Understanding of BRCA1/2 genetic tests results: the importance of objective and subjective numeracy
Understanding of BRCA1/2 genetic tests results: the importance of objective and subjective numeracy
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DOI:
10.1002/pon.3537
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发表时间:
2014-10-01
期刊:
影响因子:
3.6
通讯作者:
Ozanne, Elissa
中科院分区:
文献类型:
--
作者:
Hanoch, Yaniv;Miron-Shatz, Talya;Ozanne, Elissa
BackgroundThe majority of women (71%) who undergo BRCA1/2 testingdesigned to identify genetic mutations associated with increased risk of cancerreceive results that are termed ambiguous' or uninformative negative'. How women interpret these results and the association with numerical ability was examined.MethodsIn this study, 477 women at increased risk for breast and ovarian cancer were recruited via the Cancer Genetics Network. They were presented with information about the four different possible BRCA1/2 test resultspositive, true negative, ambiguous and uninformative negativeand asked to indicate which of six options represents the best response. Participants were then asked which treatment options they thought a woman receiving the results should discuss with her doctor. Finally, participants completed measures of objective and subjective numeracy.ResultsAlmost all of the participants correctly interpreted the positive and negative BRCA1/2 genetic test results. However, they encountered difficulties interpreting the uninformative and ambiguous BRCA1/2 genetic test results. Participants were almost equally likely to think either that the woman had learned nothing from the test result or that she was as likely to develop cancer as the average woman. Highly numerate participants were more likely to correctly interpret inconclusive test results (ambiguous, OR=1.62; 95% CI [1.28, 2.07]; p