Barrier-focused intervention to increase colonoscopy attendance among nonadherent high-risk populations

Table 4 Variation in intervention effects (n = 1430)

Characteristics	Adjusted OR	95% CI	P value
Age (yr)
40-59	1.000	0.643-1.133	0.273
60-74	0.853
Sex
Male	1.000
Female	0.955	0.706-1.292	0.767
High-risk factors
FDRs diagnosed with CRC	1.778	1.010-3.131	0.046
Personal history of intestinal polyps	3.815	1.994-7.300	0.000
Personal history of other cancers	1.444	0.745-2.799	0.277
Positive for questionnaire1	1.589	0.925-2.727	0.093
Positive for iFOBT	2.718	1.479-4.996	0.001
Characteristics of barriers
With subjective barriers	1.000
With objective barriers	34.590	23.204-51.563	0.000
Without barriers	132.421	59.709-293.681	0.000

¹Positive for questionnaire refers to having ≥ 2 of the following six items: (1) chronic diarrhea; (2) chronic constipation; (3) mucous or bloody stools; (4) personal history of appendicitis or appendectomy; (5) personal history of chronic cholecystitis or cholecystectomy; (6) history of psychiatric trauma. FDRs: First-degree relatives.