Table 1.
Percentage of individuals who received correct scores by question over time.
| Items | Time 1 | Time 2 | Time 3 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| No GT | GT | Total | No GT | GT | Total | No GT | GT | Total | |
| 1. All women who have an altered breast cancer gene get cancer. | 65.0% | 58.11% | 60.4%* | 85.0% | 71.62% | 75.0% | 75.0% | 79.45% | 78.1%*** |
| 2. Early-onset breast cancer is more likely due to an altered breast cancer gene than late-onset breast cancer. | 30% | 24.32% | 27.1%* | 60.0% | 59.72% | 57.3%** | 25.0% | 39.79% | 36.5% |
| 3. A father can pass down an altered breast cancer gene to his children. | 75% | 59.46% | 62.5%* | 75.0% | 90.54% | 87.5%** | 68.42% | 79.73% | 76.0%*** |
| 4. Having ovaries removed will definitely prevent ovarian cancer. | 30% | 31.51% | 31.3%* | 40.0% | 45.95% | 44.8% | 40.0% | 41.89% | 41.7% |
| 5. One half of all breast cancer cases occur in women who have inherited an altered breast cancer gene. | 35.0% | 28.38% | 30.2%* | 55.0% | 50.0% | 51.0% | 42.11% | 48.65% | 46.9%*** |
| 6. One in 10 women have inherited an altered breast cancer gene. | 15.0% | 13.51% | 14.6%* | 15.0% | 31.08% | 27.1% | 20.0% | 22.54% | 21.9%*** |
| 7. Ovarian cancer screening tests often do not detect cancer until after it spreads. | 30% | 39.19% | 37.5%* | 55.0% | 71.23% | 66.7% | 45.0% | 64.86% | 60.4% |
| 8. The sister of a woman with an altered breast cancer gene has a 50% risk of having the altered gene. | 45.0% | 58.11% | 55.2%* | 75.0% | 81.08% | 79.2% | 78.95% | 75.68% | 75.0%*** |
| 9. A woman who does not have an altered breast cancer gene can still get breast cancer. | 95.0% | 85.14% | 87.5% | 95.0% | 95.95% | 95.8% | 100% | 94.52% | 93.8%*** |
| 10. A woman who does not have an altered breast cancer gene can still get ovarian cancer. | 95.0% | 77.03% | 80.2%* | 95.0% | 91.89% | 92.7% | 94.74% | 89.19% | 89.6%*** |
| a11. A woman who has had her breasts removed can still get breast cancer. | 55% | 54.05% | 55.2% | 60.0% | 63.51% | 63.5% | 45.0% | 71.62% | 64.6% |
| a12. The best candidate for BRCA1/2 testing is someone who has had breast or ovarian cancer. | 35% | 36.49% | 37.5%* | 45.0% | 67.57% | 62.5% | 30.0% | 62.16% | 55.2%*** |
| a13. Women who have BRCA1/2 testing will always get positive or negative results. | 15.0% | 18.92% | 17.7%* | 50.0% | 63.51% | 59.4% | 47.37% | 66.22% | 60.4%*** |
| a14. Removing the ovaries (oophorectomy) reduces the risk of breast cancer. | 15.0% | 20.55% | 18.8% | 10.0% | 25.68% | 21.9% | 10.0% | 31.08% | 27.1% |
| a15. Breast cancer patients with an altered BRCA1 or BRCA2 gene are more likely to develop a second breast cancer. | 45.0% | 47.30% | 47.9%* | 60.0% | 75.68% | 72.9% | 52.63% | 63.51% | 60.4% |
Notes:
a
Items added by the investigators.
*
Significant difference at p ≤ .05 between time 1 and 2.
**
Significant difference at p ≤ .05 between time 2 and 3.
***
Significant difference at p ≤ .05 between time 1 and 3.