The Journal of family practice
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There is controversy about the efficacy and feasibility of flexible fiberoptic sigmoidoscopy (FFS) as a screening test for colorectal cancer in asymptomatic adults aged 50 years and over. Some authorities recommend periodic FFS screening for all such adults, whereas other authorities do not recommend screening FFS at all. ⋯ Knowledge that sex and race are risk factors for colorectal cancer detectable by screening FFS may be important to those physicians who choose the selective screening approach. Further research is necessary to determine whether selective screening for colorectal cancer is efficacious, or whether the race and sex differences noted in this study are important in the etiology of colorectal cancer.