Online health information searching and health literacy among middle-aged and older adults: A cross-sectional study

Given the rapid increase in health information available, health literacy is now more important than ever when searching for health information online. Furthermore, health literacy and online health information searching are reported to be associated with support from others. In this study, we examined the associations of health literacy and social support with online health information searching among individuals in their 50s and 60s. Between March and May 2022, an anonymous self-administered questionnaire was administered among 750 middle-aged and older adults (age 50-69) living in northern Japan. The questionnaire items included personal characteristics, frequency of online health information searching, health literacy domains, and social support. A total of 237 respondents answered all the items (response rate: 31.6%). Multiple logistic regression analysis revealed that communicative health literacy was significantly associated with searching for information about illnesses and health promotion, while critical health literacy was significantly associated with searching for information about medical institutions. Controlling for personal characteristics, health literacy, was associated with online health information searching, suggesting that improving health literacy is important in a digital and information society.