Lerman C, Hughes C, Benkendorf J L, Biesecker B, Kerner J, Willison J, Eads N, Hadley D, Lynch J
Lombardi Cancer Center, Georgetown University Medical Center, Washington, DC 20007, USA.
Cancer Epidemiol Biomarkers Prev. 1999 Apr;8(4 Pt 2):361-7.
We conducted a randomized trial to investigate racial differences in response to two alternate pretest education strategies for BRCA1 genetic testing: a standard education model and an education plus counseling (E + C) model.
Two hundred twenty-eight Caucasian women and 70 African American women with a family history of breast or ovarian cancer were contacted for a baseline telephone interview to assess sociodemographic characteristics, number of relatives affected with cancer, and race before pretest education. Outcome variables included changes from baseline to 1-month follow-up in cancer-related distress and genetic testing intentions, as well as provision of a blood sample after the education session.
African American women were found to differ significantly from Caucasian women in the effects of the interventions on testing intentions and provision of a blood sample. Specifically, in African American women, E + C led to greater increases than education only in intentions to be tested and provision of a blood sample. These effects were independent of socioeconomic status and referral mechanisms. In Caucasian women, there were no differential effects of the interventions on these outcomes. Reductions in cancer-specific distress were evidenced in all study groups. However, this decrease, although not significantly different, was smallest among African American women who received E + C.
In low- to moderate-risk African American women, pretest education and counseling may motivate BRCA1 testing. Further research is needed to explore the mechanisms of impact of the alternate pretest education strategies and to increase the cultural sensitivity of education and counseling protocols.
我们进行了一项随机试验,以调查针对BRCA1基因检测的两种替代预测试教育策略(标准教育模式和教育加咨询(E + C)模式)的反应中的种族差异。
联系了228名有乳腺癌或卵巢癌家族史的白人女性和70名非裔美国女性,进行基线电话访谈,以评估社会人口统计学特征、受癌症影响的亲属数量以及预测试教育前的种族。结果变量包括从基线到1个月随访期间癌症相关困扰和基因检测意向的变化,以及教育课程后提供血样的情况。
发现非裔美国女性与白人女性在干预对检测意向和提供血样的影响方面存在显著差异。具体而言,在非裔美国女性中,E + C比仅教育在检测意向和提供血样方面导致了更大的增加。这些影响与社会经济地位和转诊机制无关。在白人女性中,干预对这些结果没有差异影响。所有研究组都有癌症特异性困扰的减少。然而,这种减少虽然没有显著差异,但在接受E + C的非裔美国女性中最小。
在低至中度风险的非裔美国女性中,预测试教育和咨询可能会促使进行BRCA1检测。需要进一步研究以探索替代预测试教育策略的影响机制,并提高教育和咨询方案的文化敏感性。