UCLA Integrated Substance Abuse Programs, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, CA 90025, USA.
J Subst Abuse Treat. 2013 May-Jun;44(5):548-56. doi: 10.1016/j.jsat.2012.12.006. Epub 2013 Jan 11.
The study examined joint trajectories of methamphetamine (MA) use and substance abuse treatment utilization and identified differences among pattern groups for a sample of 348 treated for MA use. Results from group-based trajectory modeling showed that treatment utilization during the first 10 years after initiation of MA use could be categorized into three distinctive patterns: about half the MA users have a pattern of low treatment utilization; one-fourth follow a quicker-to-treatment trajectory with higher probability of treatment during the first 5 years of MA use and less treatment in the next 5 years; and one-fourth have a slower-to-treatment trajectory with more treatment during the second half of the 10-year period. Four MA use patterns were identified: consistently low use, moderate, and high use, as well as a decreasing use pattern. Periods of greater likelihood of treatment participation were associated with periods of decreasing or lower frequency of MA use.
该研究考察了冰毒（MA）使用和药物滥用治疗利用的共同轨迹，并为 348 名接受 MA 使用治疗的样本确定了不同模式群体之间的差异。基于群组的轨迹建模结果表明，在 MA 使用开始后的头 10 年期间，治疗的利用可以分为三种不同的模式：大约一半的 MA 用户治疗利用率低；四分之一的人遵循更快进入治疗的轨迹，在前 5 年 MA 使用期间更有可能接受治疗，而在后 5 年接受的治疗较少；四分之一的人遵循较慢进入治疗的轨迹，在 10 年期间的后半段接受更多的治疗。确定了四种 MA 使用模式：持续低用量、中用量和高用量，以及减少使用模式。治疗参与可能性较大的时期与 MA 使用减少或频率降低的时期相关。
