Pathways of how health literacy and social support are associated with health outcomes in 17 European countries: Results of mediation analyses

Baron-Epel, Orna and Link, Thomas and Griebler, Robert and Boggild, Henrik and Berens, Eva-Maria and Bíró, Éva and Coy, Deirdre and De Gani, Saskia Maria and Schaeffer, Doris and Sorensen, Kristine and Le, Christopher and Lopatina, Maria and Rowlands, Gillian and Touzani, Rajae and van den Broucke, Stephan and Vincze, Ferenc and Vrdelja, Mitja and Vrbovsek, Sanja and Levin-Zamir, Diane (2025) Pathways of how health literacy and social support are associated with health outcomes in 17 European countries: Results of mediation analyses. PUBLIC HEALTH, 241. pp. 12-18. ISSN 0033-3506

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Abstract

Objectives To estimate and compare (1) how social support (SS) acts as a mediator for the association between health literacy (HL) and health outcomes, and (2) how HL acts as a mediator for the association between SS and health outcomes. Study design Mediation analyses. Methods Data from the Health Literacy Survey 2019 (HLS19) were analyzed including 42,445 participants in 17 European countries. Four mediation models were tested with two health outcomes: self-reported health (SRH) and health-related limitations (Global Activity Limitations Indicator, GALI). In two models, SS was the mediator between HL and SRH and in the other two models HL was the mediator between SS and GALI. Results SS is a significant mediator of the association between HL and SRH in all countries and between HL and GALI in eight countries. Up to 25–30 % of the total effect was mediated by SS. In addition, HL is a significant mediator of the association between SS and SRH in 15 countries and between SS and GALI in eight countries. With regard to SRH, SS may be regarded as the more relevant mediator between HL and SRH; whereas for GALI, HL can be considered the mediating factor between SS and GALI, as the proportions mediated were higher in the respective models in most countries. Conclusions Both HL and SS may serve as significant mediators in the models of both health measures, but to different extents. Planning interventions to mutually improve SS and HL may help communities improve health.

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