Document Detail


Exploring the short-term impact of DNA-testing in breast cancer patients: The counselees' perception matters, but the actual BRCA1/2 result does not.
MedLine Citation:
PMID:  21684708     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: Previous studies suggest that learning a DNA-test-result has no direct impact on the medical-decisions and psychological well-being of counselees. Their perception, especially their recollections and interpretations of their cancer-risks and heredity, predict and/or mediate this impact. These studies were criticized for their small range of predictors, mediators, outcomes and contextual factors. We studied the short-term impact of DNA-testing with an extended model. METHODS: Three months after disclosure of BRCA1/2-test-results, we sent counselees a questionnaire about their perception, medical and psychological outcomes, and medical, familial and psychological contexts. 248 affected women participated; 30 had received pathogenic-mutations, 16 unclassified-variants and 202 uninformative-results. RESULTS: The actually communicated genetic-information and the contextual variables predicted the counselees' perception, but did not directly predict any outcomes. The counselees' perception predicted and/or completely mediated the counselees' medical intentions and behavior, physical and psychological life-changes, stigma, mastery, negativity and cancer-worries. Short-term distress was related to the perception not only of their own risks, but also of their relatives' risks and heredity-likelihood. Effect sizes were medium to large. CONCLUSIONS AND IMPLICATIONS: The outcomes of DNA-testing were better predicted by the counselees' perception than by the actually given genetic-information. We recommend genetic-counselors to have tailored, interactive dialogues about the counselees' perception.
Authors:
Joël Vos; Jan C Oosterwijk; Encarna Gomez-Garcia; Fred H Menko; Margriet J Collee; Christi J van Asperen; Anna M Jansen; Anne M Stiggelbout; Aad Tibben
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-17
Journal Detail:
Title:  Patient education and counseling     Volume:  -     ISSN:  1873-5134     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8406280     Medline TA:  Patient Educ Couns     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.
Affiliation:
Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands.
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