Table 3. Changes in responses to survey questions before and after carotid ultrasound scans.
| Survey item | All subjects | Carotid scan results not abnormal | Increased CIMT | Carotid plaque present | Increased CIMT or carotid plaque present | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
|
|
|||||||
| Δ | P value | Δ | P value | Δ | P value | Δ | P value | Δ | P value | ||
| 1. | I plan to exercise 30 minutes, 5 times/week. | 0.682 | <.001 | 0.543 | .003 | 0.741 | <.001 | 0.705 | <.001 | 0.714 | <.001 |
| 2. | I plan to lower my cholesterol by changing my diet. | 0.529 | <.001 | 0.333 | .123 | 0.600 | <.001 | 0.592 | <.001 | 0.574 | <.001 |
| 3. | I plan to reduce my cholesterol by taking medications. | 0.521 | <.001 | −0.225 | .275 | 0.806 | <.001* | 0.701 | <.001* | 0.687 | <.001* |
| 4. | Lowering cholesterol is … (harmful – beneficial) | 0.049 | .209 | 0.149 | .206 | 0.000 | .889 | 0.041 | .357 | 0.026 | .494 |
| 5. | I will try to eat at least 5 servings each day of high fiber foods such as: vegetables, oatmeal, whole grain breads and cereals. | 0.398 | <.001 | 0.304 | .051 | 0.378 | <.001 | 0.430 | <.001 | 0.420 | <.001 |
| 6. | I intend to limit saturated and trans fats such as butter, cheese, ice cream, fatty meats, and deep-fried foods in my diet. | 0.494 | <.001 | 0.333 | .137 | 0.550 | <.001 | 0.570 | <.001 | 0.533 | <.001 |
| 7. | I will try to limit sugars, sweetened drinks, juices and starches in my diet. | 0.219 | .002 | 0.000 | .942 | 0.364 | <.001 | 0.267 | .005 | 0.272 | <.001 |
| 8. | I plan to lower my blood pressure by changing my diet. | 0.407 | <.001 | 0.200 | .652 | 0.547 | <.001 | 0.496 | <.001 | 0.453 | <.001 |
| 9. | I plan to reduce my blood pressure by taking medications. | 0.229 | .076 | 0.122 | .761 | 0.386 | .018 | 0.209 | .095 | 0.254 | .048 |
| 10. | Lowering blood pressure is … (harmful – beneficial). | -0.008 | .893 | 0.000 | 1.000 | −0.015 | .966 | 0.041 | .369 | −0.010 | .889 |
| 11. | The likelihood I have heart disease is … (extremely high – extremely low). | 0.454 | <.001 | −0.205 | .614 | 0.585 | <.001* | 0.717 | <.001* | 0.612 | <.001* |
| 12. | The likelihood I will develop heart disease is … (extremely high – extremely low). | 0.274 | .005 | −0.442 | .103 | 0.396 | .005 | 0.593 | <.001* | 0.439 | <.001* |
Δ
, Absolute difference, postscan minus prescan.
*
Significant difference compared with the group with normal results (P < .004, corrected for multiple testing).