dc.contributor.author | Melberg, Hans Olav | eng |
dc.contributor.author | Jones, Andrew Michael | eng |
dc.contributor.author | Bretteville-Jensen, Anne Line | eng |
dc.date.accessioned | 2015-09-04T09:36:32Z | |
dc.date.available | 2015-09-04T09:36:32Z | |
dc.date.issued | 2010-06 | |
dc.identifier.issn | 0377-7332 | |
dc.identifier.issn | 1435-8921 | |
dc.identifier.uri | https://hdl.handle.net/1956/10396 | |
dc.description.abstract | Trappetrinnshypotesen hevder at bruk av cannabis øker risikoen for også å starte med tyngre rusmidler. Vi har testet denne kontroversielle, men innflytelsesrike, hypotesen på et utvalg cannabisbrukere i Norge. For å undersøke om det finnes en årsaksmessige trappetrinns-effekt, gjorde vi en bivariat forløpsanalyse og tok hensyn til ulikheter i ”sårbarhet” for rusmiddelbruk ved å anvende en metode med latente klasser. I tillegg til å kontrollere for en rekke andre variable, har vi kunnet gjøre bruk av et unikt datasett for narkotikapriser. Modellen finner to klart avgrensede grupper; en liten gruppe ”problemungdom”, der det er en statistisk signifikant trappetrinns-effekt, som mer enn dobler risikoen for å starte med tyngre stoffer, og en større gruppe ungdommer der tidligere cannabisbruk har mindre innflytelse. | en_US |
dc.description.abstract | The gateway hypothesis proposes that use of cannabis directly increases the risk of consuming hard drugs. We test this controversial, but influential, hypothesis on a sample of cannabis users, exploiting a unique set of drug price data. A flexible approach is developed to identify the causal gateway effect using a bivariate survival model with shared frailty estimated using a latent class approach. The model suggests two distinct groups; a smaller group of “troubled youths” for whom there is a statistically significant gateway effect that more than doubles the hazard of starting to use hard drugs and a larger fraction of youths for whom previous cannabis use has less impact. | en_US |
dc.language.iso | eng | eng |
dc.publisher | Springer | eng |
dc.relation.uri | http://hera.helsebiblioteket.no/hera/bitstream/10143/301782/1/Melberg180913_iscannabis.pdf | |
dc.subject | Gateway hypothesis | eng |
dc.subject | Illicit drugs | eng |
dc.subject | Duration analysis | eng |
dc.subject | Latent class models | eng |
dc.title | Is cannabis a gateway to hard drugs? | eng |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.date.updated | 2015-08-17T12:32:11Z | |
dc.description.version | acceptedVersion | |
dc.rights.holder | Copyright Springer-Verlag 2009 | en_US |
dc.identifier.doi | https://doi.org/10.1007/s00181-009-0280-z | |
dc.identifier.cristin | 348820 | |
dc.source.journal | Empirical Economics | |
dc.source.40 | 38 | |
dc.source.14 | 3 | |
dc.source.pagenumber | 583-603 | |
dc.subject.nsi | VDP::Medisinske fag: 700::Helsefag: 800::Samfunnsfarmasi: 812 | |
dc.subject.nsi | VDP::Midical sciences: 700::Health sciences: 800::Community pharmacy: 812 | |