Cmar_a_209925 9233..9241

1Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China; 2Department of Infectious Diseases Prevention and Control, Yichang Centers for Diseases Prevention and Control, Yichang, People’s Republic of China; 3Department of Chronic Disease Prevention and Control, Jiang’an District Centers for Disease Preventive and Control, Wuhan, People’s Republic of China; 4Department of Hospital Infection Management, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China Objective: Incidence and mortality rates of malignant tumors in China are higher than global averages, especially for gastrointestinal (GI) cancers. To advance understanding of the epidemiology of GI cancers and to seek clues for cancer control, this study compared the