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Using classification and regression tree analysis to explore parental influenza vaccine decisions
Yuki Lama1, Gregory R Hancock2, Vicki S Freimuth3
1Department of Family Science, University of Maryland, College Park, MD, United States.
Vaccine
|December 7, 2019
Summary
Parental vaccine hesitancy impacts childhood influenza immunization rates. Understanding factors like physician recommendations and vaccine confidence is key to increasing vaccination coverage in children and adults.
Area of Science:
- Public Health
- Epidemiology
- Vaccinology
Background:
- Influenza vaccination is recommended for all individuals under 18 years by the CDC, but uptake remains low.
- Parental decisions significantly influence childhood influenza vaccine uptake, highlighting the need to address parental vaccine hesitancy.
- Understanding the factors behind parental decisions is crucial for improving vaccination rates and preventing influenza-related mortality.
Purpose of the Study:
- To identify predictors of children's influenza vaccine status based on parental vaccination status.
- To examine factors contributing to concordance or discordance between parental and children's influenza vaccine uptake.
- To explore the drivers of parental decisions regarding childhood influenza vaccination.
Main Methods:
- Classification and Regression Tree (CART) analyses were employed to determine key variables influencing parental decisions.
- The study explored the hierarchy and interactions of these variables in predicting children's vaccination status.
- Data were collected from a nationally representative online survey of 328 non-Hispanic Black and White parents.
Main Results:
- Key factors influencing parental decisions included vaccine behavior after physician recommendation, knowledge of child influenza vaccine recommendations, vaccine confidence, and perceived disease risk.
- Among unvaccinated parents, concordance was highest when parents typically do not vaccinate after physician recommendation and possess limited knowledge of recommendations.
- Maximum discordance was observed in unvaccinated parents with low hesitancy towards recommended vaccines.
Conclusions:
- Identifying drivers of parental vaccination decisions provides insights for targeted health communication and healthcare provider strategies.
- Addressing parental vaccine hesitancy and improving vaccine confidence are essential for increasing influenza vaccine coverage.
- Enhanced understanding can help reduce influenza-related morbidity and mortality in pediatric populations.
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