AUTHOR=Hu Yuexia , Xia Xin , Li Huixian , Xie Yuqing , Tian Xin , Li Yun , Yue Jirong , Dong Birong , Wang Yanyan TITLE=The association between sleep quality and cognitive impairment among a multi-ethnic population of middle-aged and older adults in Western China: a multi-center cross-sectional study JOURNAL=Frontiers in Public Health VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1500027 DOI=10.3389/fpubh.2025.1500027 ISSN=2296-2565