Early age of e-cigarette use onset mediates the association between impulsivity and e-cigarette use frequency in youth
Early age of e-cigarette use onset mediates the association between impulsivity and e-cigarette use frequency in youth
复制标题
DOI：
10.1016/j.drugalcdep.2017.09.025
复制
发表时间：
2017-12-01
影响因子：
4.2
通讯作者：
Krishnan-Sarin, Suchitra
中科院分区：
文献类型：
--
作者：
Bold, Krysten W.;Morean, Meghan E.;Krishnan-Sarin, Suchitra
背景资料。鉴于电子烟的高使用率和长期使用对健康的未知影响，确定青少年使用电子烟的风险因素至关重要。本研究探讨了电子烟使用的早期年龄是否在冲动与电子烟使用频率之间起到了中介作用。方法：收集了康涅狄格州东南部8所高中电子烟使用者(n=927)的横断面调查数据。样本中44.7%为女性(平均年龄16.2[SD=1.2]，平均发病年龄14.7[SD=1.6])。使用简化的Barratt冲动量表评估了自我报告的特质冲动性的两个领域：自我调节受损(例如，注意力集中或自我控制问题)和行为冲动性(例如，不思考地做事情)。结果：假设的中介作用在冲动的两个领域都得到支持(自我调节受损a(1)b=0.09，SE=0.02，95%CI[0.03-0.14]，p=0.002；行为冲动a(2)b=0.07，SE=0.03，95%可信区间[0.01-0.14]，p=0.03。具体地说，自我调节能力受损(B=-0.33，SE=0.06，p<；0.001)和行为冲动(B=-0.26，SE=0.11，p=0.02)预示着越早尝试电子烟，越早开始吸电子烟与过去一个月使用电子烟的天数有关(B=-0.28，SE=0.08，p<；0.001)。结论：支持冲动方面的青少年，如不加思考地行事，在电子烟开始的早期阶段，更频繁地使用电子烟的风险更大。需要进一步的研究来纵向评估这些关系，并为冲动的年轻人开发有针对性的电子烟干预措施。
Background. Identifying risk factors for youth e-cigarette use is critical, given high rates of e-cigarette use and unknown health effects of long-term use. The current study examined whether an early age of onset of e-cigarette use mediates the association between impulsivity and e-cigarette frequency.Methods: Cross-sectional survey data of e-cigarette users (n = 927) were collected from 8 high schools in southeastern Connecticut. The sample was 44.7% female (mean age 16.2 [SD = 1.2], mean age of e-cigarette onset 14.7 [SD = 1.6]). Two domains of self-reported, trait impulsivity were assessed using the abbreviated Barratt Impulsiveness Scale: impaired self-regulation (e.g., problems with concentration or self-control) and behavioral impulsivity (e.g., doing things without thinking). Mediation was tested with Mplus, and the model included school as a cluster variable and controlled for covariates related to e-cigarette use (i.e., sex, age, race, peer use, and other tobacco products ever tried).Results: The hypothesized mediation was supported for both domains of impulsivity (impaired self-regulation a(1)b = 0.09, SE = 0.02, 95%CI [0.03-0.14], p =.002; behavioral impulsivity a(2)b = 0.07, SE = 0.03, 95%CI [.01-.14], p = 0.03). Specifically, impaired self-regulation (B =-0.33, SE = 0.06, p < 0.001) and behavioral impulsivity (B = -0.26, SE = 0.11, p = 0.02) predicted, trying e-cigarettes at an earlier age, and earlier initiation was associated with more days of e-cigarette use in the past month (B = -0.28, SE = 0.08, p < 0.001).Conclusions: Adolescents who endorse aspects of impulsivity, such as acting without thinking, are at greater risk for more frequent e-cigarette use through an early age of e-cigarette initiation. Further research is needed to evaluate these relationships longitudinally and to develop targeted e-cigarette interventions for impulsive youth.