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. 2022 Sep 14;16:976753. doi: 10.3389/fnhum.2022.976753

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Copyright © 2022 Gan, Liu, Wang, Shi, Lü, Niu, Meng, Cai, Wang, Chen, Gang and Ji.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Prevalence of all-cause dementia and main subtypes by age, gender, and sleep duration categories. Panel (A) showed the crude prevalence rates of dementia and its subtypes. Panels (B,C) showed the prevalence and 95% CI of dementia and its subtypes by age and sleep duration categories. 95% CI, 95% confidence interval; AD, Alzheimer’s disease; VaD, vascular dementia; DLB, dementia with Lewy bodies; ODs, other dementia.