{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,27]],"date-time":"2026-07-27T10:17:27Z","timestamp":1785147447636,"version":"3.55.0"},"reference-count":0,"publisher":"S. Karger AG","issue":"4","license":[{"start":{"date-parts":[[2018,1,1]],"date-time":"2018-01-01T00:00:00Z","timestamp":1514764800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[2018,1,1]],"date-time":"2018-01-01T00:00:00Z","timestamp":1514764800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Eur Addict Res"],"published-print":{"date-parts":[[2018]]},"abstract":"<jats:p>Heroin users in opioid agonist treatment (OAT) show markedly reduced heroin consumption, less crime and a lower mortality rate. However, the extent of long-term OAT participation over subsequent treatment episodes remains unclear. We analysed the annual proportion of patients in treatment\u00a0(at least 1 day) since the start of first OAT in 4 European regions: Barcelona (BA) 1996\u20132012: 8,602 patients; Czech \u00adRepublic (CZ) 2000\u20132014: 4,377 patients; Netherlands (NL) 1994\u20132014: 33,235 patients, Zurich (ZU) 1992\u20132015: 11,795. We estimated the long-term decline of treatment need due to mortality or abstinence and also a \u201cnuisance\u201d short-term decline until the equilibrium level of cycling in and out of OAT is reached to obtain the adjusted treatment participation value. The adjusted treatment participation was around 50% (BA: 47.4\u201351.4%; CZ: 49.8\u201353.9%; NL: 52.3\u201354.0%; ZU: 46.4\u201349.3%), and the annual decline of treatment need was close to 4%. Non-nationals (NL patients with a migrant background) showed substantial lower adjusted treatment participation (rate ratio BA: 0.059\u20130.343; NL: 0.710\u20130.751; ZU: 0.681\u20130.797; CZ: n.a.). Our method may provide a policy-relevant indicator of long-term provision, quality and access to OAT following first treatment.<\/jats:p>","DOI":"10.1159\/000490529","type":"journal-article","created":{"date-parts":[[2018,7,18]],"date-time":"2018-07-18T15:48:36Z","timestamp":1531928916000},"page":"173-183","source":"Crossref","is-referenced-by-count":6,"title":["Long-Term Opioid Agonist Treatment Participation after First Treatment Entry is Similar across 4 European Regions but Lower in Non-Nationals"],"prefix":"10.1159","volume":"24","author":[{"given":"Carlos","family":"Nordt","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lucas","family":"Wiessing","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wil","family":"Kuijpers","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeroen","family":"Wisselink","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Albert","family":"Espelt","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.\u00a0Teresa","family":"Brugal","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Viktor","family":"Mrav\u010dik","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Blanka","family":"Nechansk\u00e1","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erich","family":"Seifritz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcus","family":"Herdener","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"127","published-online":{"date-parts":[[2018,7,17]]},"container-title":["European Addiction Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/490529","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/490529","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T16:40:01Z","timestamp":1745426401000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000490529"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018]]},"references-count":0,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2018,8,30]]},"published-print":{"date-parts":[[2018,9,6]]}},"URL":"https:\/\/doi.org\/10.1159\/000490529","archive":["Portico"],"relation":{"is-supplemented-by":[{"id-type":"doi","id":"10.6084\/m9.figshare.6825227","asserted-by":"subject"}]},"ISSN":["1022-6877","1421-9891"],"issn-type":[{"value":"1022-6877","type":"print"},{"value":"1421-9891","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018]]}}}