{"id":4456,"date":"2021-12-02T17:30:14","date_gmt":"2021-12-03T01:30:14","guid":{"rendered":"https:\/\/keck.usc.edu\/news\/medicaid-expansion-linked-to-reductions-in-mortality-according-to-usc-research\/"},"modified":"2025-08-27T15:15:54","modified_gmt":"2025-08-27T22:15:54","slug":"medicaid-expansion-linked-to-reductions-in-mortality-according-to-usc-research","status":"publish","type":"post","link":"https:\/\/keck.usc.edu\/news\/medicaid-expansion-linked-to-reductions-in-mortality-according-to-usc-research\/","title":{"rendered":"Medicaid expansion linked to reductions in mortality, according to USC research"},"content":{"rendered":"\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--article-hero \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--article-hero\"\n    \n      >\n\n    \n  <div class=\"text-container\">\n              \n<div class=\"f--field f--eyebrow\">\n\n    \n  <span>Press Release<\/span>\n\n\n\n<\/div>\n    \n              \n<div class=\"f--field f--page-title\">\n\n    \n      <h1>Medicaid expansion linked to reductions in mortality, according to USC research<\/h1>\n\n\n<\/div>\n    \n              \n<div class=\"f--field f--description\">\n\n    \n  <p>A new Keck School study shows broadening Medicaid access was associated with close to a 4% reduction in adult deaths per year.<\/p>\n\n\n\n<\/div>\n    \n          <div class=\"meta\">\n                  <span class=\"author\">Jeremy Deutchman<\/span>\n        \n                  <span class=\"date\">December 02, 2021<\/span>\n              <\/div>\n    \n              \n<div class=\"f--field f--embed\">\n\n    \n  <div class=\"heateor_sss_sharing_container heateor_sss_horizontal_sharing\" data-heateor-ss-offset=\"0\" data-heateor-sss-href='https:\/\/keck.usc.edu\/news\/medicaid-expansion-linked-to-reductions-in-mortality-according-to-usc-research\/'><div class=\"heateor_sss_sharing_ul\"><a aria-label=\"Facebook\" class=\"heateor_sss_facebook\" 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data-src=\"https:\/\/keck.usc.edu\/news\/wp-content\/uploads\/sites\/68\/2023\/11\/iStock-Medicaid-724x432.jpg\"\n                    data-sizes=\"(min-width:1200px) 75vw, (min-width:768px) 83vw, 100vw\"          class=\"lazyload\"\n        \n                alt=\"Senior Woman and Nurse Home Healthcare Visit\"\n\n        \n                \n                                      \/>\n\n    \n          <figcaption>(Photo\/iStock)<\/figcaption>\n    <\/figure>\n    \n  \n  \n\n<\/div>\n  \n\n  <\/div><\/div>\n\n\n\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--rich-text white\"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--rich-text\"\n    \n      >\n\n    \n  <div class=\"inner-wrapper\">\n        \n<div class=\"f--field f--wysiwyg\">\n\n    \n  <p>In 2010, the newly passed Affordable Care Act \u2014 also known as Obamacare \u2014 mandated that states expand Medicaid eligibility to cover millions of uninsured Americans. But when the Supreme Court made Medicaid expansion optional for states, close to half opted out. Today, close to a quarter of states still have not increased access to Medicaid, and Medicaid expansion is now at the center of a national debate about President Biden\u2019s Build Back Better legislation.<\/p>\n<p>Just published research from the Keck School of Medicine of USC sheds new light on that debate. According to a study in <a href=\"http:\/\/www.thelancet.com\/journals\/lanpub\/article\/PIIS2468-2667(21)00252-8\/fulltext\"><em>The Lancet Public Health<\/em><\/a>, making Medicaid available to more people reduces fatalities. The study shows that expanding Medicaid may result in an overall drop of approximately 3.8 percent in adult deaths each year.<\/p>\n<figure id=\"attachment_124777\" aria-describedby=\"caption-attachment-124777\" style=\"width: 187px\" class=\"wp-caption alignright\"><a href=\"https:\/\/keck.usc.edu\/news\/wp-content\/uploads\/sites\/68\/2023\/11\/Brian-P.-Lee.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-124777\" src=\"https:\/\/keck.usc.edu\/news\/wp-content\/uploads\/sites\/68\/2023\/11\/Brian-P.-Lee-217x300.png\" alt=\"Brian P. Lee\" width=\"187\" height=\"259\" \/><\/a><figcaption id=\"caption-attachment-124777\" class=\"wp-caption-text\"><em>Brian P. Lee<\/em><\/figcaption><\/figure>\n<p>\u201cUsing national data to look for results on a population level, we analyzed five federally-maintained registries covering states that have increased Medicaid access as well as those that have not,\u201d said lead researcher Brian P. Lee, MD, MAS, an assistant professor of clinical medicine at the Keck School. \u201cWe found that Medicaid expansion exerts an influence on mortality rates \u2013 and the magnitude of benefit is correlated with the magnitude of expansion.