Patterns and predictors of adherence to colorectal cancer screening recommendations in Alberta’s Tomorrow Project participants stratified by risk

Table 3 Colorectal cancer screening status at enrollment and follow-up

		Men - Enrollment				Men - Follow-Up				Women - Enrollment				Women - Follow-Up
		Age-only	Family Hx	Personal Hx	Family/Personal Hx	Age-only	Family Hx	Personal Hx	Family/Personal Hx	Age-only	Family Hx	Personal Hx	Family/Personal Hx	Age-only	Family Hx	Personal Hx	Family/Personal Hx
Screening Type	Screening Status	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%
FOBT	Up to date (< 2 years)	20.3	26.0	24.2	32.1	33.8	30.0	32.4	33.9	21.6	22.3	26.0	35.0	35.1	32.2	29.2	34.6
	Not up to date (≥ 2 years)	14.8	22.5	36.5	28.3	19.0	26.8	39.5	37.3	16.3	25.0	32.1	37.0	22.0	27.8	42.2	41.0
	Never	64.9	51.5	39.3	39.6	47.2	43.2	28.1	28.8	62.1	52.7	41.9	28.0	42.9	40.0	28.6	24.3
Endoscopy^a	Up to date (< 5 years)^c	10.2	35.0	68.5	91.9	22.5	58.4	74.2	95.7	13.0	42.5	63.6	88.2	26.1	62.8	71.5	92.9
	Not up to date (≥ 5 years)^c	7.0	8.7	17.2	4.9	8.3	8.2	17.7	4.3	9.2	10.5	23.7	10.9	9.0	7.2	19.5	7.1
	Never	82.8	56.3	14.3	3.2	69.2	33.4	8.1	0.0	77.8	47.0	12.7	0.8	64.9	30.0	9.0	0.0
Overall CRC^b	Up to date	26.8	52.8	74.7	95.8	48.3	70.6	85.4	95.7	30.3	54.1	73.1	92.4	51.6	75.5	76.8	94.5
	Not up to date	15.9	15.7	16.2	1.6	15.9	11.3	11.3	4.3	17.9	18.0	19.5	6.7	16.8	10.6	18.9	5.5
	Never	57.3	31.5	9.1	3.2	35.8	18.1	3.3	0.0	51.8	27.9	7.4	0.9	31.6	13.9	4.3	0.0

^aEndoscopy screening status at follow-up was created by combining colonoscopy and sigmoidoscopy data following recommendations specific to stratum risk
^bOverall CRC screening status was derived from either FOBT or endoscopy screening status, whichever was more up to date. FOBT, fecal occult blood test; CRC, colorectal cancer screening
^cAt enrollment, 5 years was used as the recommended screening timeframe for endoscopy screening status for all participants, whereas at follow-up, 10 years was used as the recommended timeframe for colonoscopy in Age-only and a subgroup of FamilyHx participants, while 5 years was used for colonoscopy for the remaining FamilyHx participants and the high and highest risk participants, and for sigmoidoscopy for all participants
Stratum Descriptions:
Age-only - participants who should commence screening due to age (50–74 years); considered average-risk
FamilyHx - participants with a first-degree relative diagnosed with CRC; considered moderate-risk
PersonalHx - participants with a personal history of a bowel condition or polyps; considered high-risk
Family/PersonalHx - participants with first-degree relative diagnosed with CRC and personal history of a bowel condition or polyps; considered highest-risk

ISSN: 1471-2458