Geriatric nursing
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We aimed to explore the relationship between sleep quality and frailty, and depression as a mediator and its interaction with sleep quality on frailty. This was a cross-sectional study among 936 Chinese community-dwelling adults aged≥60 years. ⋯ Older adults with both poor sleep quality and depression had higher risk of frailty than those with poor sleep quality or depression alone. These results implicate multidisciplinary care for frail older adults with poor sleep quality.