期刊
JOURNAL OF GENETIC COUNSELING
卷 27, 期 5, 页码 1157-1166出版社
WILEY
DOI: 10.1007/s10897-018-0233-9
关键词
Huntington disease; Age; Motivations; Genetic counseling; Presymptomatic testing
资金
- Virginia Commonwealth University Huntington Disease Program
- CTSA from the National Center for Advancing Translational Sciences [UL1TR000058]
Huntington disease (HD) is a progressive neurodegenerative disorder. Presymptomatic genetic testing allows at-risk individuals to clarify their risk status. Understanding the characteristics and motivations of individuals seeking HD presymptomatic genetic testing better equips genetic counselors and other healthcare professionals to provide comprehensive and personalized care. The aims of this study were to (1) determine whether the average age when individuals seek presymptomatic HD genetic testing has decreased over time, (2) assess motivations for seeking testing, (3) explore whether there is a relationship between age and motivations, and (4) explore genetic counselors' perceptions of the shift in age. Data from the US HD testing centers (N = 4) were analyzed. A small but statistically significant decrease in age of individuals seeking presymptomatic testing was observed (p = 0.045). HD community members (N = 77) were surveyed regarding presymptomatic testing motivations. Younger individuals were more likely than older individuals to cite To learn whether or not you would develop HD and To make choices about further education or a career compared to older individuals (p < 0.05). Conversely, older individuals more frequently cited To give children a better idea of their risk (p < 0.002). Sixteen percent of genetic counselors surveyed (6/37) perceived a change in age of testing. All of these respondents had provided HD testing for ten or more years and anecdotally believed the age at testing has decreased over time. Study results help providers personalize counseling based on patient's age and serve as a starting point for more research into the relationship between age at testing and motivations for testing.
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