Sleep quality among Chinese elderly people: A population-based study.

Little was known about sleep quality among Chinese population. Using data from a population-based survey, we aimed to describe the prevalence of poor sleep quality among Chinese elderly people, to analyze factors associated with poor sleep quality, and to explore the relation between sleep quality and life quality as well as the risk for mental disorders. Data was derived from the Tianjin Mental Health Survey. The 19-item Pittsburg Sleep Quality Index was used to assess sleep quality. Life quality was evaluated using a Chinese version of Quality of Life Scale. To investigate the risk for mental disorders, the Chinese version of General Health Questionnaire was administered. Female gender, older age, low educational attainment, poor subject family economic status, and not having health insurance were significantly associated with elevated risk of poor sleep quality. Poor sleep quality was associated with poor life quality and increased odds of mental disorders. Further studies are warranted for the evaluation of effectiveness of screening tools for sleep problems and the generalization of early screening and diagnosing programs in the nation. Early screening is necessary and appropriate intervention programs should be conducted in the population with high risk.