Affordable Care Act Medicaid Expansion was Associated With Reductions in the Proportion of Hospitalizations That are Potentially Preventable Among Hispanic and White Adults.

OBJECTIVE: Using data on 5 years of postexpansion experience, we examined whether the coverage gains from Affordable Care Act Medicaid expansion among Black, Hispanic, and White individuals led to improvements in objective indicators of outpatient care adequacy and quality. RESEARCH DESIGN: For the population of adults aged 45-64 with no insurance or Medicaid coverage, we obtained data on census population and hospitalizations for ambulatory care sensitive conditions (ACSCs) during 2010-2018 in 14 expansion and 7 nonexpansion states. Our primary outcome was the percentage share of hospitalizations due to ACSC out of all hospitalizations ("ACSC share") among uninsured and Medicaid-covered patients. Secondary outcomes were the population rate of ACSC and all hospitalizations. We used multivariate regression models with an event-study difference-in-differences specification to estimate the change in the outcome measures associated with expansion in each of the 5 postexpansion years among Hispanic, Black, and White adults. PRINCIPAL FINDINGS: At baseline, ACSC share in the expansion states was 19.0%, 14.5%, and 14.3% among Black, Hispanic, and White adults. Over the 5 years after expansion, Medicaid expansion was associated with an annual reduction in ACSC share of 5.3% (95% CI, -7.4% to -3.1%) among Hispanic and 8.0% (95% CI, -11.3% to -4.5%) among White adults. Among Black adults, estimates were mixed and indicated either no change or a reduction in ACSC share. CONCLUSIONS: After Medicaid expansion, low-income Hispanic and White adults experienced a decrease in the proportion of potentially preventable hospitalizations out of all hospitalizations.

North Carolina's Medicaid Transformation: the Early Enrollee Experience.

INTRODUCTION: On July 1, 2021, North Carolina's Medicaid Transformation mandatorily switched 1.6 million Medicaid beneficiaries from fee-for-service to managed care plans. We examined the early enrollee experience in terms of engagement in plan selection, provider continuity, use of primary care visits, and assistance with social needs. METHODS: Using electronic health records (EHR) covering pre- and post-transition periods (1/1/2019-5/31/2022) from the largest provider network in western North Carolina, we identified all children and adults under age 65 with continuous Medicaid or private coverage. We conducted primary surveys of a random sample of Medicaid-covered enrollees and obtained self-reported rates of engagement in plan selection, continuity of provider access, and receipt of social need assistance. We used comparative interrupted time series models to estimate the relative change in primary care visits associated with the transition. RESULTS: Our EHR-based study cohorts included 4859 Medicaid and 5137 privately insured enrollees, with 398 Medicaid enrollees in the primary surveys. We found that 77.3% of survey participants reported that the managed care plan they were on was not chosen but automatically assigned to them, 13.1% reported insufficient information about the transition, and 19.2% reported lacking assistance with plan choice. We found that 5.9% were assigned to a different primary care provider. Over 29% reported not receiving any additional social need assistance. The transition was associated with a 7.1% reduction (95% CI, -11.5 to -2.7%) in the volume of primary care visits among Medicaid enrollees relative to privately insured enrollees. CONCLUSIONS: Medicaid enrollees in North Carolina may have had limited awareness and engagement in the transition process and experienced a reduction in primary care visits. As the state's transition process gains a foothold, future policy needs to improve enrollee engagement and develop evidence on healthcare utilization and patient outcomes.

Perceptions of North Carolina's Medicaid Transformation: A Qualitative Study.

BACKGROUND: In 2021, North Carolina switched 1.6 million beneficiaries from a fee-for-service Medicaid model to a managed care system. The state prepared beneficiaries with logistical planning and a communications plan. However, the rollout occurred during the COVID-19 pandemic, creating significant challenges. Little is known about how Medicaid Transformation impacted the experience of Medicaid enrollees. METHODS: We conducted four focus groups (N = 22) with Medicaid beneficiaries from January to March 2022 to gain insight into their experience with Medicaid Transformation. A convenience sample was recruited. Focus groups were recorded, transcribed verbatim, and verified. A codebook was developed using inductive and deductive codes. Two study team members independently coded the transcripts; discrepancies were resolved among the research team. Themes were derived by their prevalence and salience within the data. RESULTS: We identified four major themes: 1) Participants expressed confusion about the signup process; 2) Participants had a limited understanding of their new plans; 3) Participants expressed difficulty accessing services through their plans; and 4) Participants primarily noted negative changes to their care. These findings suggest that Medicaid enrollees felt unsupported during the enrollment process and had difficulty accessing assistance to gain a better understanding of their plans and new services. LIMITATIONS: Participants were recruited from a single institution in the Southeastern United States; results may not be transferable to other institutions. Participants were likely not representative of all Medicaid Transformation beneficiaries; only English-speaking participants were included. CONCLUSION: As the transition process continues, the North Carolina Medicaid program can benefit from integrating recommendations identified by member input to guide strategies for addressing whole-person care.