National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China. School of Public Health, Inner Mongolia Medical University, Hohhot, China. Jiangxi Provincial Center for Disease Control and Prevention, Nanchang, China. Heilongjiang Provincial Center for Disease Control and Prevention, Harbin, China. Qinghai Provincial Center for Disease Control and Prevention, Xining, China. Sichuan Provincial Center for Disease Control and Prevention, Chengdu, China. Hunan Provincial Center for Disease Control and Prevention, Changsha, China. Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang, China. Peking University Health Science Centre, The George Institute for Global Health, Beijing, China. Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, UK. National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China wujingcdc@163.com zpuhong@georgeinstitute.org.cn. Diabetes Program, The George Institute at Peking University Health Science Center, Beijing, China wujingcdc@163.com zpuhong@georgeinstitute.org.cn.