RTI International, Research Triangle Park, Durham, North Carolina, USA.
Department of Health Behavior and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
Genet Med. 2018 Feb;20(2):181-189. doi: 10.1038/gim.2017.93. Epub 2017 Aug 3.
PurposeApplication of whole-exome and whole-genome sequencing is likely to increase in clinical practice, public health contexts, and research. We investigated how parental preference for acquiring information from genome-scale testing is influenced by the characteristics of non-medically actionable genetic disorders in children, as well as whether the preferences differed by gender and between African-American and white respondents.MethodsWe conducted a Web-based discrete-choice experiment with 1,289 parents of young children. Participants completed "choice tasks" based on pairs of profiles describing sequencing results for hypothetical genetic disorders, selected the profile in each pair that they believed represented the information that would be more important to know, and answered questions that measured their level of distress.ResultsKnowing the likelihood that the disorder would develop given a true-positive test result was most important to parents. Parents showed greater interest in learning sequencing results for disease profiles with more severe manifestations. This was associated with greater distress. Differences by gender and race reflected small differences in magnitude, but not direction.ConclusionParents preferred to learn results about genetic disorders with more severe manifestations, even when this knowledge was associated with increased distress. These results may help clinicians support parental decision making by revealing which types of sequencing results parents are interested in learning.
目的
全外显子组和全基因组测序在临床实践、公共卫生和研究中的应用可能会增加。我们研究了儿童非医学上可操作的遗传疾病特征如何影响父母对获取基因组检测信息的偏好,以及这种偏好是否因性别和非裔美国人和白人受访者的不同而有所不同。
方法
我们对 1289 名幼儿的父母进行了基于网络的离散选择实验。参与者根据描述假设遗传疾病测序结果的两个档案完成了“选择任务”,他们选择了每对档案中他们认为更重要的信息,并回答了衡量他们的困扰程度的问题。
结果
知道在真阳性测试结果下疾病发生的可能性对父母来说是最重要的。父母对了解疾病表现更严重的疾病档案的测序结果更感兴趣。这与更大的困扰有关。性别和种族的差异反映了程度上的微小差异,但方向不同。
结论
父母更喜欢了解表现更严重的遗传疾病的结果,即使这些知识与增加的困扰有关。这些结果可以通过揭示父母感兴趣的测序结果类型来帮助临床医生支持父母的决策。