1Department of Chronic Non-Communicable Diseases Prevention, Jiangxi Province Center for Disease Control and Prevention, Nanchang, Jiangxi, 330029 P. R. China
2Jie Liu and Xu-li Yang equal contributed equally to this work
3The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006 P. R. China
4Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China