To the Editor The debate on effects of state medical and recreational marijuana laws (MMLs/RMLs) is at the forefront of drug policy. Assessing associations of MMLs/RMLs with youth marijuana use is critical given marijuana’s potential for long-term negative effects on brain development and function.^1,2 Anderson et al,³ using Youth Risk Behavior Survey (YRBS) data, report MMLs are not associated with youth marijuana use and RMLs are associated with reduced use. However, their analyses include substantial methodologic flaws that may undermine these findings.

中文翻译：

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挑战大麻法律与青少年大麻使用的关联

致编辑关于州医疗和娱乐大麻法 (MMLs/RMLs) 影响的辩论处于毒品政策的最前沿。鉴于大麻​​可能对大脑发育和功能产生长期负面影响，评估 MML/RML 与青少年大麻使用的关联至关重要。^{1 ,2} Anderson 等人³使用青年风险行为调查 (YRBS) 数据，报告 MML 与青年大麻使用无关，而 RML 与减少使用有关。然而，他们的分析包括可能破坏这些发现的重大方法学缺陷。