Evidence map›Paper›PMID 34259321›Full record

ArticleJournal of the National Cancer Institute2021

Early Medicaid Expansion and Cancer Mortality.

Justin M Barnes, Kimberly J Johnson, Eric Adjei Boakye, Lidia Schapira, Tomi Akinyemiju, Eliza M Park, Evan M Graboyes, Nosayaba Osazuwa-Peters

Abstract read
In one paragraph

Article in Journal of the National Cancer Institute, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

29 citing papers in PubMed.

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  6. Medicaid expansion and overall mortality among women with cervical cancer.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026
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  12. Preventable Premature Deaths from the Five Leading Causes of Death in Nonmetropolitan and Metropolitan Counties, United States, 2010-2022.Morbidity and mortality weekly report. Surveillance summaries (Washington, D.C. : 2002) · 2024
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Justin M BarnesDepartment of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA.ORCID 0000-0003-2812-0824
Kimberly J JohnsonBrown School, Washington University in St. Louis, St. Louis, MO, USA.
Eric Adjei BoakyeDepartment of Population Science and Policy, Southern Illinois University School of Medicine, Springfield, IL, USA.
Lidia SchapiraDepartment of Medicine (Oncology), Stanford University School of Medicine, Stanford, CA, USA.
Tomi AkinyemijuDepartment of Population Health Sciences, Duke University School of Medicine, Durham, NC, USA.ORCID 0000-0002-1412-3234
Eliza M ParkComprehensive Cancer Support Program, University of North Carolina, Chapel Hill, NC, USA.
Evan M GraboyesDepartment of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, SC, USA.ORCID 0000-0003-3766-468X
Nosayaba Osazuwa-PetersDepartment of Population Health Sciences, Duke University School of Medicine, Durham, NC, USA.ORCID 0000-0002-1390-9753

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough Medicaid expansion is associated with decreased uninsured rates and earlier cancer diagnoses, no study has demonstrated an association between Medicaid expansion and cancer mortality. Our primary objective was to quantify the relationship between early Medicaid expansion and changes in cancer mortality rates.

methodsWe obtained county-level data from the National Center for Health Statistics for adults aged 20-64 years who died from cancer from 2007 to 2009 (preexpansion) and 2012 to 2016 (postexpansion). We compared changes in cancer mortality rates in early Medicaid expansion states (CA, CT, DC, MN, NJ, and WA) vs nonexpansion states through a difference-in-differences analysis using hierarchical Bayesian regression. An exploratory analysis of cancer mortality changes associated with the larger-scale 2014 Medicaid expansions was also performed.

resultsIn adjusted difference-in-differences analyses, we observed a statistically significant decrease of 3.07 (95% credible interval = 2.19 to 3.95) cancer deaths per 100 000 in early expansion vs nonexpansion states, which translates to an estimated decrease of 5276 cancer deaths in the early expansion states during the study period. Expansion-associated decreases in cancer mortality were observed for pancreatic cancer. Exploratory analyses of the 2014 Medicaid expansions showed a decrease in pancreatic cancer mortality (-0.18 deaths per 100 000, 95% confidence interval = -0.32 to -0.05) in states that expanded Medicaid by 2014 compared with nonexpansion states.

conclusionsEarly Medicaid expansion was associated with reduced cancer mortality rates, especially for pancreatic cancer, a cancer with short median survival where changes in prognosis would be most visible with limited follow-up.

Indexed as

MedicaidPancreatic NeoplasmsAdultBayes TheoremHumansInsurance CoveragePatient Protection and Affordable Care ActUnited States

Identifiers

PMID34259321
PMCPMC8634305

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.