Objectives: To describe the prevalence of modifiable risk factors for upper digestive tract cancer (UDTC) and its coprevalence, and investigate relevant influencing factors of modifiable UDTC risk factors coprevalence among residents aged 40-69 years in Yangzhong city, China.
Design: Cross-sectional study.
Participants: A total of 21 175 participants aged 40-69 years were enrolled in the study.