OBJECTIVE We compared estimates of adolescents' nicotine product use and perceptions of harm from two national surveys: Monitoring the Future (MTF) and Population Assessment of Tobacco and Health (PATH). We explored one explanation for the different estimates for nicotine product use and adolescents' perceptions of harm. METHOD We used data source triangulation examining 30-day e-cigarette use and cigarette smoking, beliefs about harm, and friends' use of these products in two samples of adolescents from the 2015-2016 MTF and PATH samples. RESULTS Differences were found, with MTF reporting higher prevalence rates in both past-30-day e-cigarette use (12.4% vs. 6.7%) and cigarette smoking (8.6% vs. 5.1%) when compared with PATH. Differences were significant at the .001 alpha level. MTF respondents were less likely than PATH respondents to view both e-cigarettes (17.7% vs. 48.6%) and cigarettes (75.6% vs. 82.4%) as harmful. The unadjusted odds ratio (OR) shows that PATH respondents had significantly lower odds of indicating either e-cigarette (OR = 0.509, 95% confidence interval [CI] [0.400, 0.648]) or cigarette smoking (OR = 0.571, 95% CI [0.433, 0.753]) when compared with MTF respondents. However, these differences in e-cigarette use (adjusted odds ratio [AOR] = 0.849, 95% CI [0.630, 1.144]) and cigarette smoking (AOR = 0.829, 95% CI = [0.578, 1.189]) were mediated when additional predictors were included in the model (i.e., friends use, risk of harm). CONCLUSIONS Substantial differences were found between national surveys estimating population rates of e-cigarette use and cigarette smoking. Data source triangulation allowed for new explanations for several of the disparate nicotine use estimates between MTF and PATH.

中文翻译：

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为什么国家估算值如此不同？MTF和PATH调查中青少年电子烟使用和吸烟的比较

目的我们比较了两项全国性调查对青少年尼古丁产品使用的估计和对危害的看法：监测未来（MTF）和烟草与健康人群评估（PATH）。我们针对烟碱产品使用和青少年对伤害的感知的不同估计，探索了一种解释。方法我们使用数据源三角测量法研究了2015-2016年MTF和PATH样本的两个青少年样本中30天电子烟的使用和吸烟，对危害的看法以及朋友对这些产品的使用。结果发现差异，MTF与PATH相比，过去30天的电子烟使用率（12.4％比6.7％）和吸烟（8.6％比5.1％）更高。在.001 alpha级别上存在显着差异。与PATH受访者相比，MTF受访者认为电子烟（17.7％对48.6％）和香烟（75.6％对82.4％）均有害的可能性较小。未经调整的优势比（OR）显示，PATH受访者表示使用电子烟（OR = 0.509，95％置信区间[CI] [0.400，0.648]）或吸烟（OR = 0.571，95％CI）的几率明显较低[0.433，0.753]）与MTF受访者相比。但是，在补充电子烟时，这些电子烟使用的差异（调整后的优势比[AOR] = 0.849，95％CI [0.630，1.144]）和吸烟（AOR = 0.829，95％CI = [0.578，1.189]）之间存在差异。模型中包含预测变量（即，朋友使用，伤害风险）。结论在估计电子烟使用率和吸烟率的全国调查之间发现了很大的差异。