Preventing Drug Use and HIV in Hispanic Adolescents

描述（由申请人提供）： 本研究旨在测试西班牙裔行为问题青少年及其家庭（Familias Unidas; United Families）的生态发展，以父母为中心的药物滥用和艾滋病预防干预的有效性。Familias Unidas针对行为问题、药物滥用和危险性行为的三个风险和保护因素：家庭功能、父母监督和青少年关于药物和性的社会认知中介。将在基线、6个月、18个月和30个月时对240名参加8年级的行为问题青少年及其主要父母进行评估。参与者将在基线后随机分为两种情况之一，家庭统一或社区控制。Familias Unidas先前已经进行了测试，以检查对青少年吸毒和艾滋病毒的风险和保护因素的影响，在选定的西班牙裔移民青少年及其家庭的样本。在两项研究中的第一项中，Familias Unidas被证明在增加父母投资和减少青少年行为问题方面相对于无干预控制条件是有效的。在第二项研究中，Familias Unidas在减少行为问题青少年的行为问题和预防吸毒和危险性行为方面表现出相对于两种注意力控制条件的承诺。分层线性模型（HLM）将用于测试（H1）Familias Unidas在减少青少年行为问题方面的疗效;（H2）Familias Unidas在预防青少年吸毒方面的疗效;以及（H3）Familias Unidas在预防青少年危险性行为方面的疗效。此外，HLM还将用于确定（H1 a）Familias Unidas对青少年行为问题的影响是否通过家庭功能介导;（H2 a）Familias Unidas对药物使用的影响是否部分通过以下因素介导：a）青少年行为问题，B）父母对同龄人的监控，c）同龄人行为问题（定义为同龄人药物使用），以及d）青少年关于药物的社会认知介质;和（H3 a）家庭对危险性行为的影响将部分由以下因素介导：a）青少年药物使用，B）父母对同伴的监控，c）同伴行为问题，定义为同伴性行为，和d）青少年关于性的社会认知中介。

DESCRIPTION (provided by applicant): This study proposes to test the efficacy of an ecodevelopmental, parent-centered drug abuse and HIV prevention intervention for Hispanic, behavior problem adolescents and their families (Familias Unidas; United Families). Familias Unidas targets three risk and protective factors for behavior problems, drug abuse and risky sexual behavior: family functioning, parental monitoring, and the adolescents' social cognitive mediators regarding drugs and sex. An indicated sample of 240 behavior problem adolescents attending 8th grade and their primary parent figure will be assessed at Baseline, and at 6-, 18-, and 30- months. Participants will be randomized after baseline into one of two conditions, Familias Unidas or Community Control. Familias Unidas has previously been tested to examine the impact on risk and protective factors for adolescent drug use and HIV in selected samples of Hispanic immigrant adolescents and their families. In the first of two studies, Familias Unidas was shown to be efficacious relative to a no-intervention control condition in increasing parental investment and in reducing adolescent behavior problems. In the second study, Familias Unidas showed promise relative to two attention control conditions in reducing behavior problems and preventing drug use and risky sexual behavior among behavior problem adolescents. Hierarchical Linear Modeling (HLM) will be used to test (H1) the efficacy of Familias Unidas in reducing adolescent behavior problems over time; (H2) the efficacy of Familias Unidas in preventing adolescent drug use over time; and (H3) the efficacy of Familias Unidas in preventing adolescent risky sexual behaviors over time. Additionally HLM will be used to determine whether (H1a) the effect of Familias Unidas on adolescent behavior problems will be mediated by family functioning; (H2a) the effect of Familias Unidas on drug use will be partially mediated by: a) adolescent behavior problems, b) parental monitoring of peers, c) peer behavior problems defined as peer drug use, and d) adolescent social cognitive mediators regarding drugs; and (H3a) the effect of Familias Unidas on risky sexual behavior will be partially mediated by: a) adolescent drug use, b) parental monitoring of peers, c) peer behavior problems defined as peer sexual behavior, and d) adolescent social cognitive mediators regarding sex.