Minnesota teens are still vaping at a 'very high rate' The majority of youth e-cig users report signs of nicotine dependence, MDH says. Author: Public health efforts to slow e-cigarette use in Minnesota teens appear to be working, but teens are still vaping at "very high rates," including a marked rise in teens vaping marijuana. That's according to the Minnesota Department of Health's 2020 Minnesota Youth Tobacco Survey, which found one in five high school students use e-cigarettes and more than 70% of middle and high schoolers who vape report signs of nicotine dependence. Last year's survey suggests public health efforts have slowed the "rapid growth" of e-cigarette use that's happened in recent years, with the report noting e-cigarette use "held steady" in 2020 compared to 2017.