Table 2:

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

Guideline	Canadian Task Force on Preventive Health Care, 20017		Canadian Task Force on Preventive Health, current		US Preventive Services Task Force; draft, 201528
Age group and recommendation	> 50 yr	Screen	50–59 yr	Screen (weak)	50–75 yr	Screen (grade A)
			60–74 yr	Screen (strong)	76–80 yr	Conditional screen (grade C)
			> 75 yr	Do not screen (weak)
Modality and interval	gFOBT or FIT	Every 1 or 2 yr (grade A)	gFOBT or FIT	Every 2 yr	gFOBT or FIT	Every year
	Flexible sigmoidoscopy	Every 5 yr	Flexible sigmoidoscopy	Every 10 yr	Flexible Sigmoidoscopy	Every 10 yr plus FIT every year
	Colonoscopy	Insufficient evidence to include or exclude (grade C)	Colonoscopy	Do not recommend	Colonoscopy	Every 10 yr

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