Adolescents who both smoked and vaped nicotine were 5.6 times more likely to participate in binge drinking on one occasion.

Source: https://www.benzinga.com/general/biotech/23/05/32490304/is-vaping-a-gateway-to-further-substance-use-colombia-university-is-researching

Researchers from George Washington University in Washington DC gathered data from 545 people who both smoked and vaped regularly.

Source: https://www.dailymail.co.uk/health/article-11728193/Pregnant-women-use-vapes-snus-increase-babys-risk-sudden-infant-death-three-fold.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

The 19-year-old said he initially vaped only on the weekends before his habit progressed to 'every day, all the time'

Source: https://www.dailymail.co.uk/health/article-11936965/Vape-addicted-teen-19-claims-habit-caused-lungs-collapse-4-times.html?ns_mchannel=rss&ns_campaign=1490&ito=1490