Adjusted Effects of the Tailored Intervention (vs Control) on Postvisit Sociopsychological Factors, Visit Behaviors, and Colorectal Cancer Screening
| Outcome | Entire Sample PEa (95% CI) | Stratified by Ethnicity/Preferred Language | ||
|---|---|---|---|---|
| Non-Hispanic PEa (95% CI) | Hispanic/English PEa (95% CI) | Hispanic/Spanish PEa (95% CI) | ||
| EHBM sociopsychological factorsb | ||||
| Prefer specific test option, % | 6.8 (2.2 to 11.4)c | 5.8 (−0.9 to 12.4) | 11.1 (1.7 to 20.6)d | 4.3 (−3.8 to 12.5) |
| Screening knowledge (total)e | 1.15 (0.86 to 1.44)f | 1.46 (1.04 to 1.87)f | 1.28 (0.70 to 1.86)f | 0.39 (−0.18 to 0.95) |
| Screening self-efficacy | 0.10 (0.03 to 0.18)c | 0.11 (0.00 to 0.22)d | 0.11 (−0.03 to 0.25) | 0.07 (−0.07 to 0.21) |
| Perceived screening barriers | ||||
| FOBT | 0.03 (−0.05 to 0.12) | 0.05 (−0.07 to 0.16) | 0.02 (−0.14 to 0.18) | 0.01 (−0.16 to 0.18) |
| Colonoscopy | 0.02 (−0.06 to 0.09) | 0.02 (−0.09 to 0.13) | −0.02 (−0.18 to 0.13) | 0.07 (−0.10 to 0.24) |
| Stage of readiness for screening | 1.32 (1.05 to 1.66)d | 1.44 (1.03 to 2.00)d | 1.69 (1.07 to 2.67)d | 0.86 (0.53 to 1.38) |
| Visit behaviors, %g | ||||
| Discussion CRC screening | 8.6 (3.1 to 14.2)c | 9.2 (1.4 to 17.0)d | 10.5 (−0.2 to 21.2) | 6.0 (−5.7 to 17.8) |
| Recommendation CRC screening | 6.4 (1.0 to 11.8)d | 8.1% (0.4 to 15.8%)d | 8.3 (−2.0 to 18.5%) | 3.1 (−7.5 to 13.7) |
| CRC screening, %h | 0.5 (−4.3 to 5.3) | −0.3 (−7.4 to 6.8) | −1.3 (−9.3 to 6.8) | 4.3 (−6.1 to 14.6) |
CRC = colorectal cancer; EHBM = expanded health belief model; FOBT = fecal occult blood testing; IMCP = interactive multimedia computer program; PE = parameter estimate; SE = self-efficacy.
↵a Parameter estimates for total knowledge (score range = 0–9) and self-efficacy (score range = 1–5) represent the amount of change in score (ie, points); parameter estimates for specific test preference, discussion and recommendation of colorectal cancer screening, and colorectal cancer screening represent percentage point increases or decreases; parameter estimate for stage of readiness represents the odds of an increase in stage.
↵b All sociopsychological factor models were adjusted for the previsit value of the dependent variable and study recruitment center; the entire sample analyses also were adjusted for ethnicity/language strata.
↵c P <.01.
↵d P <.05.
↵e Analyses examined effects on a total colorectal cancer screening knowledge scale, derived by combining the scores for the knowledge of screening test options and knowledge of screening risks and inconveniences scales.
↵f P <.001.
↵g All visit behavior models were adjusted for study recruitment center; the entire sample analyses also were adjusted for ethnicity/language strata.
↵h Based on review of medical records, available for 1,132 participants (575 IMCP patients, 557 control patients). All receipt of screening models were adjusted for study recruitment center; the entire sample analysis also was adjusted for ethnicity/language strata.