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

 

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dc.contributor.author Carney, Tara en_ZA
dc.contributor.author Myers, Bronwyn en_ZA
dc.date.accessioned 2015-11-18T04:03:25Z
dc.date.available 2015-11-18T04:03:25Z
dc.date.issued 2012 en_ZA
dc.identifier.citation Carney, 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.uri http://hdl.handle.net/11427/15107
dc.identifier.uri http://dx.doi.org/10.1186/1747-597X-7-25
dc.description.abstract 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. en_ZA
dc.language.iso eng en_ZA
dc.publisher BioMed Central Ltd en_ZA
dc.rights This is an Open Access article distributed under the terms of the Creative Commons Attribution License en_ZA
dc.rights.uri http://creativecommons.org/licenses/by/2.0 en_ZA
dc.source Substance Abuse Treatment, Prevention, and Policy en_ZA
dc.source.uri http://substanceabusepolicy.biomedcentral.com/ en_ZA
dc.subject.other Systematic review en_ZA
dc.subject.other Early intervention en_ZA
dc.subject.other Substance use en_ZA
dc.subject.other Behavioural outcomes en_ZA
dc.subject.other Adolescence en_ZA
dc.title Effectiveness of early interventions for substance-using adolescents: findings from a systematic review and meta-analysis en_ZA
dc.type Journal Article en_ZA
dc.rights.holder 2012 Carney and Myers; licensee BioMed Central Ltd. en_ZA
uct.type.publication Research en_ZA
uct.type.resource Article en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Humanities en_ZA
dc.publisher.department Department of Psychology en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Carney, 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/11427/15107 en_ZA
dc.identifier.chicagocitation Carney, 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/11427/15107 en_ZA
dc.identifier.vancouvercitation Carney 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.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


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