Mainstreaming in Parallel with Ovarian Cancer Tumor Testing to Improve Genetic Testing Uptake
GYNECOLOGIC ONCOLOGY(2024)
Abstract
ObjectivesAlthough genetic testing (GT) is universally recommended for patients with epithelial ovarian cancer (EOC), rates are low (34%). In 1/2019, we implemented mainstreaming—GT in parallel with tumor testing via MSK-IMPACT within oncology clinics. We sought to determine GT rates pre/post-mainstreaming and patient characteristics associated with GT.MethodsPatients with newly diagnosed EOC seen at our institution from 7/1/2015–3/31/2022 were included. Clinical data were abstracted including social determinants of health (SDOH) variables, race/ethnicity, marital status, insurance, language, comorbidities, employment, and Yost index, a measure of socioeconomic status. GT rates were calculated overall and pre−/post-mainstreaming (1/2019). Logistic regression models were fit to identify variables associated with GT.ResultsOf 1742 patients with EOC, 1591 (91%) underwent GT. Rates of GT increased from 87% to 95% after mainstreaming (p < 0.001). Among 151 patients not undergoing GT, major reasons were lack of provider recommendation (n = 76, 50%) and logistical issues (n = 38, 25%) with few declining (n = 14, 9%) or having medical complications preventing GT (n = 7, 4.6%). High-grade serous histology, advanced stage (III/IV), and having a spouse/partner were associated with increased GT uptake (p < 0.01). Among SDOH variables, there were no differences by insurance, Yost score, language, comorbidities, employment, or race/ethnicity. In multivariable models, likelihood of GT increased with mainstreaming, even after adjustment for histology, stage, and marital status (OR 3.77; 95% CI: 2.56–5.66).ConclusionsMainstreaming increased the likelihood of GT in patients with EOC. We found lower testing rates in patients without partners/spouses, non–high-grade serous histology, and early-stage disease, representing potential areas for future interventions.
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Key words
Genetic testing,Ovarian cancer,Mainstreaming,Health disparities,Social determinants of health
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