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Unexplained variations in general practitioners’ perceptions and practices regarding vaccination in France

Background
Given geographical disparities in vaccination coverage (VC) and the crucial role general practitioners (GPs) play in vaccination in France, we sought to: 1) determine the existence of geographical variations in GPs' perceptions of vaccines, their trust in information sources, and the frequency of their recommendations to patients by comparing data from southeast (SE), central-west (CW), northwest (NW), and the rest of France; and 2) identify individual and contextual factors associated with regional variations in GPs' recommendations.


Methods
This cross-sectional observational study in 2014 collected data from a panel of 2586 French GPs in private practice: 3 specific regional samples and a fourth sample for the rest of France. We calculated a composite score summarizing GPs' vaccine recommendation frequency for 6 vaccine situations and used a five-step hierarchical linear regression to study the score's links with practice location and individual and contextual factors.


Results
GPs' vaccine recommendation frequency score was highest in NW France and lowest in the SE. The low SE score was explained by GPs' greater doubts about vaccine utility and risks and lower trust in information sources. The high NW score was partially explained by greater adherence to guidelines by GPs there. The contextual factors studied did not explain regional differences.


Conclusion
The geographical variations in GPs' vaccination-related attitudes and practices suggest that vaccine hesitancy among GPs differs in prevalence between regions. These variations coincide with north/south trends in population VC. Intervention strategies to restore confidence in vaccines should target GPs and must be adapted to each regional context.