Table 3.
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.
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.
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.
P <.01.
P <.05.
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.
P <.001.
All visit behavior models were adjusted for study recruitment center; the entire sample analyses also were adjusted for ethnicity/language strata.
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.