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Table 2:

Summary of recommendations for screening for colorectal cancer (grade of recommendation)

GuidelineCanadian Task Force on Preventive Health Care, 20017Canadian Task Force on Preventive Health, currentUS Preventive Services Task Force; draft, 201528
Age group and recommendation> 50 yrScreen50–59 yrScreen (weak)50–75 yrScreen (grade A)
60–74 yrScreen (strong)76–80 yrConditional screen (grade C)
> 75 yrDo not screen (weak)
Modality and intervalgFOBT or FITEvery 1 or 2 yr (grade A)gFOBT or FITEvery 2 yrgFOBT or FITEvery year
Flexible sigmoidoscopyEvery 5 yrFlexible sigmoidoscopyEvery 10 yrFlexible SigmoidoscopyEvery 10 yr plus FIT every year
ColonoscopyInsufficient evidence to include or exclude (grade C)ColonoscopyDo not recommendColonoscopyEvery 10 yr

Note: FIT = fecal immunochemical testing, gFOBT = guaiac fecal occult blood testing.