Brief Intervention for Marijuana Use among Latino Youth

“对拉丁裔青年使用大麻的简短干预”是一个为期两年的研究项目，旨在开发和测试一种以学校为基础的对西班牙裔/拉丁裔10年级和11年级学生使用大麻的简短干预。临床试验支持对成年和老年青少年大麻使用者进行短暂干预的有效性，但这些研究受到样本种族/种族多样性不足，缺乏对非寻求治疗人群的关注，没有直接检查假定的变化机制，以及未能解释可能的反应性评估效应的限制。10和11年级的大麻使用者，比他们的年轻或年长的同行，在发展大麻使用问题的风险特别高。西班牙裔/拉丁裔青少年报告的早发性大麻使用的流行率最高，这使得他们特别容易发展大麻使用问题。这项研究的主要目标是进行一项随机临床试验，评估一项以学校为基础的动机性访谈干预措施，针对拉丁美洲10年级和11年级学生使用大麻的情况。参与者（n = 240）将被随机分配到两种治疗条件：（1）简单建议和单独的个性化反馈报告（BA+PFR）或（2）简单建议，个性化反馈报告和动机访谈（BA+PFR+MI）。将在研究入组时以及3个月和6个月随访时对受试者进行评价。在6个月随访评估时，将随机选择15%的参与者进行尿液分析，以检查自我报告与物质使用生化指标之间的对应关系。我们假设，与接受简短建议和个性化反馈的青少年相比，接受动机性访谈的青少年在大麻使用和大麻相关的负面后果方面的减少幅度要大得多。其他目的是检查（a）与干预反应相关的变化机制，（B）性别、出生地、代际地位和语言偏好如何调节干预反应。我们相信我们提出的研究既有意义又有创新性，代表了为青少年大麻使用者制定有效，简短和以学校为基础的干预措施的重要下一步。

“Brief Intervention for Marijuana Use among Latino Youth" is a two-year research project designed to develop and test a school-based, brief intervention for marijuana using, Hispanic/Latino 10th & 11th graders. Clinical trials support the effectiveness of brief intervention with adult and older adolescent marijuana users, but these studies have been limited by insufficient ethnic/racial diversity of samples, lack of attention to nontreatment–seeking populations, no direct examination of putative mechanisms of change, and failure to account for possible reactivity-to-assessment effects. 10th & 11th grade marijuana users, more than their younger or older counterparts, are at especially high risk for developing problems with marijuana use. Hispanic/Latino adolescents report the highest prevalence of early onset marijuana use, which makes them particularly susceptible to the development of marijuana use problems. The primary goal of the proposed study is to conduct a randomized clinical trial evaluating a school-based motivational interviewing intervention targeting marijuana use among Latino 10th & 11th graders. Participants (n = 240) will be randomly assigned to two treatment conditions: (1) brief advice and a personalized feedback report alone (BA+PFR) or (2) brief advice, a personalized feedback report, and motivational interviewing (BA+PFR+MI). Participants will be evaluated at study entry, and at 3- and 6-month follow-ups. At the 6-month followup assessment, 15% of participants will be randomly selected for urinalysis in order to examine the correspondence between self-report and biochemical indices of substance use. We hypothesize adolescents assigned to motivational interviewing will demonstrate significantly greater reductions in marijuana use and marijuana-related negative consequences than adolescents assigned to brief advice plus personalized feedback. Additional aims are to examine (a) mechanisms of change associated with intervention response, (b) how gender, nativity, generational status, and language preference might moderate intervention response. We believe our proposed study is both significant and innovative, and represents an important next step in the development of effective, brief, and school-based interventions for adolescent marijuana users.