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01.03.2018 | Original Research | Ausgabe 5/2018

Journal of Genetic Counseling 5/2018

Why Patients Decline Genomic Sequencing Studies: Experiences from the CSER Consortium

Journal of Genetic Counseling > Ausgabe 5/2018
Laura M. Amendola, Jill O. Robinson, Ragan Hart, Sawona Biswas, Kaitlyn Lee, Barbara A. Bernhardt, Kelly East, Marian J. Gilmore, Tia L. Kauffman, Katie L. Lewis, Myra Roche, Sarah Scollon, Julia Wynn, Carrie Blout
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Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s10897-018-0243-7) contains supplementary material, which is available to authorized users.


Clinical and research settings are increasingly incorporating genomic sequencing (GS) technologies. Previous research has explored reasons for declining genetic testing and participation in genetic studies; however, there is a dearth of literature regarding why potential participants decline participation in GS research, and if any of these reasons are unique to GS. This knowledge is essential to promote informed decision-making and identify potential barriers to research participation and clinical implementation. We aggregated data from seven sites across the National Institutes of Health’s Clinical Sequencing Exploratory Research (CSER) consortium on each project’s procedures for recruitment, and rates of and reasons for decline. Data were analyzed using descriptive statistics. The decline rate for enrollment at the seven CSER sites ranged from 12 to 64% (median 28%) and varied based on age and disease status. Projects differed in their protocols for approaching potential participants and obtaining informed consent. Reasons for declining GS research were reported for 1088 potential participants. Commonly cited reasons were similar to those reported for clinical single gene testing and non-GS genetic research. The most frequently cited reason for decline was study logistics (35%); thus, addressing logistical barriers to enrollment may positively impact GS study recruitment. Privacy and discrimination concerns were cited by 13% of decliners, highlighting the need for researchers and providers to focus educational efforts in this area. The potential psychological burden of pursuing and receiving results from GS and not wanting to receive secondary findings, a concern specific to GS, have been cited as concerns in the literature. A minority of potential participants cited psychological impact (8%) or not wanting to receive secondary findings (2%) as reasons for decline, suggesting that these concerns were not major barriers to participation in these GS studies. Further research is necessary to explore the impact, if any, of different participant groups or study protocols on rates of decline for GS studies. Future studies exploring GS implementation should consider using standardized collection methods to examine reasons for decline in larger populations and more diverse healthcare settings.

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Supplementary document 1 provides the survey distributed to participating CSER sites to capture information related to rate of decline, study protocol for approaching and consenting participants and reasons for potential participant decline. (PDF 673 kb)
Supplementary document 2 provides project materials used by sites who collected reasons for decline responses in multiple-choice format. (PDF 474 kb)
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