk of severe outcomes, yet vaccination uptake remains low.

OBJECTIVE

Investigate pregnant women's willingness to receive influenza vaccination, identify key influencing factors, and elucidate the pathways shaping this willingness.

METHODS

A cross-sectional web-based survey was performed. The questionnaire included their socioeconomic characteristics, pregnant status and histories, knowledge of the influenza vaccine, and attitudes toward the seasonal influenza vaccine. A univariate analysis was initially performed to screen potential variables associated with pregnant women's willingness to receive influenza vaccination. Subsequently, a multivariate binary logistic regression model was constructed to assess the independent effects of these variables on vaccination willingness. Additionally, a mediation effect model was developed to analyze the mediating pathways of factors influencing vaccination willingness.

RESULTS

A total of 1231 pregnant women participated in this survey. Five hundred and seventy-one (46.4%) were willing to receive the seasonal influenza vaccine. Multivariate analysis identified five key factors influencing willingness: higher annual income (CNY ≥ 200,000 vs. ≤100,000: OR = 2.65, 95% CI: 1.02-6.85), history of delivery difficulties (OR = 0.10, 95% CI: 0.02-0.62), knowledge about the influenza vaccine (OR = 1.69, 95% CI: 1.28-2.23), supportive attitudes towards vaccination (OR = 13.35, 95% CI: 8.26-21.55), and willingness to pay over 500 yuan for the vaccine (OR = 2.29, 95% CI: 1.23-4.27). Attitudes towards vaccination were partially mediated by vaccine knowledge (β = 0.03, 16% of total effect), with no mediation effects observed for price or delivery history.

CONCLUSIONS

This study pinpointed pivotal factors contributing to pregnant women's hesitancy towards seasonal influenza vaccination. Our findings underscore the urgent need for integrating influenza vaccination programs with comprehensive educational and promotional strategies in the future.