Accepted for/Published in: JMIR Public Health and Surveillance
Date Submitted: Nov 3, 2021
Date Accepted: Apr 26, 2022
The Moderated Mediation Model of Vaccination Intention and Behavior: Evidence from the Theory of Planned Behavior
ABSTRACT
Background:
Background:
Promoting vaccination and eliminating vaccine hesitancy are key measures for controlling vaccine-preventable diseases.
Objective:
Objective:
To understand the beliefs and drivers of vaccination behavior and explore the relationship between each dimension of the theory of planned behavior (TPB), with vaccination intention and practices.
Methods:
Methods:
An online survey was conducted in 34 provinces in mainland China from May 24, 2021 to June 15, 2021, to test the TPB model. This model is influenced by the mediating role of vaccination intention and connects attitudes (ATT) and subjective norms (SNs), with vaccination behavior and the moderating role of perceived behavioral control (PBC), in influencing mediation. Hierarchical regression analysis and structural equation modeling were performed, to test the validity of the TPB theoretical framework.
Results:
Results:
A total of 9924 participants, aged 18-59 years, were included in this study. Vaccination intention plays a mediating role in the relationship between ATT and SN, and vaccination practices. The indirect effect of ATT on vaccination behavior was 0.164 and that of SN was 0.255, and the difference was statistically significant (P < .001). The moderated mediation analysis further indicated that PBC would affect the mediation when used as moderator, ATT * PBC (β = -0.052, P < 0.001) and SN * PBC (β = -0.028, P = .006), respectively.
Conclusions:
Conclusions:
SNs have a stronger influence than ATT on vaccination behavior. PBC, when affecting the entire model as a moderator, would have an alternative relationship with ATT and SN and would inversely inhibit the implementation of vaccination practices.
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Copyright
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