The urban community residents are the key in carrying out preventing and controlling work of colorectal cancer screening in China.

城市社区居民是我国大肠癌防治的重点人群，开展城市居民的大肠癌筛查是我国大肠癌预防控制的重要内容。

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BACKGROUND: Guaiac-based fecal occult blood tests (FOBTs) for colorectal cancer screening are not specific for human hemoglobin and have low sensitivity.

背景：以愈创木脂为试剂的粪便潜血实验（FOBTs）用于结直肠癌的筛查中，不仅对人血红蛋白特异性不高而且敏感性也很低。

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ASGE screening guidelines recommend that, beginning at age 50, asymptomatic men and women at average risk for developing colorectal cancer should begin colorectal cancer screening.

ASGE筛查指南推荐，刚年满50岁、有发生结直肠癌一般风险的无症状性男性和女性，应该开始结直肠癌筛查。

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(SAYING) "Also colorectal cancer screening another very important tool that can detect changes in the colon prior to the incurrence of the cancer."

VOA: standard.2010.03.25

"Colorectal cancer screening saves lives because it detects cancer at early stages when treatment is more effective, and it also removes precancerous lesions, " said Jemal.

CNN: Cancer death rate dropped nearly 20 percent in 15 years

For colorectal cancer, screening for which is recommended for men and women between 50 and 75 years of age, the study found Hispanics were the least likely to report regular screenings (46.5%), followed by Asians (46.9%), African-Americans (55%), and whites (59.8%).

FORBES: Cancer Screenings Remain Low for Minorities and the Uninsured, CDC Report Says

According to one study, if people got just five types of preventive services when they needed to -- colorectal and breast cancer screening, flu vaccines, counseling to help them quit smoking, and regular aspirin use to prevent strokes -- we could avert 100, 000 deaths each year.

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