Table 4.
Postintervention Knowledge Scores: Percentage of Correct Responses by Group
| Question | Correct Answer | Counselor Group (n = 105) | Computer Group (n = 106) | Difference | PValue |
|---|---|---|---|---|---|
| If a woman has a BRCA1 or BRCA2 gene mutation, the chance of passing it down to her child is | 1 in 2 | 73 | 96 | 23 | <.001 |
| Having one’s ovaries removed will definitely prevent ovarian cancer | False | 59 | 80 | 21 | .001 |
| About 1 in 10 women have an altered BRCA1 or BRCA2 gene | False | 50 | 71 | 21 | .002 |
| For a woman in the general population, the chance (or risk) of getting breast cancer at some time during her life is about 12% (1 in 8) | True | 84 | 99 | 15 | <.001 |
| Most women with breast cancer have a BRCA1 or BRCA2 gene mutation | False | 80 | 93 | 13 | .005 |
| A father can pass down a BRCA1 or BRCA2 gene mutation to his daughter | True | 87 | 99 | 12 | .001 |
| All women who have an altered (defective) BRCA1 or BRCA2 gene will get breast cancer | False | 94 | 99 | 5 | .05 |
| A woman who has a sister with an altered BRCA1 gene has a 50% chance (1 in 2) of also having this altered BRCA1 gene | True | 82 | 94 | 12 | .006 |
| About one half of all cases of breast cancer in the United States are related to mutations in the BRCA1 or BRCA2 genes | False | 73 | 85 | 12 | .04 |
| A woman who has her breasts removed can still get breast cancer | True | 78 | 90 | 12 | .02 |
| The purpose of a genetic test for breast cancer susceptibility is to detect breast cancer when it is too small to be detected through other methods, such as breast examination or mammography | False | 82 | 92 | 10 | .04 |
| Genetic testing for breast cancer susceptibility involves which of the following? | None of the above | 90 | 97 | 7 | .04 |
| Prophylactic mastectomy is an operation to remove: | Healthy breast tissue without tumor | 81 | 88 | 7 | .20 |
| A woman who does NOT have a BRCA1 or BRCA2 gene mutation can still get breast cancer | True | 96 | 99 | 3 | .17 |
| A person with a negative BRCA1 or BRCA2 test result may still have a mutation in a breast cancer susceptibility gene | True | 88 | 89 | 1 | .81 |
| A woman who does NOT have an altered BRCA1 or BRCA2 gene can still get breast or ovarian cancer | True | 98 | 99 | 1 | .56 |
| For a woman with a BRCA1 or BRCA2 gene mutation, the chance (or risk) of getting breast cancer at some time during her life is about 1% (1 in 100) | False | 73 | 74 | 0 | .97 |
| A woman who has an altered BRCA1 or BRCA2 gene has a higher risk of ovarian cancer | True | 95 | 95 | 0 | .96 |
| Compared with a woman in the general population, what is the chance (or risk) of getting breast cancer for a woman with a BRCA1 or BRCA2 gene mutation? | Higher | 96 | 92 | −4 | .25 |
| A woman who gets breast cancer at age 70 y is more likely to have an altered BRCA1 or BRCA2 gene than a woman who gets breast cancer at age 40 y | False | 88 | 83 | −5 | .26 |