Past research has not examined secondhand and thirdhand smoke (THS) exposure in children of cigar smokers. We examined hand nicotine and cotinine levels in children of cigar smokers to explore the contribution of cigar smoke to tobacco smoke exposure (TSE).

Electronic cigarette (ECIG)-generated aerosol contains particulate matter with a diameter less than 2.5 microns (PM). Particles of this size may be injurious to the health of those who inhale them. Few studies have assessed the relationship between ECIG aerosol PM and ECIG liquid ingredients or ECIG device power.

We examined the prevalence of and factors associated with usually purchasing tobacco online.

Canada is the only country that currently uses cigarette pack inserts to communicate health messages to smokers, including tips to quit. Messages about strategies for quitting smoking are also central to the US Food and Drug Administration's (FDA) Every Try Counts (ETC) campaign. This study assessed US smokers' responses to Canadian and ETC-based messages formatted for pack inserts.

Intentional and unintentional exposures to electronic nicotine delivery system (ENDS) e-liquids can cause illness and death. In this study, we describe acute nicotine toxicity due to e-liquid exposure (ANTEE) information found on Twitter and contextualize ANTEE experiences to clarify conditions associated with exposure.

In this study, we examined whether visual exposure to the heated tobacco product (HTP) IQOS, which was authorized for sale by the US Food and Drug Administration in 2019, acts as a cue to increase cigarette craving and smoking behavior among smokers.

Given the need to understand e-cigarette retail and its impact, we examined sociodemographic, tobacco and marijuana use, and e-cigarette retail experiences as correlates of (1) past 30-day e-cigarette use, (2) past 30-day advertising/media exposure, and (3) point-of-sale age verification among young adults.

Toxic pollutants leaching from littered cigarette butts (CB) raise environmental impact concerns. The US Food and Drug Administration (FDA) is required to assess the environmental impacts of its tobacco regulatory actions per the US National Environmental Policy Act (NEPA).

The Population Assessment of Tobacco and Health (PATH) Study is a nationally representative study of the US population on tobacco use and its effects on health, with 3 waves of data collection between 2013 and 2016. Prior work described the methods of the first wave. In this paper, we describe the methods of the subsequent 2 waves and provide recommendations for how to conduct longitudinal analyses of PATH Study data.

This study's objective was to characterize the nicotine delivery profile of a variable voltage, tank-style electronic nicotine delivery system (ENDS).

The US Food and Drug Administration (FDA) issued new requirements to strengthen and increase the size of cigar warnings. Although these requirements were challenged in court by the cigar industry, and later struck down, cigar manufacturers had the option of voluntarily complying during the injunction. In this study, we examined voluntary warning compliance on a sample of discarded cigar wrappers.

Instagram influencers have many followers and are often paid to promote products, including e-cigarettes. This experimental study assessed effects of sponsorship disclosures on perceptions of e-cigarette Instagram influencer posts.

Measurement of electronic cigarette (ECIG) puff topography provides an understanding of how product characteristics and user behavior affect nicotine delivery. However, mouthpiece-based topography devices may affect natural puffing behavior. This study was designed to compare ECIG topography measured by mouthpiece-based eTop computerized device and mouthpiece-free video recordings.

Gutka is industrially manufactured in India and some Indian states have instituted bans on the sale of manufactured gutka as a public health initiative. We explored whether gutka was still available for purchase after the ban and also sought to observe methods of ban circumvention.

We assessed how many peer-reviewed publications reporting chemical quantities and/or yields from electronic nicotine delivery systems (ENDS) have included adequate method validation characteristics in the publication for appropriate interpretation of data quality for informing tobacco regulatory science.

On 20 December 2018, Altria, the largest US cigarette company, announced an offer for a 35% share of the large and rapidly growing vaping product company, Juul Labs. On 2 April, 2020, the Federal Trade Commission issued a complaint that the deal was anticompetitive and should be voided. This paper analyzes the deal. We find that the deal gives Altria market power in the e-cigarette market through its support of Juul in retail stores and through the agreement not to otherwise compete in the e-cigarette market. The deal also has implications for its marketing of heated tobacco product IQOS and generally may provide Altria greater control of the broader nicotine delivery product market.

Health warning messages could be an effective means of communicating the health risks associated with waterpipe (WP) smoking. The objective of this study was to select a message that conveyed the risks associated with WP smoking.

Characterize physical design features of cigarette brands sold in the US according to the delivery method of menthol that may affect sensory perception among users.

In our cross-sectional study, we aimed to determine age verification and sales of little cigars and cigarillos (LCCs) online to underage teens.

Minimally regulated electronic cigarettes (e-cigarette) advertising may be one potential factor driving the increasing prevalence of young adult e-cigarette use. Using eye-tracking, the current study examined which e-cigarette advertising features were the most appealing to young adults as a first step to examine how e-cigarette advertising may be regulated.

The current study adds to the literature on vape shops by evaluating vape shop growth in an urban community over a 3-year period, assessing similarities and differences across the vape shop context, and addressing whether socialization spaces within vape shops are associated with a vape shop's ultimate success - remaining operational. As e-cigarette/vaping use enters its second decade in the US market, its regulation and status as a novel form of substance use is evolving; accordingly, it is unknown whether the presence of vape shops has changed as well.