Medicaid Expansion Linked to Higher CRC Screening Rates in Latino Adults

Medicaid expansion appears to be modestly improving colorectal cancer (CRC) screening rates among Latino adults, particularly those who prefer English, according to a fresh study published in JAMA Network Open. While gains are encouraging, researchers caution that rates remain low overall and are threatened by ongoing shifts in Medicaid policy and the broader immigration landscape.

The study, led by Nathalie Huguet, PhD, of Oregon Health & Science University, analyzed electronic health record data from over 6,500 Latino and Latina adults aged 50-63 across California, Oregon and several other states. Researchers compared screening rates before and after Medicaid eligibility expansions in California and Oregon in 2021, which extended coverage to adults regardless of immigration status. The analysis focused on individuals who were uninsured at the start of the study period.

Uneven Gains Across Language Groups

The most significant increases in CRC screening prevalence were observed among uninsured, English-preferring Latino and Latina adults. Specifically, screening rates rose by nearly 20 percentage points in this group following the Medicaid expansions. Latino men who preferred English also showed a notable increase of over 16 percentage points. However, the improvements were less pronounced among Spanish-preferring Latinos, with only an 8.6 percentage point increase observed in Latina women during the third year post-eligibility. No significant improvement was seen for Spanish-preferring Latino men.

“We were surprised to see less positive results among Spanish-preferring Latinos, especially when compared to our previous studies, which showed greater improvement for this group,” Huguet told Healio. Huguet suggests that cultural and linguistic barriers may be hindering access to screening for this population, despite increased insurance coverage.

CRC Screening: A Persistent Disparity

Colorectal cancer is the leading cause of cancer-related deaths among Latino and Latina adults in the United States. However, this population consistently experiences lower rates of CRC screening compared to other racial and ethnic groups. Lack of health insurance is a major contributor to this disparity, but even with expanded access to coverage, significant challenges remain.

The study highlights the impact of policy changes like the Affordable Care Act and state-level Medicaid expansions in improving access to preventive care. However, researchers emphasize that simply having insurance is not enough. Factors such as language barriers, cultural beliefs, and fear of financial burden can still prevent individuals from seeking screening.

Study Details and Limitations

The study utilized data from 218 clinics across six states, comparing screening rates from 2018-2019 (pre-eligibility amendment) to 2021-2023 (post-eligibility amendment). The researchers accounted for the disruptions caused by the COVID-19 pandemic by excluding data from March-June 2020 from the primary difference-in-difference analysis, though this period was included in plot profiles.

It’s important to note that the study’s findings are observational and do not prove a causal link between Medicaid expansion and increased CRC screening rates. Other factors, such as increased awareness campaigns or changes in healthcare provider practices, may have also contributed to the observed improvements. The study population was limited to individuals who were uninsured at baseline, which may not be representative of all Latino and Latina adults.

What the Findings Mean for Patients and Providers

The study underscores the importance of addressing systemic barriers to CRC screening among Latino and Latina populations. For patients, Which means understanding the benefits of screening and overcoming any fears or concerns they may have. For healthcare providers, it means proactively identifying and addressing the specific needs of Latino and Latina patients, including providing culturally and linguistically appropriate education and resources. Health care professionals should prioritize identifying strategies that can effectively increase screening rates within this group, according to Huguet.

The Evolving Medicaid Landscape and Future Concerns

Despite the positive trends observed in this study, researchers express concern that recent changes to Medicaid policies and the current immigration climate could undermine these gains. Ongoing efforts to restrict Medicaid eligibility and increase immigration enforcement may create additional barriers to care for vulnerable populations.

“Unfortunately, the broader changes to Medicaid, combined with the current immigration climate, pose a significant risk of undermining these gains, potentially reversing the progress we’ve made in improving access to preventive care for these communities,” Huguet warned.

Looking Ahead: Continued Research and Targeted Interventions

Huguet and her team plan to continue monitoring CRC screening rates among Latino and Latina populations and to investigate the factors that contribute to disparities in access to care. They also hope to identify effective strategies for increasing screening rates, such as leveraging family and peer networks and addressing financial concerns.

Future research will focus on understanding the specific barriers faced by Spanish-preferring Latinos and developing targeted interventions to address these challenges. The researchers also emphasize the need for ongoing advocacy to protect and expand access to affordable healthcare for all.

What’s next: Researchers will continue to emphasize the importance of increasing access to insurance and identifying gaps in care to ensure that those who need preventive services most receive the support they need. Ongoing surveillance of screening rates and policy impacts will be crucial to informing future interventions.