Association of postlunch napping duration and night-time sleep duration with cognitive impairment in Chinese elderly: a cross-sectional study.

ABSTRACT: OBJECTIVE:To analyse the independent and combined associations of postlunch napping duration and night-time sleep duration with risk of cognitive impairment among Chinese elderly. DESIGN:A cross-sectional study. SETTING:We analysed the data from Zhejiang Ageing and Health Cohort, a population-based survey of seven counties located in Zhejiang province in eastern China. PARTICIPANTS:10 740 participants aged 60 years or older were included in final analysis. PRIMARY AND SECONDARY OUTCOME MEASURES:Cognitive impairment was assessed through Mini-Mental State Examination. Data on sleep-related characteristics was collected in the behavioural habits section within the questionnaire. RESULTS:Relative to participants with 1-30 min of postlunch napping, those who did not nap and who napped longer ha

SUBMITTER: Lin JF 

PROVIDER: S-EPMC6303738 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature