Publications by authors named "Ryan D Kennedy"

Introduction: Some manufacturers of electronic nicotine delivery systems (ENDS) and liquids sell products with flavor names that use ambiguous terminology rather than explicitly characterize the product's flavor. These are often referred to as 'concept flavors'. This article presents a sample of ENDS concept flavor names to identify naming conventions the industry uses.

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Background: Community organizers in Southern Delaware County, PA, expressed a desire to collect comprehensive data on environmental, health, and social conditions in their neighborhoods to inform advocacy efforts to prompt public health action.

Methods: Using a community-based participatory research (CBPR) approach, our team of academic and community coinvestigators developed an online community health survey to characterize residents' health concerns and the strengths, burdens, and needs of fenceline communities in Southern Delaware County. We included questions on chemical exposures, sources of pollution, financial stressors, health care, medical conditions, and priorities for policymakers.

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Objective: Delta-8 tetrahydrocannabinol (delta-8 THC) cannabis products proliferated in the United States (US) following the 2018 Farm Bill and are marketed in Canada. This study assessed characteristics and marketing appeals shown on exterior product packaging for a sample of US and Canadian delta-8 THC products.

Method: Delta-8 THC packaging photos were obtained from US and Canadian respondents from the 2021 and 2022 International Cannabis Policy Study.

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Introduction: Tobacco companies invest heavily in marketing, which significantly impacts youth tobacco use through advertising receptivity. Despite policies restricting tobacco marketing to youth under age 21, many adolescents and young adults nonetheless report finding tobacco marketing appealing. This analysis aimed to identify which advertising strategies most appeal to young adults ages 18-20.

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In 2019, we launched a web-based longitudinal survey of adults who frequently use e-cigarettes, called the Vaping and Patterns of E-cigarette Use Research (VAPER) Study. The initial attempt to collect survey data failed due to fraudulent survey submissions, likely submitted by survey bots and other survey takers. This paper chronicles the journey from that setback to the successful completion of 5 waves of data collection.

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Introduction: Since 2016, the US Food and Drug Administration (FDA) has required e-cigarette packaging and advertising to bear the warning: "WARNING: THIS PRODUCT CONTAINS NICOTINE. NICOTINE IS AN ADDICTIVE CHEMICAL." Nicotine has numerous adverse consequences besides addiction, including increased anxiety and depression symptoms that arise from nicotine withdrawal.

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Article Synopsis
  • Nicotine pouches have gained popularity since their 2016 US debut, raising concerns about their appeal to youth and non-nicotine users, prompting a study on advertising trends from 2021 to 2023.
  • The analysis covered 2,147 ads across various platforms and revealed that 84.6% were on social media, with Zyn being the most prominent brand, and most ads promoting flavored products, particularly fruit and mint.
  • Findings indicated a decline in terms linking nicotine pouches to tobacco products, while convenience claims increased, suggesting a need for further research on how these marketing strategies impact perceptions and use, especially among youth.
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 Many people who smoke cigarettes report believing that nicotine causes cancer, a misperception that may reduce interest in switching to noncombustible nicotine products. Quantitative survey questions do not capture how this population thinks about nicotine and switching to noncombustible products.  This study used an online convenience sample of 193 US adults who smoke cigarettes and reported that nicotine causes cancer.

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Introduction: The tobacco industry has a long history of circumventing regulations to present their products, inaccurately, as less harmful. Greenwashing (portraying a product as natural/eco-friendly) is increasingly used by tobacco companies and may mislead consumers to believe that certain cigarettes are less harmful than others. This study assesses the effect of some common greenwashing tactics on consumer product perceptions.

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Background: Electronic nicotine delivery systems (ENDS) use one of two formulations of nicotine-freebase or nicotine salt. This study examines whether maintenance or switching between nicotine formulations is associated with ENDS dependence using longitudinal survey data.

Methods: 543 U.

