Diversity of attitudes towards complementary and alternative medicine (CAM) and vaccines: A representative cross-sectional study in France

How much does endorsement of complementary and alternative medicine (CAM) correlate with negative attitudes towards vaccines? One of the difficulties of analysing the relationship between attitudes to CAM and attitudes towards vaccines rests in the complexity of both. Which form of CAM endorsement is associated with what type of reticence towards vaccines? While the literature on the relationship between CAM and attitudes towards vaccines is growing, this question has not yet been explored. In this study we present the results of a survey conducted in July 2021 among a representative sample of the French mainland adult population (n = 3087). Using cluster analysis, we identified five profiles of CAM attitudes and found that even among the most pro-CAM group, very few respondents disagreed with the idea that CAM should only be used as a complement to conventional medicine. We then compared these CAM attitudes to vaccine attitudes. Attitudes to CAM had a distinct impact as well as a combined effect on attitudes to different vaccines and vaccines in general. However, we also found a) that attitudes to CAM provide a very limited explanation of vaccine hesitancy and b) that, among the hesitant, pro-CAM attitudes are often combined with other traits associated with vaccine hesitancy such as distrust of health agencies, radical political preferences and low income. Indeed, we found that both CAM endorsement and vaccine hesitancy are more prevalent among the socially disadvantaged. Drawing on these results, we argue that, to better understand the relationship between CAM and vaccine hesitancy, it is necessary to look at how both can reflect lack of access and recourse to mainstream medicine and distrust of public institutions.

Automated summary

This study examined the relationship between endorsement of complementary and alternative medicine (CAM) and attitudes towards vaccines. The results showed that even among those who endorsed CAM, very few disagreed with the idea that CAM should be used as a complement to conventional medicine. Attitudes towards CAM had a distinct impact on attitudes towards different vaccines, but they only provided a limited explanation for vaccine hesitancy, which was often associated with distrust of health agencies, radical political preferences, and low income. CAM endorsement and vaccine hesitancy were more prevalent among socially disadvantaged individuals, suggesting a lack of access to mainstream medicine and distrust of public institutions.