Huang David Y C, Murphy Debra A, Hser Yih-Ing
UCLA Integrated Substance Abuse Programs, Semel Institute for Neuroscience and Human Behavior, 1640 S. Sepulveda Blvd., Suite 200, Los Angeles, CA 90025, USA,
Youth Soc. 2012 Dec;44(4):479-499. doi: 10.1177/0044118X11406747.
This study examined the trajectories of sexual risk behaviors among adolescents from ages 15 to 23, and factors associated with those trajectories. The sample was 5,419 adolescents from the 1997 National Longitudinal Survey of Youth. Using group-based trajectory modeling, five distinctive trajectory groups were identified. The High group had a high and increased risk trajectory over the observed ages. The Decreased group had a risk trajectory that accelerated before age 19, but decreased afterwards. The risk trajectories of the Increased-Early and Increased-Late groups were low at age 15, but increased significantly starting at ages 16 and 18 for the groups, respectively. Participants in the Low group remained at low risk over time. Sexual risk behaviors were also positively associated with alcohol use, marijuana use, and delinquency. Results highlight the need for intervention efforts to consider developmental timing of sexual risk behaviors and their associations with other problem behaviors.
本研究调查了15至23岁青少年性风险行为的轨迹，以及与这些轨迹相关的因素。样本来自1997年全国青年纵向调查中的5419名青少年。使用基于群体的轨迹模型，识别出了五个不同的轨迹组。高风险组在观察到的年龄范围内呈现出高且不断增加的风险轨迹。下降组的风险轨迹在19岁之前加速上升，但之后下降。早期增加组和后期增加组的风险轨迹在15岁时较低，但分别从16岁和18岁开始显著增加。低风险组的参与者随时间推移风险保持在较低水平。性风险行为也与饮酒、吸食大麻和犯罪呈正相关。结果强调了干预措施需要考虑性风险行为的发展时机及其与其他问题行为的关联。
