Prevalence and associated factors of insomnia among adults in Anhui Province, China

Background Insomnia is a highly prevalent sleep disorder with substantial public health implications. However, comprehensive data on its prevalence and associated factors in Anhui Province, China, are limited. This study aimed to investigate the prevalence of insomnia and its key influencing factors among adults in Anhui Province. Methods A population-based cross-sectional study was conducted in 2021 across 15 cities in Anhui Province, involving 8,317 adults aged ≥18 years selected via multi-sta