Sample details

MEHECS is a multicenter prospective cohort led by the China CDC National Center for Chronic and Non-communicable Disease Control and Prevention, built upon the National Basic Public Health Services annual health examination program for older adults. Covering five cities (Wuhan, Luzhou, Zunyi, Shenzhen, and Zaozhuang), it enrolled over 3.71 million participants aged 65+ at baseline, with mortality outcomes linked via the national death registration system and repeated annual measurements available for over 70% of participants. It serves as the largest and most comprehensive real-world data platform for investigating health trajectories, chronic disease burden, and health service effectiveness in the Chinese elderly population

Study design

Multicenter multistage prospective cohort study

Number of participants at first data collection

3,716,364

Age at first data collection

65 years and older, mean 70.9

Participant sex

MF

Representative sample

Not set

Sample features

Elderlybalanced genderpredominantly marriednormal BMI

Dataset details

Country

China

Year of first data collection

2012

Primary institutions

National Center for Chronic and Non-communicable Disease Control and Prevention (China CDC)

Links

Primary URL

Funders

National Key Research and Development Program

Ongoing?

Not set

Data types collected

Cognitive function assessmentEmotional state assessmentADL self-reportSelf-rated health