Outcomes of high risk assessment and clinical screening on cancer among community residents in Jiangbei district of Ningbo city: 2013 – 2017

  Objective  To assess high cancer risk and to analyze results of clinical screening on cancers among community residents in Jiangbei district of Ningbo city, Zhejiang province between 2013 and 2017 and to provide references for early cancer diagnosis and treatment.

  Methods  Using cluster random sampling, we selected totally 28 000 permanent residents aged 40 – 74 years in 5 communities of Jiangbei district for four waves of survey during the period from December 2013 to July 2017. We identified individuals at high risk of lung, upper gastrointestinal, liver, colorectal, and breast cancer among the participants based on the results of the High Cancer Risk Screening Questionnaire and Assessment Software Package developed by National Cancer Center; then we conducted clinical screening examinations among the participants at high cancer risk.

  Results  The overall response rate of the four waves of survey was 81.07%. Totally 6 550 person times of screening examination were conducted and 660 diagnosed or suspected malignancies and precancerous lesions were identified among the 22 700 participants completing the surveys. Among all the responders, the proportion of the individuals assessed at high risk of lung, upper gastrointestinal, liver, colorectal, and breast cancer were 19.82%, 39.01%, 13.29%, 12.21%, and 4.69% and of the individuals at high risk of the 5 malignancies, 45.73%, 16.33%, 61.25%, 18.11%, and 65.35% completing relevant clinical examinations, respectively. The overall detection rate of diagnosed or suspected lung cancer, upper gastrointestinal cancer, diagnosed or suspected liver cancer, colorectal cancer, and 4 or 5 category of breast imaging report and data system (BI-RADS) were 1.55%, 0.69%, 0.11%, 0.40%, and 2.87%, respectively.

  Conclusion  The risk of lung, upper gastrointestinal, liver and colorectal cancer are relatively high among 40 – 74 years old community residents of Jiangbei district of Ningbo city, suggesting that early diagnosis and treatment of cancer should be conducted in the population.