HLS19-DIGI - a new instrument for measuring digital health literacy: development, validation and associations with determinants and health outcomes in 13 countries

Levin-Zamir, Diane and Van den Broucke, Stephan and Bíró, Éva and Bøggild, Henrik and Bruton, Lucy and De Gani, Saskia Maria and Søberg Finbråten, Hanne and Gibney, Sarah and Griebler, Robert and Griese, Lennert and Guttersrud, Øystein and Klocháňová, Zuzana and Kucera, Zdenek and Le, Christopher and Link, Thomas and Mancini, Julien and Miksova, Dominika and Schaeffer, Doris and Ribeiro da Silva, Carlota and Sørensen, Kristine and Straßmayr, Christa and Telo de Arriaga, Miguel and Vrdelja, Mitja and Pelikan, Jürgen (2025) HLS19-DIGI - a new instrument for measuring digital health literacy: development, validation and associations with determinants and health outcomes in 13 countries. FRONTIERS IN PUBLIC HEALTH, 13. ISSN 2296-2565

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Abstract

Introduction: Digital health information sources are playing an increasingly prominent role in health promotion, public health and in healthcare systems. Consequently, digital health literacy skills are likewise becoming increasingly important. Methods: Using a concept validation approach, the aim of the study was to validate the digital health literacy measure HLS19-DIGI, applied in the European Health Literacy Survey (2019–2021) of the WHO M-POHL network, analyzing data from 28,057 respondents from 13 countries. The instrument is a modified and extended version of the Digital Health Literacy Instrument (DHLI). Results: The scale displayed high internal consistency. Confirmatory factor analysis (CFA) strengthened the hypothesized one-factor structure. In most countries, the data displayed acceptable fit to the unidimensional Rasch partial credit model (PCM). Pearson correlation with a measure of general health literacy showed sufficient discriminant validity, and a social gradient was found. Testing for predictive validity showed that the scale score predicts health-related outcomes. Discussion: The study shows that considerable proportions of the general adult populations across countries in Europe have limited DHL skills. The level of DHL has direct potential consequences for some forms of health service utilization, in some countries. Implications of the study include recommendations for improving digital health literacy, promoting organizational health literacy and quality assurance for digital health information and resources.

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