Publications by authors named "Kenneth E Warner"

Article Synopsis
  • This study updates previous research on cigarette and heated tobacco product (HTP) sales trends in Japan from 2011 to 2023, using full unit sales data instead of partial data.
  • Researchers analyzed sales data using joinpoint regression to identify trends for cigarettes, HTPs, and their combined sales over the years.
  • The results showed a dramatic decline in cigarette sales (52.6% per capita) and a significant rise in HTP sales, indicating that while cigarette sales are dropping, HTPs are becoming more popular.
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Introduction: Little is known about how quitting and switching to other tobacco products affects cigarette smoking relapse. Additionally, there is no consensus on the best definition of relapse.

Aims And Methods: Respondents who smoked cigarettes at baseline, had quit by the first follow-up, and completed the second follow-up survey in the Population Assessment of Tobacco and Health Study were included.

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Introduction: Quantifying the impact of smoking on life expectancy and the potential benefits of smoking cessation is crucial for motivating people who smoke to quit. While previous studies have attempted to estimate these effects, they were conducted more than a decade ago and did not include a significant demographic, people over 65 years old who smoke.

Methods: Mortality rates by age and smoking status were calculated using mortality relative risks derived from Cancer Prevention Study II, 2018 National Health Interview Survey smoking prevalence data, 2018 U.

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Introdution: Studies have reported that the rapid rise in heated tobacco product (HTP) sales in Japan accompanied an accelerated decline in cigarette sales. However, these studies do not distinguish whether those who previously smoked cigarettes became dual users with HTPs (smoking fewer cigarettes) or instead switched completely to HTPs. If HTPs present lower health risks than cigarettes, replacing cigarettes with HTPs is more likely to improve public health than cigarette users continuing as dual users.

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Introduction: Oral nicotine pouches (ONPs) are a new class of nicotine products. This scoping review summarizes evidence on ONPs and explores their potential public health impact.

Aims And Methods: We conducted a structured literature search for empirical studies across three electronic databases through January 10, 2024.

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Introduction: The often-cited Centers for Disease Control and Prevention (CDC) estimate of 480,000 annual U.S. smoking-attributable deaths (SADs), including 439,000 first-hand smoke deaths, derives from 2005 to 2009 data.

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Introduction: The popularity of cannabis vaping has increased rapidly, especially among adolescents and young adults. We posit some possible explanations and, to evaluate them, examine whether cannabis vapers differ from non-vaping cannabis users in other substance use.

Methods: Using nationally representative data from the Population Assessment of Tobacco and Health (PATH) Study wave 5 (Dec.

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Article Synopsis
  • President Biden has made fighting smoking a priority in efforts to reduce cancer deaths, highlighting its significance in public health initiatives.
  • A cross-sectional study analyzed data from the National Health Interview Surveys (2011-2022) to examine smoking trends among U.S. adults, focusing on demographics like age, income, education, and race.
  • The study found a significant decline in smoking prevalence among younger adults (18-24) but little change among older adults (65+), with notable increases in smoking among lower-income older adults, indicating ongoing disparities in smoking behaviors.
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Background: Tracking the US smoking cessation rate over time is of great interest to tobacco control researchers and policymakers since smoking cessation behaviors have a major effect on the public's health. Recent studies have employed dynamic models to estimate the US cessation rate through observed smoking prevalence. However, none of those studies has provided annual estimates of the cessation rate by age group.

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Article Synopsis
  • Philip Morris International (PMI) has acquired Swedish Match, signaling a significant shift towards noncombustible nicotine delivery products (NCNDPs) as PMI moves away from traditional cigarette sales.
  • This acquisition could influence other tobacco firms to focus on NCNDPs, especially in the U.S., where PMI is restricted from selling cigarettes.
  • The implications of this deal are broad, as PMI’s strategies could impact the use of nicotine pouches, e-cigarettes, and heated tobacco products while potentially reducing cigarette sales, necessitating further observation of tobacco industry transformations.
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Objective: Tracking the US smoking cessation rate over time is of great interest to tobacco control researchers and policymakers since smoking cessation behaviors have a major effect on the public's health. A couple of recent studies have employed dynamic models to estimate the US cessation rate through observed smoking prevalence. However, none of those studies has provided recent annual estimates of the cessation rate by age group.

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Purpose: The current study assessed the association between cannabis use among youth never e-cigarette users and subsequent e-cigarette use.

Methods: The Population Assessment of Tobacco and Health Study is a nationally representative cohort study. Participants aged 12 years and older were selected using a 4-stage, stratified probability sample design from the US civilian, noninstitutionalized population.

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Article Synopsis
  • This systematic review investigates the effectiveness of electronic nicotine delivery systems (ENDS) flavors in helping individuals quit smoking, analyzing various studies on this topic.
  • A total of 29 studies were included, focusing on quit intentions, attempts, and success rates, but the overall certainty of evidence was low regarding the impact of ENDS flavors on smoking cessation.
  • The study concludes that the current evidence is inconclusive due to inconsistent definitions and methods across studies, highlighting the need for more robust research, particularly randomized controlled trials.
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Importance: Many studies have reported a positive association of youth electronic cigarette (e-cigarette) use with subsequent cigarette smoking initiation, but it remains unclear whether e-cigarette use is associated with continued cigarette smoking after initiation.

Objective: To assess the association of youth baseline e-cigarette use with their continued cigarette smoking 2 years after initiation.

Design, Setting, And Participants: The Population Assessment of Tobacco and Health (PATH) Study is a national longitudinal cohort study.

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Objective: To synthesize the outcomes of policy evaluations of flavoured electronic nicotine delivery systems (ENDS) restrictions.

Data Sources: PubMed, Scopus, Embase and Web of Science before May 3, 2022.

Study Selection: Studies that report sales, behaviour, or compliance outcomes related to implemented or hypothetical ENDS flavour restrictions.

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Growth in the market for electronic cigarettes (e-cigarettes) raises complex questions about the devices' public health implications and, hence, challenging policy issues. We propose a policy agenda addressing concerns about preventing youth uptake of e-cigarettes and the desire to realize the potential of e-cigarettes to increase adult cigarette smoking cessation. We organize interventions according to the "four Ps" of marketing: product, price, place, and promotion.

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E-cigarettes are often marketed as a safer alternative to combustible cigarettes. However, their health effects, especially those associated with long-term use, remain largely uncertain. We conducted an umbrella review of the cardiopulmonary and carcinogenic risks of e-cigarette use, distinguishing between short-term and long-term health effects.

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Article Synopsis
  • E-cigarette use among adolescents has been linked to a higher likelihood of starting cannabis use a year later, particularly in those who had not previously used cannabis.
  • The study analyzed data from the Population Assessment of Tobacco and Health (PATH) Study, focusing on 9,828 cannabis-naive adolescents to assess the impact of e-cigarette usage over one year.
  • Findings indicated that e-cigarette use significantly increased the chances of both past 12-month and past 30-day cannabis use, with adjusted relative risks between 2.57 and 2.62, even after accounting for various factors.
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Introduction: We calculate the U.S. adult smoking cessation rate for 2014-2019, compare it to the historical trend, and estimate the implication for future smoking prevalence.

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