The research also found that many young people who started vaping continued to do so a year later – demonstrating the addictiveness of nicotine found in most e-cigarettes. More than one-third (36.7%) of those who first used an e-cigarette in 2018 were current vapers in 2019, compared to only 2.5% of those who had never used an e-cigarette in 2018.
The link was especially strong for JUUL. Those who had ever tried JUUL had 17 times higher odds of being a regular JUUL user a year later compared to those who had never used an e-cigarette in 2018.