AUTHOR=Jiao Dandan , Zhu Yantong , Zhu Zhu , Li Xiang , Zhang Jinrui , Cui Mingyu , Liu Yang , Matsumoto Munenori , Sawada Yuko , Miura Kumi Watanabe , Watanabe Taeko , Anme Tokie TITLE=The trajectory of functional status among older adults with chronic diseases and the association with social relationships JOURNAL=Frontiers in Public Health VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1492489 DOI=10.3389/fpubh.2025.1492489 ISSN=2296-2565