\u201d<\/p>\n<p>The study found that, among 32 expansion states and 17 non-expansion states, Medicaid expansion was associated with nearly 12 fewer deaths per 100,000 adults annually. The findings could have important public policy implications for improving health outcomes and optimizing quality of care.<\/p>\n<p><strong>Clear benefits, mixed results <\/strong><\/p>\n<p>Implementation of the optional Medicaid expansion began in 2014 and provided health coverage for an additional 12 million Americans. Lee\u2019s study tracked data during the first four years of expansion eligibility, from 2014-2018.<\/p>\n<p>One of the study\u2019s most important findings is that the reduction in all-cause mortality was associated with the state-level reduction in the uninsured population, even in states that did not expand Medicaid.\u00a0 The findings suggest that increasing the number of people with health insurance is the mechanism driving the improvements in mortality associated with Medicaid expansion.<\/p>\n<p>Although the study showed clear benefits from Medicaid expansion, they varied by state and by disease.<\/p>\n<p>\u201cThe reduction in all-cause mortality was most associated with the number of women and non-Hispanic Black residents in each state. States that have chosen not to expand Medicare have higher proportions of poor and Black residents, so they may have the most to gain from adopting Medicaid expansion,\u201d Lee said.<\/p>\n<p>Different illnesses also yielded different results.<\/p>\n<p>\u201cWe showed that Medicaid expansion led to fewer cardiovascular and respiratory deaths, which makes sense: More access to specialty care and prescription drugs likely means fewer deaths related to chronic diseases,\u201d Lee said. \u201cAt the same time, the data reveal that expanding Medicaid did not impact cancer-, infection- or opioid-related deaths, which may not be as influenced by preventative care.\u201d<\/p>\n<p><strong>Bridging the gaps<\/strong><\/p>\n<p>Data on fatalities resulting from complications of opioid use was preliminary, but Lee pointed to it as one of the study\u2019s most interesting findings.<\/p>\n<p>\u201cCertain states \u2013 like Delaware, New Hampshire and New Jersey \u2013 have actually seen an increase in opioid-related mortality associated with Medicaid expansion. Some people have hypothesized that gaining access to prescription pain medication may result in more opioid-related deaths. Our study shows that hypothesis is something that needs to be explored more definitively,\u201d he said.<\/p>\n<p>However, Lee says there may also be other influences at play.<\/p>\n<p>\u201cWe know from experience that, even if they have access to services, patients with substance use disorders may not have access to the right services, or to services in a timely manner,\u201d Lee said. \u201cSo, even after we bridge the insurance gap \u2013 i.e., covering more people with Medicaid or other health plans \u2013 there are probably services gaps that need to be addressed in order to maximize the mortality-related benefits.\u201d<\/p>\n<p><strong>A controlled approach<\/strong><\/p>\n<p>Lee\u2019s study was designed to take multiple factors into consideration. Earlier data had indicated that both the uninsured rate and the mortality rate were already going down prior to Medicaid expansion in 2014. To account for this, Lee and his colleagues conducted a difference-in-differences analysis, controlling for previous trends as a way to establish the accuracy of their findings.<\/p>\n<p>\u201cThis allowed us to assess the absolute difference in all-cause and cause-specific mortality after Medicaid expansion,\u201d he said.<\/p>\n<p>Ultimately, the results may inform the work of policymakers nationally and in countries considering changes in access to public health services.<\/p>\n<p>\u201cContinued Medicaid expansion may be a tool for policymakers to address ongoing wealth- and race-disparities, providing a ladder to improved health outcomes and social mobility for these underserved populations,\u201d Lee said.<\/p>\n<p><strong>About the study<\/strong><\/p>\n<p>In addition to Lee, other authors of the study include Jennifer Dodge, MPH, and Norah Terrault, MD, also from USC.<\/p>\n<p>This study was funded in part by the USC Research Center for Liver Disease (P30DK048522).<\/p>\n\n\n\n<\/div>\n  <\/div>\n\n\n  <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The study shows broadening Medicaid access was associated with close to a 4% reduction in adult deaths per year.<\/p>\n","protected":false},"author":114,"featured_media":4457,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":true,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[6],"tags":[169],"class_list":["post-4456","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-press-release","tag-latest"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Medicaid expansion linked to reductions in mortality, according to USC research<\/title>\n<meta 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