Objective To evaluate results of colorectal cancer (CRC) screening among urban populations in Beijing from 2014 to 2017 and to provide evidence for establishing appropriate management strategy for CRC screening.
Methods Accord-ing to the protocal of the program of cancer screening in urban China, we conducted cluster sampling surveys among 40 – 69 years old residents in six urban districts of Beijing from 2014 to 2017. A questionnaire risk assessment was administered to all the participants and colonoscopy was performed in the individuals with high CRC risk to detect clinical lesions. The high risk rate, colonoscopy compliance rate and lesion detection rate were calculated for effectiveness evaluation.
Results Among 636 032 residents participating in the screening survey during the 4-year period, 11 000 (17.45%) were assessed with high CRC risk. Of the 4 125 male and 6 875 female participants at high CRC risk, 1 039 and 1 804 had colonoscopy, with an overall compliance rate of 25.85%. For all the colonoscopies, the detection rates of CRC, advanced adenoma, and non-advanced adenoma/polyps were 0.49%, 5.98%, and 23.71%, respectively.
Conclusion The screening survey resulted in relatively high detection rates of CRC-related clinical lesions in early stage, but the colonoscopy compliance rate needs to be increased.
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