Social determinants of physicians’ treatment recommendation in early glottic cancer.

Abstract

65 Background: Glottic cancer is often diagnosed early due to its deleterious effects on the voice. National cancer treatment guidelines recommend larynx preserving treatment, either surgery or radiation, since both modalities have similar rates of local control and recurrence. Without any survival advantage for either treatment modality, physicians may make treatment recommendations based on other clinical or nonclinical factors. Methods: Using the National Cancer Database, a national hospital-based cancer registry data, this retrospective cohort analysis included adult patients, aged 18 years and older, with clinically confirmed diagnosis of early-stage (T1 and T2) glottic cancer between 2004 and 2017 (n = 27,632). The outcome of interest was physicians’ treatment recommendation of surgery or radiation therapy. Main measures included social determinants of health variables, including race/ethnicity, urban/rural status, health insurance status, and income. We further adjusted for covariates, including age and gender. Logistic regression analysis estimated odds of physicians’ recommendation of radiation versus Surgery, based on social determinants of health factors and adjusting for all covariates in the model. Results: More patients received recommendation for radiation treatment vs surgery (78% vs 22%). Female patients were less likely to receive a recommendation of radiation (aOR = 0.90; 95% CI 0.82, 0.98), while Black patients had increased odds of being recommended radiation compared to White patients (aOR = 1.16, 95% CI 1.04, 1.29). Both facility type and location, and patients’ urban vs. rural status were all associated with treatment recommendation, and individuals residing in rural areas had 32% increased odds of being recommendation radiation treatment vs surgery (aOR = 1.32; 95% CI 1.06, 1.64). Conclusions: Radiation treatment is prevalent in early-glottic cancer care, and we found an association between social determinants of health and physician recommendation of treatment. Further research should examine concordance of patient treatment preference vs physician recommendation.