E-cigarette and Combusted Tobacco Abstinence among Young Adults: Secondary Analyses from a U.S.-base
Friday, July 15, 2022
Posted by: Natalia Gromov
Graham
AL, Cha S, Papandonatos GD, et al.
E-cigarette and Combusted
Tobacco Abstinence among Young Adults: Secondary Analyses from a U.S.-based
Randomized Controlled Trial of Vaping Cessation.
[published online ahead of print, 2022 Jun 28]. Prev Med. 2022;107119.
doi:10.1016/j.ypmed.2022.107119
Objective. To
examine patterns of abstinence from e-cigarettes, combusted tobacco products
(CTPs), both, or neither among young adults enrolled in a U.S.-based randomized
trial of a text message vaping cessation intervention.
Methods. At
baseline, 1829 young adult e-cigarette users were categorized as Exclusive
E-cigarette Users (no past 30-day CTP use; n = 1036, 56.6%) or Dual Users (past
30-day CTP use; n = 793, 43.4%). Four groups were defined at 7-months: 1) Dual
Abstinent, 2) Exclusive Vaping, 3) Exclusive CTP Use, and 4) Dual Users. The
proportion of participants who were Dual Abstinent was the outcome of interest.
Results. At
follow-up, 22.1% (95% CI: 20.3, 24.1) of participants were Dual Abstinent,
44.8% (95% CI: 42.5, 47.1) reported Exclusive Vaping, 6.3% (95% CI: 5.2, 7.5)
reported Exclusive CTP Use, and 26.8% (95% CI: 24.8, 28.9) were Dual Users. A
higher proportion of participants randomized to Intervention were Dual
Abstinent (25.9%, 95% CI 23.1, 28.9) compared to Control (18.5%, 95% CI 16.0,
21.1; p = .0002). Analyses of treatment effects on dual abstinence by baseline
tobacco product use favored Intervention over Control among both Exclusive
E-cigarette Users (p = .019) and Dual Users (p = .0014).
Conclusion. A
text message vaping cessation intervention was effective in promoting dual
abstinence from e-cigarettes and CTPs among young adults. The advantage of
treatment over control was equivalent for Exclusive E-cigarette Users and Dual
Users. Rates of dual abstinence were higher among exclusive vapers than dual
users, signaling the need for more research to optimize cessation programs for
poly-tobacco users.
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