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Background: Soil is an understudied and underregulated pathway of chemical exposure, particularly for agricultural workers who cultivate food in soils. Little is known about how agricultural workers spend their time and how they may contact soil while growing food. Exposure factors are behavioral and environmental variables used in exposure estimation.

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Introduction: Banning Point-of-Sale (POS) advertising and product display is an important tobacco control strategy. Depok, Indonesia enacted some regional tobacco control policies regulating the POS environment in 2021. This study examined changes in compliance before and after the implementation of these policies as of 2021.

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Introduction: In recent years, hundreds of jurisdictions around the world have enacted policies that prohibit sales of flavored e-cigarettes. In most cases, these jurisdictions permit the sale of tobacco flavored e-cigarettes. We sought to understand how tobacco flavor in e-cigarette advertisements were presented.

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Background: Tobacco product litter may be a form of postconsumption marketing if the littered items are branded. We conducted an observational study in India to assess the presence of tobacco product litter and determine the proportion that included branding.

Methods: During November-December 2022, we identified tobacco product litter (cigarette/bidi butts and packaging; smokeless tobacco packaging) in nine Indian cities: Bengaluru, Bhubaneswar, Chennai, Delhi, Guwahati, Hyderabad, Lucknow, Mumbai and Patna.

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Despite the success of the Framework Convention on Tobacco Control (FCTC), most jurisdictions in the world do not have policies that create 100% smoke-free environments in indoor workplaces, indoor public places, public transport, or other public places. We conducted a narrative review of articles that discuss smoke-free policies and describe the state of the current literature. A search of peer-reviewed and gray literature, published between 1 January 2004 and 30 April 2022, was conducted using PubMed and EMBASE databases.

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Background: Longitudinal cohort studies are critical for understanding the evolution of health-influencing behaviors, such as e-cigarette use, over time. Optimizing follow-up rates in longitudinal studies is necessary for ensuring high-quality data with sufficient power for analyses. However, achieving high rates of follow-up in web-based longitudinal studies can be challenging, even when monetary incentives are provided.

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Introduction: Electronic nicotine delivery system (ENDS) and liquid characteristics affect nicotine and toxicant exposure and use behaviors. Little is known about how adults who frequently use ENDS transition between ENDS device/liquid groupings.

Methods: A total of 379 US adults (≥21 years) using ENDS frequently (≥5 days/week) self-reported and uploaded photos of their most used ENDS device and liquid in three waves of online surveys (May 2020 - November 2021).

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Article Synopsis
  • - Oral nicotine pouches (ONPs) are marketed as tobacco-free products containing crystalized nicotine powder and are available in various flavors; however, research on their usage and user experiences is limited.
  • - A survey of 118 adults using ONPs revealed that most participants also used traditional tobacco cigarettes or e-cigarettes, with flavor availability being the main motivation for use, and significant dependence levels identified.
  • - Adverse events reported included mouth lesions and stomach issues, and while the study's small and specific sample may limit the findings, it highlights the need for further research on ONP usage and its effects.
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The tobacco industry has historically targeted flavored products to specific U.S. consumer segments, including young people, women, and systemically marginalized groups based on race, ethnicity, or sexual/gender identity.

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Objectives: Electronic nicotine delivery systems (ENDS) products come in a variety of flavours (eg, fruit, dessert, menthol). Tobacco advertising has historically used flavours as an advertising tactic, but little is known about flavour type and prevalence in ENDS advertisements. We assess the presence of flavoured ENDS in ads over time, by media outlet (eg, magazines, online) and brand.

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Introduction: In 2020, the U.S. Food and Drug Administration authorized the marketing of IQOS as a modified risk tobacco product (MRTP) with reduced exposure information (reduces exposure to harmful chemicals compared to cigarettes) but prohibited Philip Morris International from making reduced risk claims (reduces risk of disease compared to cigarettes).

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Introduction: Research has identified many factors associated with bicycling, but little is known on their relative influence for an individual's decision to bicycle or what led to the surge in bicycling during the COVID-19 pandemic in the U.S.

Methods: Our research leverages a sample of 6735 U.

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