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A review and definition of ‘usual care’ in genetic counseling trials to standardize use in research
- Biesecker, Barbara B;
- Lillie, Sarah E;
- Amendola, Laura M;
- Donohue, Katherine E;
- East, Kelly M;
- Foreman, Ann Katherine M;
- Gilmore, Marian J;
- Greve, Veronica;
- Liangolou, Billie;
- O'Daniel, Julianne M;
- Odgis, Jacqueline A;
- Rego, Shannon;
- Rolf, Bradley;
- Scollon, Sarah;
- Suckiel, Sabrina A;
- Zepp, Jamilyn;
- Joseph, Galen
- et al.
Published Web Location
https://doi.org/10.1002/jgc4.1363Abstract
The descriptor 'usual care' refers to standard or routine care. Yet, no formal definition exists. The need to define what constitutes usual care arises in clinical research. Often one arm in a trial represents usual care in comparison with a novel intervention. Accordingly, usual care in genetic counseling research appears predominantly in randomized controlled trials. Recent standards for reporting genetic counseling research call for standardization, but do not address usual care. We (1) inventoried all seven studies in the Clinical Sequencing Evidence-Generating Consortium (CSER) about how genetic counseling was conceptualized, conducted, and whether a usual care arm was involved; (2) conducted a review of published randomized control trials in genetic counseling, comparing how researchers describe usual care groups; and (3) reviewed existing professionally endorsed definitions and practice descriptions of genetic counseling. We found wide variation in the content and delivery of usual care. Descriptions frequently detailed the content of usual care, most often noting assessment of genetic risk factors, collecting family histories, and offering testing. A minority included addressing psychological concerns or the risks versus benefits of testing. Descriptions of how care was delivered were vague except for mode and type of clinician, which varied. This significant variation, beyond differences expected among subspecialties, reduces the validity and generalizability of genetic counseling research. Ideally, research reflects clinical practice so that evidence generated can be used to improve clinical outcomes. To address this objective, we propose a definition of usual care in genetic counseling research that merges common elements from the National Society of Genetic Counselors' practice definition, the Reciprocal Engagement Model, and the Accreditation Council for Genetic Counselors' practice-based competencies. Promoting consistent execution of usual care in the design of genetic counseling trials can lead to more consistency in representing clinical care and facilitate the generation of evidence to improve it.
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