青春期和青年期性风险行为的发展轨迹。
Growth trajectories of sexual risk behavior in adolescence and young adulthood.
作者信息
Fergus Stevenson, Zimmerman Marc A, Caldwell Cleopatra H
机构信息
School of Kinesiology and Health Studies, Queen's University, Kingston, Ontario, Canada.
出版信息
Am J Public Health. 2007 Jun;97(6):1096-101. doi: 10.2105/AJPH.2005.074609. Epub 2007 Apr 26.
OBJECTIVES
Adolescence and young adulthood (ages 18-25 years) are periods of development and change, which include experimentation with and adoption of new roles and behaviors. We investigated longitudinal trajectories of sexual risk behaviors across these time periods and how these trajectories may be different for varying demographic groups.
METHODS
We developed multilevel growth models of sexual risk behavior for a predominantly African American sample (n=847) that was followed for 8 years, from adolescence to young adulthood. We investigated differences in growth parameters by race/ethnicity and gender and their interactions.
RESULTS
The final model included linear and quadratic terms for both adolescence and young adulthood, indicating acceleration of sexual risk behaviors during adolescence and a peak and deceleration during young adulthood. African American males exhibited the highest rate of sexual risk behavior in ninth grade, yet had the slowest rate of growth. Compared with their White peers, African American males and females exhibited less sexual risk behavior during young adulthood.
CONCLUSIONS
Our results suggest that youths of different races/ethnicities and genders exhibit varying sexual risk behavior trajectories.
目的
青少年期和青年期（18 - 25岁）是发展和变化的时期，包括对新角色和行为的尝试与采纳。我们研究了这些时间段内性风险行为的纵向轨迹，以及不同人口统计学群体的这些轨迹可能存在的差异。
方法
我们为一个以非裔美国人为主的样本（n = 847）建立了性风险行为的多层次增长模型，该样本从青少年期到青年期被跟踪了8年。我们研究了按种族/民族和性别划分的增长参数差异及其相互作用。
结果
最终模型包括青少年期和青年期的线性和二次项，表明青少年期性风险行为加速，青年期达到峰值并减速。非裔美国男性在九年级时性风险行为发生率最高，但增长率最慢。与白人同龄人相比，非裔美国男性和女性在青年期的性风险行为较少。
结论
我们的结果表明，不同种族/民族和性别的年轻人表现出不同的性风险行为轨迹。
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