This study examined patterns of tobacco product use and their association with nicotine
dependence among US youth. Combined data from the 2017–2018 National Youth Tobacco …

Purpose To examine trends in single, dual, and polytobacco use between 2014-2020 for US
youth and to identify disparities in these trends by grade level, sex, and race/ethnicity …

Introduction There is a lack of research prospectively estimating the age of e-cigarette
initiation in US young adults. Methods Secondary analysis of PATH young adults across …

New tobacco and nicotine products have emerged on the market in recent years. Most
research has concerned only one product at a time, usually e-cigarettes, while little is known …

Background Tobacco use by youth and young adults can lead to significant long-term health
problems. We aim to understand transitions in tobacco use patterns among these groups …

Electronic cigarette use has dramatically increased over the last decade. With this recent
technological development and wide range of constituents in various products, putative …

Introduction Despite increases in adolescents' polytobacco use, little work has utilized recent
national data to examine transitions in polytobacco use over time or predictors of such …

Studies investigating patterns of tobacco use by race often aggregate non-Black and non-
Hispanic racial minorities into the “Other” category, masking important differences. Pooling …

Introduction Extant electronic cigarette (ECIG) dependence measures are largely adapted
from those designed for cigarette smoking, though few have been evaluated for their …

Purpose This prospective observational study examined the association of socioecological
factors with quitting behavior among US adolescents who exclusively use electronic …