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Abstract
A one-year longitudinal study was conducted investigating the psychological effects of the news of genetic testing for the Huntington disease (HD) gene. Participants were assessed at baseline (before obtaining news of test results) and at three, six, and 12 months after test results on stress-specific symptom measures. Among carriers of the HD gene, a considerable number (55%) showed evidence of neurological impairment at baseline, indicative of HD. Also noteworthy, these individuals had significantly higher psychological symptom scores at baseline than carriers without neurological impairment or noncarriers. Despite this, these individuals were no more aware of their carrier status at baseline than carriers without HD symptoms or noncarriers. Furthermore, the psychological symptom levels of HD carriers with neurological impairment remained elevated across the follow-up assessments. Results for noncarriers and carriers without HD neurological symptoms were consistent with the findings of previous studies indicating that news of genetic testing for the HD gene had limited detrimental impact. The clinical implications of the results are discussed.
View details for Web of Science ID 000171277000002
View details for PubMedID 11745989