Abstract
IntroductionThe incidence and prevalence of disability and cognitive impairment, which are age-related, increase as China has become an ageing society. This study aims to establish the Shenzhen Ageing Cohort Study (SZ-ageing) to explore the epidemiological situation, risk factors and biomarkers of disability and cognitive impairment among Chinese elderly individuals.MethodsAbout 3000 participants aged 65 years and older are to be recruited from communities in Shenzhen by using a multistage sampling method. They will receive a baseline investigation between 2022 and 2024. The comprehensive data on disability and cognitive impairment will be collected by using standardised questionnaires, standardised scale assessments, clinical measurements and clinical laboratory tests. Active follow-up surveys with the same content as the baseline investigation will be conducted every 3 years.Ethics and disseminationEthics approval has been obtained from the ethics committee of the Shenzhen Center for Chronic Disease Control (SZCCC-2022-001-01-PJ; 21 February 2022). The research findings will be presented at professional conferences and submitted to peer-reviewed journals.Trial registration numberChinese Clinical Trial Registry (ChiCTR2200060055).
Funder
Medical Scientific Research Foundation of Guangdong Province
The Science and Technology Planning Project of Shenzhen City, Guangdong Province, China
National Natural Science Foundation of China
Sanming Project of Medicine in Shenzhen
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