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Available data

The International Journal of Epidemiology paper China Kadoorie Biobank of 0.5 million people: survey methods baseline characteristics and long-term follow up provides a comprehensive summary of the data collected. The baseline questionnaire and first, second and third resurvey questionnaires provide further details on individual data fields and their storage.  See summary of available blood biomarker data

Data Release Schedule

This schedule includes an anticipated period of exclusive use for the CKB collaborative team in China and the UK following the completion of data collection and processing. During this period the CKB team will seek to engage with external collaborators on topics of particular interest. 

 Data description

China release

Rest of world release

Baseline survey data (cross-sectional data including demographics, socio-economic status, lifestyle behaviours, medical history and physical measurements.) 

available now

available now

Resurvey data (cross-sectional)

1st Resurvey data (c.20,000)           

available now

available now

2nd Resurvey data (c.25,000)

available now

available now

Health outcome data (ICD-10 coded, Censor Date 1/1/2017)

Cause-specific mortality 

available now

available now

Incident disease event

available now

available now

Blood biomarker data

 

 

Various blood biomarker datasets (up to c.20,000)

available now

 Quarter 3, 2023

The questionnaire categories and available cause specific mortality endpoints are shown on this Online Data Request Form (MS Word).