{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T08:47:30Z","timestamp":1778489250733,"version":"3.51.4"},"reference-count":39,"publisher":"Wiley","license":[{"start":{"date-parts":[[2014,1,1]],"date-time":"2014-01-01T00:00:00Z","timestamp":1388534400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"DOI":"10.13039\/100000026","name":"National Institute on Drug Abuse","doi-asserted-by":"publisher","award":["R01 DA021299"],"award-info":[{"award-number":["R01 DA021299"]}],"id":[{"id":"10.13039\/100000026","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Addiction"],"published-print":{"date-parts":[[2014]]},"abstract":"<jats:p><jats:italic>Background<\/jats:italic>. Prescription opioids are the most frequently misused class of prescription drug among young adults aged 18\u201325, yet trajectories of opioid misuse and escalation are understudied. We sought to model opioid misuse patterns and relationships between opioid misuse, sociodemographic factors, and other substance uses.<jats:italic>Methods<\/jats:italic>. Participants were 575 young adults age 16\u201325 who had misused opioids in the last 90 days. Latent class analysis was performed with models based on years of misuse, recency of misuse, and alternate modes of administration within the past 12 months, 3 months, and 30 days.<jats:italic>Results<\/jats:italic>. Four latent classes emerged that were differentially associated with heroin, cocaine, and methamphetamine use, tranquilizer misuse, daily opioid misuse, and opioid withdrawal. Alternate modes of administering opioids were associated with increased risk for these outcomes. Sociodemographic factors, homelessness, prescription history, and history of parental drug use were significantly associated with riskier opioid misuse trajectories.<jats:italic>Conclusion<\/jats:italic>. Young adults who reported more debilitating experiences as children and adolescents misused opioids longer and engaged in higher risk alternate modes of administering opioids. Data on decisions both to use and to alter a drug\u2019s form can be combined to describe patterns of misuse over time and predict important risk behaviors.<\/jats:p>","DOI":"10.1155\/2014\/156954","type":"journal-article","created":{"date-parts":[[2014,11,24]],"date-time":"2014-11-24T16:00:23Z","timestamp":1416844823000},"page":"1-8","source":"Crossref","is-referenced-by-count":13,"title":["Correlates and Consequences of Opioid Misuse among High-Risk Young Adults"],"prefix":"10.1155","volume":"2014","author":[{"given":"Sheree M.","family":"Schrager","sequence":"first","affiliation":[{"name":"Division of Hospital Medicine, Children\u2019s Hospital Los Angeles, 4650 Sunset Boulevard, MS No. 94, Los Angeles, CA 90027, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4331-9161","authenticated-orcid":true,"given":"Aleksandar","family":"Kecojevic","sequence":"additional","affiliation":[{"name":"Division of Health Promotion and Behavioral 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