Tercyak Kenneth P, Peshkin Beth N, Demarco Tiffani A, Patenaude Andrea Farkas, Schneider Katherine A, Garber Judy E, Valdimarsdottir Heiddis B, Schwartz Marc D
Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20007-2401, USA.
Genet Test. 2007 Fall;11(3):249-55. doi: 10.1089/gte.2006.0534.
Mothers who participate in genetic testing for hereditary breast/ovarian cancer risk must decide if, when, and how to ultimately share their BRCA1 and BRCA2 (BRCA1/2) test results with their minor-age children. One of the primary aides for mothers in making this decision is cancer genetic counseling. However, counseling is limited in how well it can educate mothers about such decisions without the availability of resources that are specific to family communication and genetic testing per se. In an effort to fill this gap and identify mothers most likely to benefit from such resources, surveys were conducted with 187 mothers undergoing BRCA1/2 testing who had children 8-21 years old. Data were collected weeks after genetic testing but prior to mothers' learning of their test results; quantitative assessments of informational resource needs (i.e., speaking with previous BRCA1/2 testing participants who are parents regarding their experiences, reading educational literature about options and what to expect, speaking with a family counselor, attending a family support group, and self-nominated other resources), testing motivations, decision making vigilance, and decisional conflict regarding communicating test results to children were included. Mothers' most-to-least frequently cited information resource needs were: literature (93.4%), family counseling (85.8%), prior participants (79.0%), support groups (53.9%), and other (28.9%; e.g., pediatricians and psychologists). Seventy-eight percent of mothers were interested in accessing three or more resources. In multivariate regression analyses, testing motivations (beta = 0.35, p = 0.03), decision-making vigilance (beta = 0.16, p = 0.00), and decisional conflict (beta = 0.10, p = 0.00) were associated with mothers' need level; mothers with a greater interest in testing to learn about their children's risks, those with more vigilant decision-making styles, and those with higher decisional conflict had the greatest need. In conjunction with enhanced genetic counseling focusing on family disclosure, educational literature, and psychosocial support may promote improved outcomes.
参与遗传性乳腺癌/卵巢癌风险基因检测的母亲们必须决定是否、何时以及如何最终向其未成年子女告知她们的BRCA1和BRCA2(BRCA1/2)检测结果。癌症遗传咨询是帮助母亲做出这一决定的主要辅助手段之一。然而,在缺乏针对家庭沟通和基因检测本身的特定资源的情况下,咨询在教育母亲做出此类决定方面的效果有限。为了填补这一空白并确定最有可能从此类资源中受益的母亲,对187名接受BRCA1/2检测且育有8至21岁子女的母亲进行了调查。数据是在基因检测数周后、母亲得知检测结果之前收集的;包括对信息资源需求(即与之前接受过BRCA1/2检测的家长交流他们的经历、阅读关于各种选择及预期情况的教育文献、与家庭顾问交谈、参加家庭支持小组以及自我提名的其他资源)、检测动机、决策警惕性以及就向孩子传达检测结果的决策冲突进行定量评估。母亲们提及频率从高到低的信息资源需求依次为:文献(93.4%)、家庭咨询(85.8%)、之前的参与者(79.0%)、支持小组(53.9%)以及其他(28.9%;如儿科医生和心理学家)。78%的母亲有兴趣获取三种或更多资源。在多变量回归分析中,检测动机(β = 0.35,p = 0.03)、决策警惕性(β = 0.16,p = 0.00)和决策冲突(β = 0.10,p = 0.00)与母亲的需求水平相关;对检测以了解孩子风险更感兴趣的母亲、决策风格更警惕的母亲以及决策冲突更高的母亲需求最大。结合强化聚焦于家庭告知的遗传咨询,教育文献和心理社会支持可能会促进更好的结果。