Table 3.

Results from bivariate and multivariate analysis to assess the degree of screening compliance by baseline factors and intervention group (N = 632)

Bivariate analysisMultivariate analysisa
HR (95% CI)HR (95% CI)
Subject characteristic(P)(P)
Age (y)
 25—391.00
 40—490.96 (0.52–1.76)
 50—641.14 (0.64–2.05)
 65+1.28 (0.70–2.33)
Male gender0.86 (0.69–1.08)
Education1.14 (0.88–1.48)
 No college (vs. some college or more)
No doctor0.54 (0.30–0.96)
(0.02)
No insurance0.55 (0.27–1.14)
Risk group—HNPCC (vs. high risk)1.15 (0.91–1.45)
Ever had colonoscopy1.74 (1.27–2.38)1.47 (1.06–2.04)
(0.0003)(0.02)
Adherent at baseline1.08 (0.87–1.34)
Plan on having colonoscopy in 1–2 years2.98 (2.37–3.75)2.90 (2.30–3.65)
(<0.0001)(<0.0001)
Risk perception is higher than others without family history1.73 (1.27–2.35)
(0.0003)
Knowledge of risk-appropriate recommendations1.33 (1.07–1.65)
(0.01)
Reported barriers to CRC screening0.73 (0.58–0.92)
Any barrier (yes vs. no)(0.007)
Intervention arm—intensive1.24 (1.01–1.55)1.32 (1.07–1.64)
(0.04)(0.01)
  • aAdjusted for all variables with a significance level of P < 0.05 in the multivariate model.