Closing the Gap: A Comparison of Engagement Interventions to Achieve Equitable Breast Cancer Screening in Rural Illinois

Abstract

Mammography screening rates are typically lower in those with less economic advantage (EA). This study, conducted at an integrated health care system covering a mixed rurality population, assessed the ability of interventions (text messages linking to a Web microsite, digital health care workers, and a community health fair) to affect mammography screening rates and disparity in those rates among different EA populations. Payor type served as a proxy for greater (commercially insured) versus lower (Medicaid insured) EA. 4,342 subjects were included across the preintervention (“Pre”) and postintervention (“Post”) periods. Interventions were prospectively applied to all Medicaid subjects and randomly selected commercial subjects. Applying interventions only to lower EA subjects reversed the screening rate disparity (2.6% Pre vs. −3.7% Post, odds ratio [OR] 2.4 P < 0.01). When intervention arms (“Least,” “More,” “Most”) were equally applied, screening rates in both EA groups significantly increased in the More arm (Medicaid OR = 2.04 P = 0.04, Commercial OR = 3.08 P < 0.01) and Most arm (Medicaid OR 2.57 P < 0.01, Commercial OR 2.33 P < 0.01), but not in the Least (text-only) arm (Medicaid OR 1.83 P = 0.11, Commercial OR 1.72 P = 0.09), although this text-only arm was inadequately powered to detect a difference. In summary, targeting interventions to those with lower EA reversed screening rate disparities, text messaging combined with other interventions improved screening rates in both groups, and future research is needed to determine whether interventions can simultaneously improve screening rates for all without worsening the disparity.

Analysis of a Community Health Screening Program and the Factors Affecting Access to Care

“…As many health fair participants report never - or rarely - receiving preventative health care check-ups, health fairs can provide preventative care for people who would not otherwise receive it [ 7 ]. Health fairs have also been shown to be an effective method for broadening access to cancer screening in medically underserved communities [ 8 , 9 ]. As earlier cancer detection is associated with lower morbidity and mortality, providing free cancer screening is directly beneficial to the health of the communities where these services are offered.…”