E-cigarette price sensitivity among middle- and high-school students: evidence from monitoring the future.

摘要: Aims We estimated associations between e-cigarette prices (both disposable and refill) use among middle high-school students in the United States. We also cigarette use. Design We used regression models to estimate use. In our models, we exploited changes across four periods of time 50 markets. report as price elasticities. primary model, controlled for socio-demographic characteristics, prices, tobacco control policies, market fixed effects year-quarter effects. Setting United States America. Participants A total 24 370 middle- participating Monitoring Future Survey years 2014 2015. Measurements Self-reported over last 30 days. Average quarterly refill were constructed from Nielsen retail data (inclusive excise taxes) 50 US markets. Findings In a model with effects, that 10% increase is associated reduction number days vaping users by approximately 9.7% [95% confidence interval (CI) = −17.7 1.8%; P = 0.02] full sample 17.9% (95% CI = −31.5 −4.2%; P = 0.01). Refill not statistically significant predictors vaping. Cigarette significantly regardless used. However, without positive predictor use. Conclusions Higher appear be reduced adolescents US.