The impact of the Patient Protection and Affordable Care Act on insurance coverage and cancer-directed treatment in HIV-infected patients with cancer in the United States.

Abstract

To the authors' knowledge, little is known regarding the impact of the Patient Protection and Affordable Care Act (ACA) on people living with HIV and cancer (PLWHC), who have lower cancer treatment rates and worse cancer outcomes. To investigate this research gap, the authors examined the effects of the ACA on insurance coverage and receipt of cancer treatment among PLWHC in the United States. HIV-infected individuals aged 18 to 64years oldwith cancer diagnosed between 2011 and 2015 were identified in the National Cancer Data Base. Health insurance coverage and cancer treatment receipt were compared before and after implementation of the ACA in non-Medicaid expansion and Medicaid expansion states using difference-in-differences analysis. Of the 4794 PLWHC analyzed, approximately 49% resided in nonexpansion states and weremore often uninsured (16.7% vs 4.2%), nonwhite (65.2% vs 60.2%), and of low income (36.3% vs 26.9%) compared with those in Medicaid expansion states. After 2014, the percentage of uninsured individuals decreased in expansion states (from 4.9% to 3%; P=.01) and nonexpansion states (from 17.6% to 14.6%; P=.06), possibly due to increased Medicaid coverage in expansion states (from 36.9% to 39.2%) and increased private insurance coverage in nonexpansion states (from 29.5% to 34.7%). There was no significant difference in cancer treatment receipt noted between Medicaid expansion and nonexpansion states. However, the percentage of PLWHC treated at academic facilities increased significantly only in expansion states (from 40.2% to 46.7% [P<.0001]; difference-in-differences analysis: 7.2 percentage points [P=.02]). The implementation of the ACA was associated with improved insurance coverage among PLWHC. Lack of insurance still is common in non-Medicaid expansion states. Patients with minority or low socioeconomic status more often resided in nonexpansion states, thereby highlighting the need for further insurance expansion.