The CKB is a collaborative project between the CTSU in the Nuffield Department of Population Health at the University of Oxford and the China CDC and the Chinese Academy of Medical Sciences, both in Beijing, China. It is led by a Steering Committee, with study coordinating centres in Oxford, Beijing and each of the 10 study areas in China. An International Scientific Advisory Committee, which is being established, will provide advice on the long-term strategic development of the project. An independent Data Access Committee will oversee requests for collaboration and data access.