Effectiveness of early interventions for substance-using adolescents: findings from a systematic review and meta-analysis

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dc.contributor.authorCarney, Taraen_ZA
dc.contributor.authorMyers, Bronwynen_ZA
dc.date.accessioned2015-11-18T04:03:25Z
dc.date.available2015-11-18T04:03:25Z
dc.date.issued2012en_ZA
dc.description.abstractBACKGROUND: Information on the impact of available interventions that address adolescent substance use and delinquency can inform investment choices. This article aims to identify and evaluate early interventions that target adolescent substance use as a primary outcome, and criminal or delinquent behaviours as a secondary outcome.METHOD:A systematic review of early interventions for adolescent substance use and behavioural outcomes was conducted. RESULTS: We identified nine studies using specific search strategies. All but one of the studies reported the use of brief intervention strategies. Only seven studies contained information which allowed for the calculation of an effect size, and were therefore included in the meta-analysis. The overall effect size for all outcomes combined was small but significant (g=0.25, p<0.001). The overall outcome for substance use was also small but significant (g=0.24, p<0.001). For studies with behavioural outcomes, the overall effect size reached significance (g=0.28, p<0.001). In general, subgroup analysis showed that individual interventions with more than one session had a stronger effect on the outcomes of interest. CONCLUSIONS: Early interventions for adolescent substance use do hold benefits for reducing substance use and associated behavioural outcomes. Interventions are most promising if delivered in an individual format and over multiple sessions. One intervention in particular had large effect sizes. As all the interventions were tested in developed countries, further testing is needed in low- and middle-income countries where there is a lack of research on evidence-based interventions for adolescent risk behaviours. Additional recommendations for policy and practice are provided in this paper.en_ZA
dc.identifier.apacitationCarney, T., & Myers, B. (2012). Effectiveness of early interventions for substance-using adolescents: findings from a systematic review and meta-analysis. <i>Substance Abuse Treatment, Prevention, and Policy</i>, http://hdl.handle.net/11427/15107en_ZA
dc.identifier.chicagocitationCarney, Tara, and Bronwyn Myers "Effectiveness of early interventions for substance-using adolescents: findings from a systematic review and meta-analysis." <i>Substance Abuse Treatment, Prevention, and Policy</i> (2012) http://hdl.handle.net/11427/15107en_ZA
dc.identifier.citationCarney, T., & Myers, B. (2012). Effectiveness of early interventions for substance-using adolescents: findings from a systematic review and meta-analysis. Subst Abuse Treat Prev Policy, 7(1), 25.en_ZA
dc.identifier.ris TY - Journal Article AU - Carney, Tara AU - Myers, Bronwyn AB - BACKGROUND: Information on the impact of available interventions that address adolescent substance use and delinquency can inform investment choices. This article aims to identify and evaluate early interventions that target adolescent substance use as a primary outcome, and criminal or delinquent behaviours as a secondary outcome.METHOD:A systematic review of early interventions for adolescent substance use and behavioural outcomes was conducted. RESULTS: We identified nine studies using specific search strategies. All but one of the studies reported the use of brief intervention strategies. Only seven studies contained information which allowed for the calculation of an effect size, and were therefore included in the meta-analysis. The overall effect size for all outcomes combined was small but significant (g=0.25, p<0.001). The overall outcome for substance use was also small but significant (g=0.24, p<0.001). For studies with behavioural outcomes, the overall effect size reached significance (g=0.28, p<0.001). In general, subgroup analysis showed that individual interventions with more than one session had a stronger effect on the outcomes of interest. CONCLUSIONS: Early interventions for adolescent substance use do hold benefits for reducing substance use and associated behavioural outcomes. Interventions are most promising if delivered in an individual format and over multiple sessions. One intervention in particular had large effect sizes. As all the interventions were tested in developed countries, further testing is needed in low- and middle-income countries where there is a lack of research on evidence-based interventions for adolescent risk behaviours. Additional recommendations for policy and practice are provided in this paper. DA - 2012 DB - OpenUCT DO - 10.1186/1747-597X-7-25 DP - University of Cape Town J1 - Substance Abuse Treatment, Prevention, and Policy LK - https://open.uct.ac.za PB - University of Cape Town PY - 2012 T1 - Effectiveness of early interventions for substance-using adolescents: findings from a systematic review and meta-analysis TI - Effectiveness of early interventions for substance-using adolescents: findings from a systematic review and meta-analysis UR - http://hdl.handle.net/11427/15107 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/15107
dc.identifier.urihttp://dx.doi.org/10.1186/1747-597X-7-25
dc.identifier.vancouvercitationCarney T, Myers B. Effectiveness of early interventions for substance-using adolescents: findings from a systematic review and meta-analysis. Substance Abuse Treatment, Prevention, and Policy. 2012; http://hdl.handle.net/11427/15107.en_ZA
dc.language.isoengen_ZA
dc.publisherBioMed Central Ltden_ZA
dc.publisher.departmentDepartment of Psychologyen_ZA
dc.publisher.facultyFaculty of Humanitiesen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.rightsThis is an Open Access article distributed under the terms of the Creative Commons Attribution Licenseen_ZA
dc.rights.holder2012 Carney and Myers; licensee BioMed Central Ltd.en_ZA
dc.rights.urihttp://creativecommons.org/licenses/by/2.0en_ZA
dc.sourceSubstance Abuse Treatment, Prevention, and Policyen_ZA
dc.source.urihttp://substanceabusepolicy.biomedcentral.com/en_ZA
dc.subject.otherSystematic reviewen_ZA
dc.subject.otherEarly interventionen_ZA
dc.subject.otherSubstance useen_ZA
dc.subject.otherBehavioural outcomesen_ZA
dc.subject.otherAdolescenceen_ZA
dc.titleEffectiveness of early interventions for substance-using adolescents: findings from a systematic review and meta-analysisen_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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