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J Public Health Manag Pract. 2011 Nov-Dec;17(6):479-91. doi: 10.1097/PHH.0b013e31821a3f8c.

Cancer stage comparison between dual Medicare-Medicaid eligibles using Medicaid as a supplemental health insurance program and low-income nonduals.

Author information

1
Department of Epidemiology and Biostatistics, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, USA. skoroukian@case.edu

Abstract

BACKGROUND:

Dual-eligibility status for both Medicare and Medicaid is associated with unfavorable cancer stage outcomes. However, given the reduced financial barriers, duals enrolled in Medicaid prior to cancer diagnosis-or those using Medicaid as a supplemental health insurance program (Dual/SHIP)-may have improved access to preventive services compared with low-income nonduals (LI/nondual), therefore, be more likely to be diagnosed at earlier stages of cancers amenable to screening.

OBJECTIVES:

To compare breast, prostate, and colorectal cancer stage at diagnosis between Duals/SHIP and LI/nonduals, adjusting for sociodemographic variables, comorbidities, and nursing home status.

RESEARCH DESIGN:

Cross-sectional study using a database developed by linking records from the Ohio Cancer Incidence Surveillance System with Medicare and Medicaid files, as well as US census data.

SUBJECTS:

Fee-for-service, Ohio residents aged 65 years or older, and diagnosed with incident breast, prostate, or colorectal cancer in 1997-2001.

MEASURES:

(1) Unknown stage/unstaged cancer and (2) distant-stage cancer at diagnosis.

RESULTS:

Duals/SHIP were more likely than LI/nonduals to have unknown stage/unstaged breast cancer (adjusted odds ratio: 1.43, 95% Confidence Interval (CI): 1.02-2.0; P = .035). However, this difference was not seen in prostate or colorectal cancer. In prostate cancer patients, but not in breast or colorectal cancer patients, Dual/SHIP status was associated with distant-stage disease (adjusted odds ratio: 1.74, 95% CI: 1.12-2.70; P = .014). In colorectal cancer patients, dual status was not associated with cancer stage.

CONCLUSION:

The findings show no benefit associated with Medicaid as SHIP. Rather, they indicate that for the most part, cancer stage is comparable between Duals/SHIP and LI/nonduals.

PMID:
21964357
DOI:
10.1097/PHH.0b013e31821a3f8c
[Indexed for MEDLINE]
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