Peabody Research Institute, Vanderbilt University, Box 0181 GPC, 230 Appleton Place, Nashville, TN 37203, USA.
J Youth Adolesc. 2010 Dec;39(12):1402-16. doi: 10.1007/s10964-009-9489-6. Epub 2009 Dec 6.
Despite knowledge that early pubertal timing predicts adolescent girls' substance use, it is still unclear whether this relationship persists beyond early adolescence and whether it is conditional on girls' body weight. This study examined the moderating role of body weight in the association between early pubertal timing and adolescent girls' substance use using three waves of data from the National Longitudinal Study of Adolescent Health. The analytic sample included 5,591 adolescent girls attending middle-schools and high-schools in the United States (ages 10-15, 71% White, 14% Black). Results indicated that early pubertal timing was associated with substance use risk but effects were attenuated after controlling for prior use. Body weight moderated the association between early pubertal timing and girls' reported number of substances tried in middle adolescence. Body weight magnified the risk of having tried one substance, but buffered the risk of having tried three substances. Among those girls who did use substances, body weight did not moderate the relationship between early pubertal timing and heavy substance use. It is concluded that the substance use risk associated with early pubertal timing is most salient during the developmental period in adolescence when sensitivity to bodily changes may be heightened.
尽管人们已经了解到青春期提前开始会预测少女的物质使用，但仍不清楚这种关系是否会持续到青春期后，以及它是否取决于女孩的体重。本研究使用美国青少年健康纵向研究的三波数据，检验了体重在青春期提前开始与少女物质使用之间关系中的调节作用。分析样本包括来自美国中学和高中的 5591 名少女（年龄在 10-15 岁之间，71%为白人，14%为黑人）。结果表明，青春期提前开始与物质使用风险有关，但在控制了先前的使用情况后，这种影响会减弱。体重调节了青春期提前开始与女孩在青春期中期报告的尝试物质数量之间的关系。体重增加了尝试一种物质的风险，但缓冲了尝试三种物质的风险。在那些确实使用物质的女孩中，体重并没有调节青春期提前开始与大量物质使用之间的关系。结论是，与青春期提前开始相关的物质使用风险在青春期的发展阶段最为明显，此时对身体变化的敏感性可能会增强。
