Context Rapid developments in e-cigarettes, or electronic nicotine delivery systems (ENDS),
and the evolution of the overall tobacco product marketplace warrant frequent evaluation of …

Importance Approximately 90% of adult smokers first tried a cigarette by 18 years of age,
and even infrequent smoking in adolescence is associated with established adult smoking …

Importance Debate is ongoing about whether the scientific evidence of the health risks of
electronic cigarettes (e-cigarettes) compared with combustible cigarettes (hereinafter …

Purpose While smoking is declining among young people, smokeless tobacco use is
increasing. Identifying who is using smokeless tobacco and why is essential in preventing …

Introduction Although the impact of long-term use of electronic cigarettes (e-cigarettes) on
health is still unknown, current scientific evidence indicates that e-cigarettes are less harmful …

Introduction: The public health impact of vaporized nicotine products (VNPs) such as e-
cigarettes is unknown at this time. VNP uptake may encourage or deflect progression to …

Background Perceived risk reduction motivates smokers to switch to electronic nicotine
delivery systems (ENDS). This research examines US smokers' relative risk perceptions and …

Objective Electronic nicotine delivery systems (ENDS; including e-cigarettes) are rapidly
evolving in the US marketplace. This study reports cross-sectional prevalence and …

Background Recent data suggest that lower perceived risks of e-cigarettes are associated
with e-cigarette use in young adults; however, the temporality of this relationship is not well …

Background Little is known about the risk and addiction perceptions of e-cigarettes among
Asian populations. We examined e-cigarette perceptions among young adults in Hong Kong …