Persistent Disparities in Access to Elective Colorectal Cancer Surgery After Medicaid Expansion Under the Affordable Care Act: A Multi-State Evaluation.

MedStar author(s):
Citation: Diseases of the Colon & Rectum. 2023 Mar 30PMID: 37000794Institution: MedStar Health Research InstituteDepartment: MedStar General Surgery Residency | MedStar Georgetown University Hospital/MedStar Washington Hospital CenterForm of publication: Journal ArticleMedline article type(s): Journal ArticleSubject headings: IN PROCESS -- NOT YET INDEXED | Year: 2023Local holdings: Available online from MWHC library: 1997 - present, Available in print through MWHC library: 1999 - 2006ISSN:
  • 0012-3706
Name of journal: Diseases of the colon and rectumAbstract: BACKGROUND: Despite their higher incidence of colorectal cancer, ethnoracial minority and low-income patients have reduced access to elective colorectal cancer surgery. Although the Affordable Care Act's Medicaid expansion increased screening colonoscopies, its effect on disparities in elective colorectal cancer surgery remains unknown.CONCLUSIONS: Despite gains in screening, Medicaid expansion was not associated with reductions in known ethnoracial or income-based disparities in elective colorectal cancer surgery rates. Expanding access to colorectal cancer surgery for underserved populations likely requires attention to provider and health system factors contributing to persistent disparities. Copyright � The ASCRS 2023.DESIGN: Using the 2012-2015 State Inpatient Databases, a retrospective cohort study was conducted.LIMITATIONS: The study was limited to 5 states. While patients may have increased access to cancer screening services and surgery post-expansion, the State Inpatient Database only provides information on patients who underwent surgery.MAIN OUTCOME: Using interrupted time series analysis, the effect of Medicaid expansion on the odds of elective colorectal cancer surgery was assessed.OBJECTIVE: This study assessed the effects of Medicaid expansion on elective colorectal cancer surgery rates overall and by race-ethnicity and income.PATIENTS: This study examined 22,304 adult patients aged 18-64 who underwent colorectal cancer surgery.RESULTS: Elective vs. non-elective surgery rates remained unchanged overall (70.2% vs 70.7%, p = 0.63) and in ethnoracial minorities in expansion states (whites from 72.8% to 73.8% pre to post, p = 0.40 and non-white from 64.0% to 63.1% pre to post, p = 0.67). There was an instantaneous increase in odds of elective surgery in expansion vs. non-expansion states at policy implementation (adjusted OR 1.37, 95% CI, 1.05-1.79, p = 0.02), but it subsequently decreased (combined adjusted OR 0.95, 95% CI, 0.92-0.99, p = 0.03). Elective surgery rates were also unchanged among ethnoracial minorities (instantaneous changes in expansion states, combined effect 1.06; pre-trend 1.01 vs. post trend 0.98) and low-income persons in expansion states (pre trend 1.03 vs. post-trend 0.97) (for all, p > 0.1).SETTINGS: State Inpatient Databases from three expansion (Maryland, New Jersey, Kentucky) and two non-expansion states (Florida, North Carolina) were used.All authors: Al-Refaie WB, Bayasi M, Bello BL, Bouchard ME, Cohen B, DeLia D, Desale S, Zeymo AFiscal year: FY2023Digital Object Identifier: Date added to catalog: 2023-06-28
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Item type Current library Collection Call number Status Date due Barcode
Journal Article MedStar Authors Catalog Article 37000794 Available 37000794

Available online from MWHC library: 1997 - present, Available in print through MWHC library: 1999 - 2006

BACKGROUND: Despite their higher incidence of colorectal cancer, ethnoracial minority and low-income patients have reduced access to elective colorectal cancer surgery. Although the Affordable Care Act's Medicaid expansion increased screening colonoscopies, its effect on disparities in elective colorectal cancer surgery remains unknown.

CONCLUSIONS: Despite gains in screening, Medicaid expansion was not associated with reductions in known ethnoracial or income-based disparities in elective colorectal cancer surgery rates. Expanding access to colorectal cancer surgery for underserved populations likely requires attention to provider and health system factors contributing to persistent disparities. Copyright � The ASCRS 2023.

DESIGN: Using the 2012-2015 State Inpatient Databases, a retrospective cohort study was conducted.

LIMITATIONS: The study was limited to 5 states. While patients may have increased access to cancer screening services and surgery post-expansion, the State Inpatient Database only provides information on patients who underwent surgery.

MAIN OUTCOME: Using interrupted time series analysis, the effect of Medicaid expansion on the odds of elective colorectal cancer surgery was assessed.

OBJECTIVE: This study assessed the effects of Medicaid expansion on elective colorectal cancer surgery rates overall and by race-ethnicity and income.

PATIENTS: This study examined 22,304 adult patients aged 18-64 who underwent colorectal cancer surgery.

RESULTS: Elective vs. non-elective surgery rates remained unchanged overall (70.2% vs 70.7%, p = 0.63) and in ethnoracial minorities in expansion states (whites from 72.8% to 73.8% pre to post, p = 0.40 and non-white from 64.0% to 63.1% pre to post, p = 0.67). There was an instantaneous increase in odds of elective surgery in expansion vs. non-expansion states at policy implementation (adjusted OR 1.37, 95% CI, 1.05-1.79, p = 0.02), but it subsequently decreased (combined adjusted OR 0.95, 95% CI, 0.92-0.99, p = 0.03). Elective surgery rates were also unchanged among ethnoracial minorities (instantaneous changes in expansion states, combined effect 1.06; pre-trend 1.01 vs. post trend 0.98) and low-income persons in expansion states (pre trend 1.03 vs. post-trend 0.97) (for all, p > 0.1).

SETTINGS: State Inpatient Databases from three expansion (Maryland, New Jersey, Kentucky) and two non-expansion states (Florida, North Carolina) were used.

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