Level of HL-SAC by Sex.

Health literacy is a modifiable determinant of health with the potential to enhance public health. An association between health literacy and health-related quality of life has been reported. Although each country has developed their own original health literacy scales, the assessment of adolescent health literacy using the Health Literacy Scale for School-Aged Children has not yet been studied in Japan. In this study, we aimed to clarify the factors associated with adolescents’ health literacy and examine the relationship between health literacy, health-related behaviors, and health-related quality of life in Japan. Participants were recruited by a research company using registered monitors (1st- to 3rd-year junior high school students and their mothers living in Japan in August 2023). Multivariate regression analysis was performed using the total EuroQoL Five Dimensions, Youth Version scores. SAS software was used for data analysis. Overall, 1,854 adolescents and their mothers participated in the online survey. Factors associated with Health Literacy Scale for School-Aged Children included physical activity, sleep conditions in health-related behaviors, parental communication, parental health literacy, and health-related quality of life. Furthermore, parental health literacy was associated to children’s quality of life. Our study showed the influence of family variables, highlighting the need for tailored approaches that consider parents’ health literacy levels.健康素养（health literacy）是可干预的健康影响因素，具备提升公共卫生水平的潜力。已有研究表明健康素养与健康相关生存质量存在关联。尽管各国均已开发出本土的健康素养量表，但在日本尚未有研究采用学龄儿童健康素养量表（Health Literacy Scale for School-Aged Children）开展青少年健康素养评估相关工作。本研究旨在明确日本青少年健康素养的相关影响因素，并探究健康素养、健康相关行为与健康相关生存质量三者间的关联。研究于2023年8月通过某调研公司的注册调研面板招募受试者，对象为居住在日本的初中一年级至三年级学生及其母亲。本研究以欧洲五维健康量表青少年版（EuroQoL Five Dimensions, Youth Version）的总得分作为因变量开展多元回归分析，数据分析采用SAS统计软件完成。最终共有1854对青少年及其母亲参与了本次线上调查。学龄儿童健康素养量表得分的相关影响因素包括健康相关行为层面的体力活动、睡眠状况，父母沟通情况、父母健康素养，以及健康相关生存质量。此外，父母健康素养与子女的生存质量存在显著关联。本研究证实了家庭相关变量的影响作用，凸显了结合父母健康素养水平制定个性化干预方案的必要性。