CONCLUSION
Among patients with advanced stage (T4a) OCSCC, insurance status appears to significantly predict the likelihood of receiving definitive cancer treatment. This statistically significant association persists after adjusting for several clinically relevant confounders. Our findings also serve as evidence that healthcare insurance reform- such as through the 2014 ACA- can be an effective means of reducing these inequalities. Further large-scale retrospective or prospective studies should be conducted to confirm the existence of this relationship between insurance status and treatment type, and the effect of Medicaid expansion.