Publications by authors named "David Timberlake"

Background: Researchers have drawn attention to the need for modifying survey questions on cigars for distinguishing use intended for tobacco versus cannabis (i.e. blunt) consumption.

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Aims: The aim of this study is to identify cannabis products according to their appeal among young adults and measure product sales trends.

Design, Setting And Participants: This was a retrospective comparative study using point-of-sale data from licensed recreational cannabis retailers that include buyer age with birth year entered by retailers, set in California, USA. Cannabis purchases by young adults (aged 21-24, GenZ) were compared with older adults (age 25+) over 4 years (2018-21).

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Objective: The recent debut of the non-tobacco blunt wrap (N-TBW) for smoking cannabis has received little attention from the tobacco control community. The present study is intended to assess blunt smokers' perceptions and receptivity to N-TBWs, which are being marketed as an alternative to cigarillos and other tobacco products used for making blunts.

Method: Current blunt smokers ( = 41) were recruited from social media platforms to participate in one of nine 2-hour focus groups held between October 2022 and May 2023.

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Objective: Non-tobacco blunt wraps (N-TBWs), which entered the marketplace in 2017, are being promoted as an alternative to traditional TBWs (e.g., cigarillos) for blunt smoking.

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The 2019 outbreak of e-cigarette or vaping product use-associated lung injury (EVALI) is believed to have been caused by vitamin E acetate, an additive used in some cannabis vaporizer products. Previous studies have primarily focused on changes in sales of electronic nicotine delivery systems following the initial advisory issued by the Centers for Disease Control (CDC) on August 17, 2019. The present study is intended to examine variation by age groups in sales of regulated cannabis vape products in the state of California before, during, and after the outbreak.

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Background: State and local policies prohibiting the sales of flavored tobacco have been effective in curtailing retail availability and sales of products across the United States. Less is known about the use of flavored tobacco which could vary as a function of type of ordinance, product category, policy implementation, and other factors.

Methods: The 2019-2020 California Health Interview Surveys were used to estimate flavored and non-flavored tobacco use among adults (n = 43,681) residing in a California jurisdiction with a comprehensive (n = 48), partial (n = 35), or no flavored tobacco sales restriction (FTSR) (n = 427).

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Objective: Cannabis and tobacco retailers are believed to cluster in areas with more racial/ethnic minorities, which could account for the disproportionate use of blunts in Black and Hispanic communities. The current study examined the spatial relationship between cannabis and licensed tobacco retailers in Los Angeles County, California, and assessed whether various neighborhood and business factors influenced the spatial patterning.

Method: Generalized additive models were used to test the association between the location of cannabis retailers ( = 429) and their accessibility potential (AP) to tobacco retailers ( = 8,033).

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Several cities, but only two U.S states, have passed a law banning the sales of flavored tobacco products. It has been suggested that framing tobacco control policy solely in terms of the youth could send the erroneous message that tobacco use is an acceptable behavior for adults.

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Objective: The harm perceptions of individuals who smoke either blunts or the Black & Mild (B&M) brand, which is often "freaked," have seldom been investigated. Since these practices could affect users' perceived health risks of the cigarillo, this study was intended to compare such risks among cigarillo users by modified use of the tobacco product.

Method: Adult cigarillo and blunt smokers were selected from the Population Assessment of Tobacco and Health Study for cross-sectional (Wave 4; = 3,331) and longitudinal (Waves 3-4; = 1,898) analyses of predictors of general and relative harm perceptions of cigarillos.

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Background: Recent changes in California's tobacco and cannabis policies could impact the retail availability of little cigars/cigarillos (LCCs) and blunt wraps that are used for blunt smoking. This study was intended to test whether tobacco flavor bans and minimum pack sizes of LCCs have reduced tobacco availability in California jurisdictions, whereas, permissive policies on sales and marketing of cannabis increased availability.

Methods: Measures of retail availability of LCCs and blunt wraps were obtained from the 2016-2019 longitudinal sample of licensed tobacco retailers (LTRs, n = 4062) from California's Healthy Stores for Healthy Communities campaign.

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Introduction: Prior studies indicate that cigarette manufacturers have been interested for decades in developing a smokeless tobacco (SLT) product for smokers and non-users of SLT. The current study aims to assess a tobacco company's use of novel marketing strategies and intent to promote snus in the US as either a replacement or situational substitute for the cigarette.

Methods: A Boolean search string was used to search R.

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In August 2006, U.S. District Court Judge Gladys Kessler ordered four tobacco companies to disseminate court-approved corrective statements on five topics pertaining to health hazards of cigarette smoking.

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The high prevalence of smoking in persons living with HIV (PLWH) warrants an accurate estimation of smokers' receipt of advice on smoking cessation. Prior studies on the topic have been limited by convenience samples. This study aims to be the first to estimate PLWH smokers' receipt of cessation advice from a healthcare professional in a nationally representative sample.

