Individual Study / CLAS

Chinese Longitudinal Aging Study

Chinese Longitudinal Aging Study

Initiatives -
Aims of the project: 1. To estimate the prevalence of dementia and other mental disorders in the Chinese elderly. 2. To establish national norms for measures of cognitive functioning, psychological symptoms, quality of life, social support and subjective happiness in the Chinese elderly and assess fluctuations in these parameters, 3. To develop and implement a screening program for mild cognitive impairment and sub-clinical depression, 4. To develop standardized, China-specific treatment protocols for the non-pharmacological treatment of mild cognitive impairment and sub-clinical depression, 5. To establish a bank of biological samples and norms for brain volumes and other measures obtained from MRI assessments for elderly individuals in China. 6. To establish national standards for the early identification, evaluation and treatment of common psychological disorders in the elderly.
Start Year
Ministry of Science and Technology,National Pillar Program, National Key Clinical Disciplines at Shanghai Mental Health Center


Investigators Contacts
  • Dr. Prof. Xiao Shifu
    Shanghai Jiao Tong University


Study design
Population cohort
Follow Up
7 years follow up

Marker Paper

Xiao, S., Li, J., Tang, M., Chen, W., Bao, F., Wang, H., Wang, Y., Liu, Y., Wang, Y., Yuan, Y., Zuo, X., Chen, Z., Zhang, X., Cui, L., Li, X., Wang, T., Wu, W., Zhang, M. Methodology of China's national study on the evaluation, early recognition, and treatment of psychological problems in the elderly: The China Longitudinal Aging Study (CLAS). Shanghai Archives of Psychiatry 2013:25;91-98

PUBMED 24991140


Sources of Recruitment
  • Individuals

Number of participants

Number of participants
Number of participants with biosamples
Supplementary Information
Over 60 year sold


Availability of data and biosamples


Availability of access information

By contacting the study representative