Table 3. Predictors of Stage of Adoption for FOBT from Hierarchical Modelinga.
| Predictor Variablesb | FOBT Stage of Adoption | |||
|---|---|---|---|---|
|
| ||||
| Step 1 OR (95% CI) |
Step 2 OR (95% CI) |
Step 3 OR (95% CI) |
Step 4 OR (95% CI) |
|
| Demographics | ||||
| Age | 1.04 (1.10-1.06)** | 1.04 (1.01-1.06)** | 1.04 (1.01-1.06)** | 1.04 (1.01-1.06)** |
| Male | 1.86 (1.32-2.63)** | 1.68 (1.17-2.41)** | 1.72 (1.19-2.48)** | 1.70 (1.16-2.49)** |
| Income: 15K-30K vs. < 15K | 0.97 (0.69-1.35) | 0.98 (0.70-1.37) | 0.90 (0.64-1.27) | 0.82 (0.57-1.16) |
| > 30K vs. < 15K | 1.15 (0.73-1.83) | 1.23 (0.77-1.96) | 1.06 (0.66-1.07) | 1.03 (0.63-1.69) |
| Insurance | 1.00 (0.62-1.63) | 1.01 (0.62-1.66) | 1.01 (0.62-1.67) | 0.94 (0.57-1.57) |
| VA site | 3.77 (2.47-5.77)** | 3.92 (2.56-6.02)** | 3.46 (2.25-5.34)** | 2.80 (1.76-4.44)** |
|
| ||||
| Clinical Variables | ||||
| BMI | 0.98 (0.96-1.00) | 0.99 (0.97-1.01) | 0.98 (0.96-1.01) | |
| Personal History of Cancer | 0.38 (0.20-0.71)** | 0.38 (0.20-0.71)** | 0.37 (0.19-0.70)** | |
|
| ||||
| CRC Health Beliefs & Knowledge | ||||
| Perceived Risk | 1.05 (0.92-1.20) | 1.06 (0.92-1.21) | ||
| FOBT Benefits | 1.20 (0.92-1.56) | 1.15 (0.88-1.50) | ||
| FOBT Barriers | 0.79 (0.63-0.98)* | 0.79 (0.63-0.99)* | ||
| FOBT Self-efficacy | 1.79 (1.28-2.49)** | 1.59 (1.13-2.23)** | ||
|
| ||||
| Social Support | ||||
| Married/Partnered | 1.23 (0.88-1.72) | |||
| Family/friend Encouragement | 1.64 (1.18-2.29)** | |||
| Provider Recommendation | 2.05 (1.48-2.85)** | |||
|
| ||||
| Generalized R2 | 0.126 | 0.140** | 0.169** | 0.202** |
Abbreviations: BMI, body mass index; CI, confidence interval; CRC, colorectal cancer; FOBT, fecal occult blood test; K, thousand; OR, odds ratio.
a
* p<.05, ** p<.01
b
Variables with p≤.2 from the bivariate analysis.