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Introduction: Finland's success in achieving the goal of its tobacco endgame largely depends on rectifying deficiencies in the delivery of smoking cessation services. One such weakness, which has not been documented with empirical data, is misuse of nicotine replacement therapy (NRT). This study's objective was to examine purchase patterns of NRT for estimating improper use of the medication.

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Background: Several studies indicate an association between e-cigarette use and subsequent smoking among youth. However, most previous studies lack measures of the nicotine content of e-liquid and have not usually measured regular smoking.

Methods: We tested the association between e-cigarette use, with and without nicotine, and subsequent daily use of conventional cigarettes and nicotine e-cigarettes among study population of 3474 students.

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Objectives: Finland boldly legislated the end of tobacco use in its 2010 Tobacco Act, and subsequently expanded the goal in 2016 to eradicate other nicotine-containing products. This study explored stakeholders' perceptions about the strengths, barriers, solutions and rationale for Finland's comprehensive but conventional strategy to achieve its nicotine-free goal.

Design: Study participants were selected based on expertise in policy or practice of tobacco control (n=32).

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Introduction: Finland implemented a point-of-sale (POS) display ban for tobacco products and their trademarks in 2012, and for electronic cigarettes in 2016. In this study we examine whether noticing tobacco products changed among adolescents after the implementation of the display ban and describe the noticing of e-cigarette displays post-implementation.

Methods: Repeated cross-sectional national survey data of 12-to 16-year-olds from years 2011, 2013, 2015 and 2017 were used.

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The uneven diffusion of local and state laws restricting the use of electronic nicotine delivery systems (ENDS) in the United States may be a function of inconclusive scientific evidence and lack of guidance from the federal government. The objective of this study was to assess whether the rationale for amending clean indoor air acts (CIAAs) is being conflated by issues that are not directly relevant to protecting the health of ENDS non-users. Online sources were used in identifying bills ( = 25) that were presented in U.

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Background: Ethnographers have reported that young, urban males embraced blunt smoking in response to the crack cocaine epidemic that ravaged their neighborhoods in the 1980s. But, recent survey data has indicated high rates of other illicit drug use among blunt smokers.

Objectives: The objective of this study was to examine the association between blunt smoking and cannabis acquisition as a potential explanation for the correlation with other illicit drug use.

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Introduction: Recent studies have separately examined the content and demographic reach of the advertising of electronic nicotine delivery systems (ENDS). No study to our knowledge has linked the two in investigating whether racial/ethnic groups are differentially exposed to the comparative messages conveyed in online ENDS advertisements.

Methods: 932 unique ENDS advertisements (6311 total), which were posted on 3435 websites between December, 2009 and October, 2015, were categorized as either comparative or non-comparative with respect to the traditional cigarette.

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Few studies in the United States have examined longitudinally the mortality risks associated with use of smokeless tobacco (SLT). The sample of our study was composed of participants from the National Longitudinal Mortality Study who completed a single Tobacco Use Supplement to the Current Population Survey between the years 1985 and 2011. Using survival methods, SLT use at the baseline survey was examined as a predictor of all-cause mortality and cause-specific mortalities in models that excluded individuals who had ever smoked cigarettes, cigars or used pipes (final n = 349,282).

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Objective: Restricting tobacco marketing is a key element in the US Food and Drug Administration's (FDA) public health framework for regulating tobacco. Given the dearth of empirical data on direct marketing, the objective of this study was to assess the reach and impact of promotions on sales through snuff websites.

Methods: Nine brands of snuff, representing more than 90% of market share, were monitored for content of coupons, sweepstakes, contests, and other promotions on their respective websites.

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Background: Cross-sectional data suggests that adolescents' receptivity to the advertising of smokeless tobacco is correlated with use of chewing tobacco or snuff. Lack of longitudinal data has precluded determination of whether advertising receptivity precedes or follows initiation of smokeless tobacco.

Objectives: The objective of this study was to test for the association between advertising receptivity and subsequent initiation of smokeless tobacco among adolescent males.

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Introduction: Brand of smokeless tobacco was added to the most recent Tobacco Use Supplement to the Current Population Survey (TUS-CPS), but deleted from the Centers for Disease Control's National Adult Tobacco Survey. The objective of this study was to assess the utility of brand in distinguishing users of moist snuff.

Methods: The sample consisted of participants from the 2010-2011 TUS-CPS who reported having used one of 14 brands of moist snuff in the past month (n = 2334).

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Introduction: The objective of this study was to assess whether the nascent, but rapidly growing e-liquid industry prohibits Internet sales to minors and employs safety measures to prevent accidental poisonings.

Methods: A stratified simple random sample (n = 120) was selected from the target population (N = 1107) of US online vendors of e-liquid in July 2015. The vendors were stratified and subsequently oversampled by trade association membership and vendor popularity.

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