Media Use Behavior Mediates the Association Between Family Health and Intention to Use Mobile Health Devices Among Older Adults: Cross-Sectional Study.

"Conflicts of Interest: None declared."

"This study was conducted with the support of data from the Psychology and Behavior Investigation of Chinese Residents (PBICR). We appreciate all the participants who showed great patience in answering the questionnaires. None of the portions of this article used generative artificial intelligence. This work was supported by the 2023 Guangdong Province Education Science Planning Project (Specialized in Higher Education; 2023GXJK252), the Science and Technology Program of Guangzhou (grant numbers 2023A04J2267 and 2024A04J02668), the Guangdong Basic and Applied Basic Research Foundation (grant number 2021A1515110743), the Health Economics Association of Guangdong Province (grant number 2023-WJMZ-51), the Student Innovation and Entrepreneurship Training Program of Guangdong Province (grant number S202312121283), the Key Laboratory of Philosophy and Social Sciences of Guangdong Higher Education Institutions for Health Policies Research and Evaluation (grant number 2015WSY0010), and the Research Base for Development of Public Health Service System of Guangzhou."