Breast, Cervical, and Colorectal Cancer Screening: Patterns Among Women With Medicaid and Commercial Insurance

Abstract

Introduction: Despite healthcare reforms mandating expanded insurance coverage and reduced out-of-pocket costs for preventive care, cancer screening rates remain relatively static. No study has measured cancer screening rates for multiple tests among non-Medicare patients.

Methods: This retrospective, population-based claims analysis, conducted in 2016-2017, of commercially insured and Medicaid-insured women aged 30-59 years enrolled in IBM MarketScan Commercial and Medicaid Databases (containing approximately 90 and 17 million enrollees, respectively) during 2010-2015 describes screening rates for breast, cervical, and colorectal cancer. Key outcomes were (1) proportion screened for breast, cervical, and colorectal cancer among the age-eligible population compared with accepted age-based recommendations and (2) proportion with longer-than-recommended intervals between tests.

Results: One half (54.7%) of commercially insured women aged 40-59 years (n=1,538,444) were screened three or more times during the 6-year study period for breast cancer; for Medicaid-insured women (n=78,897), the rates were lower (23.7%). One third (43.4%) of commercially insured and two thirds (68.9%) of Medicaid-insured women had a >2.5-year gap between mammograms. Among women aged 30-59 years, 59.3% of commercially insured women and 31.4% of Medicaid-insured women received two or more Pap tests. The proportion of patients with a >3.5-year gap between Pap tests was 33.9% (commercially insured) and 57.1% (Medicaid-insured). Among women aged 50-59 years, 63.3% of commercially insured women and 47.2% of Medicaid-insured women were screened at least one time for colorectal cancer. Almost all women aged 30-59 years (commercially insured, 99.1%; Medicaid-insured, 98.9%) had at least one healthcare encounter.

Conclusions: Breast and cervical cancer screenings remain underutilized among both commercially insured and Medicaid-insured populations, with lower rates among the Medicaid-insured population. However, almost all women had at least one healthcare encounter, suggesting opportunities for better coordinated care.

Figure 1.

Cancer screening rates among commercial and Medicaid populations versus NHIS self-reported data (a) Mammography (b) Cervical cancer screening. NHIS, National Health Interview Survey.

Figure 2.

Co-testing during 2010–2015, (a) Cervical or colorectal screening rates, stratified by evidence of breast cancer screening (b) Breast cancer or colorectal screening rates, stratified by evidence of cervical cancer screening.