Objective To examine the perception and behavior of early detection for colorectal cancer among residents equal to or greater than 15 years of age in Shanghai.
Methods A cross-sectional questionnaire survey on chronic diseases and related risk factors monitoring was conducted in 2010 in Shanghai, and colorectal cancer related data were retrieved for this study. A total of 15 732 de jure residents were selected by multi-stage cluster sampling.
Results Totally 15 663 individuals provided a completed questionnaire. The awareness rates of colorectal cancer early sign, annual digital rectal examination (DRE), annual fecal occult blood test (FOBT), and colonoscopy every 5 years starting at age 50 among residents ≥ 15 years of age were 44.04%, 22.62%, 20.97%, and 16.83%, respectively, and varied by gender, age, area, and educational level (P < 0.05). Only a small fraction of the residents aged 50-74 years reported having DRE (12.07%), FOBT (6.65%), and colonoscopy (4.82%) before. The percentages of residents who reported having related colorectal cancer early detection tests were varied by age (except the 15-17 years old group) and educational level (P < 0.05); however, no differences were identified between urban and suburban residents. Except for the DRE, no significant differences by gender were found for FOBT and colonoscopy. The time intervals between the time received related tests and the day of survey showed no significant difference by gender, age, area, or education level.
Conclusion The findings indicate poor awareness of early detection of colorectal cancer and low percentage of having related early detection tests among the residents in Shanghai.
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