%0 Journal Article %@ 1438-8871 %I JMIR Publications %V 23 %N 3 %P e25042 %T Relationship Between Coronavirus-Related eHealth Literacy and COVID-19 Knowledge, Attitudes, and Practices among US Adults: Web-Based Survey Study %A An,Lawrence %A Bacon,Elizabeth %A Hawley,Sarah %A Yang,Penny %A Russell,Daniel %A Huffman,Scott %A Resnicow,Ken %+ Center for Health Communications Research, Rogel Cancer Center, University of Michigan, North Campus Research Complex, Building 16, 2800 Plymouth Rd, Ann Arbor, MI, 48109, United States, 1 734 763 6099, lcan@med.umich.edu %K internet %K digital health %K eHealth %K eHealth literacy %K coronavirus %K COVID-19 %K knowledge %K conspiracy beliefs %K protective behaviors %K social distancing %K survey %K health communication %K attitude %K behavior %D 2021 %7 29.3.2021 %9 Original Paper %J J Med Internet Res %G English %X Background: During a global pandemic, it is critical that the public is able to rapidly acquire new and accurate health information. The internet is a major source of health information. eHealth literacy is the ability of individuals to find, assess, and use health information available on the internet. Objective: The goals of this study were to assess coronavirus-related eHealth literacy and examine the relationship between eHealth literacy and COVID-19−related knowledge, attitudes, and practices (KAPs). Methods: We conducted a web-based survey of a representative sample of 1074 US adults. We adapted the 8-item eHealth Literacy Scale to develop the Coronavirus-Related eHealth Literacy Scale (CoV-eHEALS) to measure COVID-19−related knowledge, conspiracy beliefs, and adherence to protective behaviors (eg, wearing facial masks and social distancing). Our analyses identified sociodemographic associations with the participants’ CoV-eHEALS scores and an association between the CoV-eHEALS measure and COVID-19 KAPs. Results: The internal consistency of the adapted CoV-eHEALS measure was high (Cronbach α=.92). The mean score for the CoV-eHEALS was 29.0 (SD 6.1). A total of 29% (306/1074) of the survey participants were classified as having low coronavirus-related eHealth literacy (CoV-eHEALS score <26). Independent associations were found between CoV-eHEALS scores and ethnicity (standardized β=–.083, P=.016 for Black participants) and education level (standardized β=–.151, P=.001 for participants with high-school education or lower). Controlling for demographic characteristics, CoV-eHEALS scores demonstrated positive independent associations with knowledge (standardized β=.168, P<.001) and adherence to protective behaviors (standardized β=.241, P<.001) and a negative association with conspiracy beliefs (standardized β=–.082, P=.009). Conclusions: This study provides an estimate of coronavirus-related eHealth literacy among US adults. Our findings suggest that a substantial proportion of US adults have low coronavirus-related eHealth literacy and are thus at a greater risk of lower and less-protective COVID-19 KAPs. These findings highlight the need to assess and address eHealth literacy as part of COVID-19 control efforts. Potential strategies include improving the quality of health information about COVID-19 available on the internet, assisting or simplifying web-based search for information about COVID-19, and training to improve general or coronavirus-specific search skills. %M 33626015 %R 10.2196/25042 %U https://www.jmir.org/2021/3/e25042 %U https://doi.org/10.2196/25042 %U http://www.ncbi.nlm.nih.gov/pubmed/33626015