The University of Nebraska - Lincoln, 737 Oldfather Hall, Lincoln, NE 68588-0324, United States.
Soc Sci Res. 2012 Sep;41(5):1227-40. doi: 10.1016/j.ssresearch.2012.03.015. Epub 2012 Apr 3.
This study investigated the links between marijuana use trajectories and marijuana abuse/dependence (DSM-IV) using five waves of data from 718 North American Indigenous adolescents between 10 and 17years from eight reservations sharing a common language and culture. Growth mixture models indicated that 15% of youth began using by 11-12years of age and that another 20% began shortly thereafter. These early users had odds of abuse/dependence 6.5 times larger than abstainers. Girls were also unexpectedly found to be particularly at risk of early use, and this did not reflect other background and psychosocial factors, including friend use. While the timing, patterns, and consequences of use were similar to those reported for alcohol use previously, the social influences on use differed in important ways.
本研究使用来自八个保留地的 718 名北美原住民青少年在 10 至 17 岁期间的五波数据，调查了大麻使用轨迹与大麻滥用/依赖（DSM-IV）之间的联系。这些保留地拥有共同的语言和文化。增长混合物模型表明，15%的青少年在 11-12 岁开始使用大麻，此后另有 20%的青少年开始使用。这些早期使用者滥用/依赖的几率是不使用者的 6.5 倍。女孩也出人意料地被发现特别容易早期使用大麻，这与包括朋友使用在内的其他背景和社会心理因素无关。虽然使用的时间、模式和后果与之前报告的酒精使用相似，但使用的社会影响在重要方面有所不同。
