Burris Jessica L, Riley Elizabeth, Puleo Gabriella E, Smith Gregory T
Department of Psychology and Markey Cancer Center, University of Kentucky, 206 Combs Cancer Research Building, Lexington, KY 40536-0096, USA.
Department of Psychology, University of Kentucky, 171 Funkhouser Dr., Lexington, KY 40506-0044, USA.
Drug Alcohol Depend. 2017 Sep 1;178:519-526. doi: 10.1016/j.drugalcdep.2017.06.007. Epub 2017 Jul 11.
Among early adolescents in the United States (U.S.), the prevalence of cigarette smoking is at its lowest level in recent decades. Nonetheless, given the risks of smoking in early development, it remains critically important to study both risk factors for smoking and risks from smoking. This longitudinal study with U.S. early adolescents examines smoking initiation and tests a model of reciprocal prediction between ever smoking and the personality trait of urgency (i.e., mood-based impulsivity), a trait that increases risk for multiple forms of dysfunction.
Participants (n=1906; 90% 10-11 years old, 50% female, 39% racial minorities at baseline) completed questionnaires 1-2 times per year starting in 5th grade and ending in 9th grade. Structural equation modeling allowed tests of bidirectional relationships between ever smoking and urgency controlling for pubertal status and negative affect at each wave.
Incidence of ever smoking increased from 5% to 27% over time, with current smoking around 5% at the last wave. Urgency at each wave predicted ever smoking at the next wave above and beyond covariates and prior smoking (all p<0.01). Likewise, with one exception, ever smoking predicted an increase in urgency at the subsequent wave above and beyond covariates and prior urgency (all p<0.05).
Results show that risk for smoking increases with higher levels of urgency and urgency increases secondary to engagement in smoking. Future work should therefore explore urgency as a point of prevention for smoking and smoking cessation as a means to mitigate mood-based impulsivity.
在美国的青少年早期人群中,吸烟率处于近几十年来的最低水平。尽管如此,鉴于吸烟对早期发育存在风险,研究吸烟的风险因素以及吸烟带来的风险仍然至关重要。这项针对美国青少年早期人群的纵向研究考察了吸烟的起始情况,并测试了曾经吸烟与冲动性人格特质(即基于情绪的冲动性)之间的相互预测模型,冲动性特质会增加多种功能障碍的风险。
参与者(n = 1906;基线时90%为10 - 11岁,50%为女性,39%为少数族裔)从五年级开始至九年级每年完成1 - 2次问卷调查。结构方程模型允许在控制每一波次的青春期状态和负面影响的情况下,测试曾经吸烟与冲动性之间的双向关系。
随着时间推移,曾经吸烟的发生率从5%上升至27%,在最后一波次时当前吸烟率约为5%。每一波次的冲动性在控制协变量和既往吸烟情况后,预测下一波次曾经吸烟的情况(所有p < 0.01)。同样,除了一个例外,曾经吸烟在控制协变量和既往冲动性后,预测后续波次冲动性的增加(所有p < 0.05)。
结果表明,冲动性水平越高,吸烟风险越高,而吸烟会继发冲动性增加。因此,未来的研究应探索将冲动性作为吸烟预防的切入点,以及将戒烟作为减轻基于情绪的冲动性的一种手段。