{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,16]],"date-time":"2026-05-16T11:17:07Z","timestamp":1778930227875,"version":"3.51.4"},"reference-count":5,"publisher":"American Public Health Association","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Public Health"],"published-print":{"date-parts":[[2018,5]]},"abstract":"<jats:p> Objectives. To assess the impact of the expansion of Medicaid eligibility in the United States on the opioid epidemic, as measured through increased access to opioid analgesic medications and medication-assisted treatment. <\/jats:p><jats:p> Methods. Using Medicaid enrollment and reimbursement data from 2011 to 2016 in all states, we evaluated prescribing patterns of opioids and the 3 Food and Drug Administration\u2013approved medications used in treating opioid use disorders by using 2 statistical models. We used difference-in-differences and interrupted time series models to measure prescribing rates before and after state expansions. <\/jats:p><jats:p> Results. Although opioid prescribing per Medicaid enrollee increased overall, we observed no statistical difference between expansion and nonexpansion states. By contrast, per-enrollee rates of buprenorphine and naltrexone prescribing increased more than 200% after states expanded eligibility, while increasing by less than 50% in states that did not expand. Methadone prescribing decreased in all states in this period, with larger decreases in expansion states. <\/jats:p><jats:p> Conclusions. The Medicaid expansion enrolled a population no more likely to be prescribed opioids than the base Medicaid population while significantly increasing uptake of 2 drugs used in medication-assisted treatment. <\/jats:p>","DOI":"10.2105\/ajph.2018.304338","type":"journal-article","created":{"date-parts":[[2018,3,22]],"date-time":"2018-03-22T19:55:20Z","timestamp":1521748520000},"page":"642-648","source":"Crossref","is-referenced-by-count":91,"title":["Impact of Medicaid Expansion on Access to Opioid Analgesic Medications and Medication-Assisted Treatment"],"prefix":"10.2105","volume":"108","author":[{"given":"Alana","family":"Sharp","sequence":"first","affiliation":[{"name":"All of the authors are with amfAR, The Foundation for AIDS Research, Washington, DC."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Austin","family":"Jones","sequence":"additional","affiliation":[{"name":"All of the authors are with amfAR, The Foundation for AIDS Research, Washington, DC."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jennifer","family":"Sherwood","sequence":"additional","affiliation":[{"name":"All of the authors are with amfAR, The Foundation for AIDS Research, Washington, DC."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Oksana","family":"Kutsa","sequence":"additional","affiliation":[{"name":"All of the authors are with amfAR, The Foundation for AIDS Research, Washington, DC."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Brian","family":"Honermann","sequence":"additional","affiliation":[{"name":"All of the authors are with amfAR, The Foundation for AIDS Research, Washington, DC."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gregorio","family":"Millett","sequence":"additional","affiliation":[{"name":"All of the authors are with amfAR, The Foundation for AIDS Research, Washington, DC."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"844","reference":[{"key":"bib5","volume-title":"How to Improve Opioid Substitution Therapy Implementation","year":"2014"},{"key":"bib6","doi-asserted-by":"publisher","DOI":"10.15585\/mmwr.mm655051e1"},{"key":"bib7","doi-asserted-by":"publisher","DOI":"10.1080\/08897077.2015.1080208"},{"key":"bib11","doi-asserted-by":"publisher","DOI":"10.1377\/hlthaff.2016.1141"},{"key":"bib27","doi-asserted-by":"publisher","DOI":"10.15585\/mmwr.mm6626a4"}],"container-title":["American Journal of Public Health"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/ajph.aphapublications.org\/doi\/pdf\/10.2105\/AJPH.2018.304338","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,5,10]],"date-time":"2022-05-10T00:43:44Z","timestamp":1652143424000},"score":1,"resource":{"primary":{"URL":"https:\/\/ajph.aphapublications.org\/doi\/full\/10.2105\/AJPH.2018.304338"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,5]]},"references-count":5,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2018,5]]}},"alternative-id":["10.2105\/AJPH.2018.304338"],"URL":"https:\/\/doi.org\/10.2105\/ajph.2018.304338","relation":{},"ISSN":["0090-0036","1541-0048"],"issn-type":[{"value":"0090-0036","type":"print"},{"value":"1541-0048","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,5]]}}}