McKayla J Riggs1, Bin Huang2, Quan Chen2, Therese Bocklage3, Marissa R Schuh4, Ming Poi5, John L Villano6, Michael J Cavnar7, Susanne M Arnold6, Rachel W Miller1, Frederick R Ueland1, Jill M Kolesar8. 1. Department of Obstetrics and Gynecology/Division of Gynecologic Oncology, University of Kentucky, Lexington, Kentucky. 2. Biostatistics and Bioinformatics Shared Resource Facility, Markey Cancer Center, Lexington, Kentucky. 3. Department of Pathology, University of Kentucky, Lexington, Kentucky. 4. Precision Medicine Center, Markey Cancer Center, Lexington, Kentucky. 5. M2GEN, Tampa, Florida. 6. Department of Hematology & Oncology, Internal Medicine, University of Kentucky, Lexington, Kentucky. 7. Department of Surgery/Division of Surgical Oncology, University of Kentucky, Lexington, Kentucky. 8. Department of Pharmacy, University of Kentucky, Lexington, Kentucky.
Abstract
PURPOSE: Large-scale genomic sequencing studies are driving oncology drug development. However, rural populations, like those residing in Appalachian Kentucky, are underrepresented in these efforts. In this study, we determined the frequency of participation, reasons for nonparticipation, and factors predicting the decision to participate in the Total Cancer Care (TCC) prospective genomic cohort study. METHODS: A total of 1,188 patients were invited to enroll in the TCC prospective cohort from December 2018 to May 2019. Declining patients were queried for their rationale for nonparticipation and their patient data were obtained from the Kentucky Cancer Registry (KCR). Logistic regression was used to assess the association between characteristics and study participation. The association of study participation with survival was modeled with Cox proportional-hazards regression. RESULTS: 90.9% (1,081) patients consented to participate. In multivariate analysis, factors significantly associated with participation were age, gender, treatment status, and race. Though overall more women participated in the study, men were more likely to participate than women when invited (OR 1.57). Younger, Caucasian individuals who had received chemotherapy, but not surgery, were also more likely to participate. Patients in the Kentucky Appalachian cohort were primarily rural, had less educational attainment, and lower socioeconomic status. Kentucky Appalachian patients were no less likely to enroll in TCC than non-Appalachian patients. Consented individuals had higher overall survival compared to those who declined. CONCLUSION: Though minorities, those with low socioeconomic status, and rural populations are underrepresented in genomic studies, they were no less likely to participate when given the opportunity, and participation was associated with better clinical outcomes.
PURPOSE: Large-scale genomic sequencing studies are driving oncology drug development. However, rural populations, like those residing in Appalachian Kentucky, are underrepresented in these efforts. In this study, we determined the frequency of participation, reasons for nonparticipation, and factors predicting the decision to participate in the Total Cancer Care (TCC) prospective genomic cohort study. METHODS: A total of 1,188 patients were invited to enroll in the TCC prospective cohort from December 2018 to May 2019. Declining patients were queried for their rationale for nonparticipation and their patient data were obtained from the Kentucky Cancer Registry (KCR). Logistic regression was used to assess the association between characteristics and study participation. The association of study participation with survival was modeled with Cox proportional-hazards regression. RESULTS: 90.9% (1,081) patients consented to participate. In multivariate analysis, factors significantly associated with participation were age, gender, treatment status, and race. Though overall more women participated in the study, men were more likely to participate than women when invited (OR 1.57). Younger, Caucasian individuals who had received chemotherapy, but not surgery, were also more likely to participate. Patients in the Kentucky Appalachian cohort were primarily rural, had less educational attainment, and lower socioeconomic status. Kentucky Appalachian patients were no less likely to enroll in TCC than non-Appalachian patients. Consented individuals had higher overall survival compared to those who declined. CONCLUSION: Though minorities, those with low socioeconomic status, and rural populations are underrepresented in genomic studies, they were no less likely to participate when given the opportunity, and participation was associated with better clinical outcomes.
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