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Trends and predictors of exclusive e-cigarette use, exclusive smoking and dual use among youth in Canada.
Addictive Behaviors ( IF 4.4 ) Pub Date : 2020-05-21 , DOI: 10.1016/j.addbeh.2020.106481
Sarah Aleyan 1 , Sarah C Hitchman 2 , Mark A Ferro 3 , Scott T Leatherdale 3
Affiliation  

BACKGROUND Few studies have examined predictors of exclusive e-cigarette use, exclusive smoking and dual use among youth. We investigated whether frequency of e-cigarette use and cigarette smoking predicted involvement in different usage groups after a 1- and 2-year follow-up among a sample of Canadian youth. METHODS A longitudinal sample of youth who participated in three waves of COMPASS [Wave 1 (W1) 2015/16, Wave 2 (W2) 2016-17, Wave 3 (W3) 2017/18] was identified (N = 5,704). Multinomial logistic regression was used to examine whether frequency of e-cigarette use and cigarette smoking at W1 predicted involvement in different usage groups at W2 and W3. Similarly, we examined whether changes in frequency of e-cigarette use and cigarette smoking between W1 and W2 predicted involvement in different usage groups at W3. RESULTS E-cigarette users reporting use on 4 or more days per month at W1 had greater odds of dual use at W2, compared to non-users (aOR = 11.22, p < 0.0001). Those who reduced their frequency of e-cigarette use between W1 and W2 had lower odds of exclusive e-cigarette use and dual use at W3 (aOR = 0.18 and 0.17 respectively; both p < 0.05). Those who increased their frequency of cigarette smoking between W1 and W2 had higher odds of exclusive smoking and dual use at W3 (aOR = 22.65 and aOR = 9.92 respectively; both p < 0.0001). DISCUSSION Reductions in frequency of e-cigarette use appeared to have a protective effect of reducing exclusive e-cigarette use and dual use at follow-up. Increases in frequency of cigarette smoking were a significant predictor of exclusive smoking and dual use.

中文翻译:

加拿大年轻人中专有电子烟使用,专有吸烟和双重使用的趋势和预测指标。

背景技术很少有研究检查年轻人中专有电子烟使用,专有吸烟和双重使用的预测因素。我们调查了在加拿大青年样本中进行的1年和2年随访后,电子烟使用和抽烟的频率是否预测参与了不同使用群体。方法鉴定了参加COMPASS三波竞赛的青年的纵向样本[波1(W1)2015/16,波2(W2)2016-17,波3(W3)2017/18](N = 5,704)。使用多项逻辑回归分析检查在第1周使用电子烟和吸烟的频率是否预测在第2周和第3周使用不同的使用人群。同样,我们检查了在W1和W2之间使用电子烟和吸烟的频率变化是否预测在W3会涉及不同的使用群体。结果与非使用者相比,报告在W1每月使用4天或更长时间的电子烟使用者在W2两次使用的机率更高(aOR = 11.22,p <0.0001)。那些在W1和W2之间减少电子烟使用频率的人在W3时专有电子烟使用和双重使用的几率较低(aOR分别为0.18和0.17;两者均p <0.05)。那些在W1和W2之间增加吸烟频率的人在W3时专有吸烟和双重吸烟的几率更高(aOR = 22.65和aOR = 9.92;两者均p <0.0001)。讨论减少电子烟的使用频率似乎具有减少随访中专有电子烟使用和双重使用的保护作用。吸烟频率的增加是专有吸烟和双重使用的重要预测指标。
更新日期:2020-05-21
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