Perceived harms and benefits of tobacco, marijuana, and electronic vaporizers among young adults in Colorado: implications for health education and research.

Aims: To evaluate how young adults perceive and compare harms and benefits of marijuana and tobacco products in the context of a legal marijuana market in Colorado.

Design: Semi-structured qualitative interviews.

Setting: Denver, CO, USA.

Traversing the triangulum: the intersection of tobacco, legalised marijuana and electronic vaporisers in Denver, Colorado.

Objective: To explore the intersection of tobacco, legalised marijuana and electronic vaporiser use among young adults in the 'natural laboratory' of Colorado, the first state with legalised retail marijuana.

Methods: We conducted semistructured interviews with 32 young adults (18-26 years old) in Denver, Colorado, in 2015 to understand the beliefs and practices related to the use of tobacco, marijuana and vaporisers.

Results: We found ambiguity about whether the phrase 'to smoke' refers to the use of tobacco or marijuana products.

One of several 'toys' for smoking: young adult experiences with electronic cigarettes in New York City.

Objective: This qualitative research explores the use of electronic cigarettes and other similar 'vapor' delivery devices among young adults in New York City.

Methods: We employed 17 focus groups followed by 12 semistructured interviews to understand the beliefs, opinions and practices related to the use of electronic cigarettes among young adult smokers (N=87).

Results: Participants were mainly daily (52%) and non-daily (41%) smokers.