biostudies-literatureUnknown8(10)Zhang TScience and Technology Bureau of YuhuanZhejiang Provincial Medical and Health Science and Technology Project<h4>Objectives</h4>To investigate the associations between body mass index (BMI), waist-to-hip ratio (WHR) and cognitive function among Chinese elderly.<h4>Design</h4>Cross-sectional study.<h4>Setting</h4>Community.<h4>Participants</h4>Data were obtained from the baseline survey of a community-based cohort in Zhejiang Province, and 9326 persons aged 60 years and older were enrolled.<h4>Primary outcome measures</h4>We investigated the association between BMI and cognition, and then explored the association between WHR and cognition across different quartiles of BMI.<h4>Results</h4>A sample of 9087 persons was used in this study, including 4375 men and 4712 women. Higher WHR increased cognitive impairment risk in those with BMI >25.3 kg/m² (OR (per 0.1 increase) 1.39; 95% CI 1.13 to 1.70). No statistically significant association was found in other BMI categories.<h4>Conclusions</h4>Higher WHR could increase the risk of cognitive impairment among elderly with BMI >25.3 kg/m². Our results suggest that it could be of benefit to the elderly with high BMI to control WHR.BMJ opene022055https://www.ebi.ac.uk/biostudies/studies/S-EPMC6196809biostudies-literatureBody mass index, waist-to-hip ratio and cognitive function among Chinese elderly: a cross-sectional study.PMC6196809He FChen QZhang TZhai YYe CLi FYan RYing XWang XLin JfalseBody mass index, waist-to-hip ratio and cognitive function among Chinese elderly: a cross-sectional study.<h4>Objectives</h4>To investigate the associations between body mass index (BMI), waist-to-hip ratio (WHR) and cognitive function among Chinese elderly.<h4>Design</h4>Cross-sectional study.<h4>Setting</h4>Community.<h4>Participants</h4>Data were obtained from the baseline survey of a community-based cohort in Zhejiang Province, and 9326 persons aged 60 years and older were enrolled.<h4>Primary outcome measures</h4>We investigated the association between BMI and cognition, and then explored the association between WHR and cognition across different quartiles of BMI.<h4>Results</h4>A sample of 9087 persons was used in this study, including 4375 men and 4712 women. Higher WHR increased cognitive impairment risk in those with BMI >25.3 kg/m² (OR (per 0.1 increase) 1.39; 95% CI 1.13 to 1.70). No statistically significant association was found in other BMI categories.<h4>Conclusions</h4>Higher WHR could increase the risk of cognitive impairment among elderly with BMI >25.3 kg/m². Our results suggest that it could be of benefit to the elderly with high BMI to control WHR.2018-01-01T00:00:00Z2018 Oct2026-06-06T20:37:26.938Z2019-03-27T00:04:10ZS-EPMC61968093034111910.1136/bmjopen-2018-022055