Use of Mentholated Cigarettes and Likelihood of Smoking Cessation in the United States: A Meta-Analysis

Vaping: Public Health, Social Media, and Toxicity

This viewpoint aims to provide a comprehensive understanding of vaping from various perspectives that contribute to the invention, development, spread, and consequences of e-cigarette products and vaping. Our analysis showed that the specific characteristics of e-cigarette products as well as marketing strategies, especially social media marketing, fostered the spread of vaping and the subsequent effects on human health and toxicity. We analyzed the components of e-cigarette devices and e-liquids, including the latest variants whose impacts were often overlooked. The different forms of nicotine, including salts and freebase nicotine, tobacco-derived nicotine, tobacco-free nicotine, and cooling agents (WS3 and WS23), have brought more choices for vapers along with more ways for e-cigarette manufacturers to advertise false understandings and present a greater threat to vapers' health. Our work emphasized the products of brands that have gained significant influence recently, which are contributing to severe public health issues. On the other hand, we also discussed in detail the toxicity of e-liquid components and proposed a toxicity mechanism. We also noticed that nicotine and other chemicals in e-liquids promote each other's negative effects through the oxidative stress and inflammatory nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) pathway, a mechanism leading to pulmonary symptoms and addiction. The impact of government regulations on the products themselves, including flavor bans or regulations, has been limited. Therefore, we proposed further interventions or harm reduction strategies from a public health perspective.

Optimizing behavioral and pharmacological smoking cessation interventions among people with HIV

BACKGROUND

People with HIV/AIDS (PWH) smoke at nearly three times the rate of the general population. Interventions to promote sustained quitting among PWH are urgently needed.

METHODS

Our study used a randomized factorial design to evaluate the effects of varenicline, compared with placebo, and behavioral cessation therapy, positively smoke free (PSF), compared with standard of care (SOC) among PWH who smoke. The study was designed with power to detect a small effect (Cohen's h of 0.28-0.36) with 240 participants. The primary outcome was the 7-day point prevalence abstinence (PPA) confirmed by exhaled carbon monoxide (ECO) less than 10 ppm for both main effects at 36 weeks. The study was conducted from June 2016 to November 2020. During the study's last year, recruitment was halted because of COVID-19.

RESULTS

The study randomized 184 participants with power to detect a medium effect (Cohen's h of 0.41). Participants were mostly African American (89.7%), men (62.8%) who smoked mentholated cigarettes (96.7%). Nearly all received antiretroviral medication (96.2%). Quit rates for the entire sample were 7.5% at 36 weeks. Compared with those who received placebo, neither those who received varenicline [36 weeks; OR (95% CI), 1.31 (0.33-5.22), P  = 0.70] nor PSF [36 weeks; OR (95% CI), 0.26 (0.03-2.44), P  = 0.24) were more likely to quit smoking.

CONCLUSION

Among an urban living, primarily African American sample of PWH who smoke neither varenicline nor PSF was found to be efficacious at 36 weeks. Our study was not powered to detect small effects sizes. Larger trials are needed to establish tobacco treatment standards for PWH who smoke.

Addiction potential of combustible menthol cigarette alternatives: a randomised cross-over trial

INTRODUCTION

The Food and Drug Administration (FDA) has issued proposed product standards banning menthol as a characterising flavour in cigarettes and cigars. The public health benefits of these product standards may be attenuated by the role of plausible substitutes in the marketplace. Therefore, the present study examined the addiction potential of plausible combustible menthol alternatives compared with usual brand menthol cigarettes (UBMC).

METHODS

Ninety-eight adult menthol cigarette smokers completed four visits, smoking their UBMC at the first session and three menthol cigarette alternatives in random order at the subsequent visits: (1) a preassembled menthol roll-your-own (mRYO) cigarette using menthol pipe tobacco and mentholated cigarette tube, (2) a menthol filtered little cigar (mFLC) and (3) a non-menthol cigarette (NMC). Measures of smoking topography, exhaled carbon monoxide (CO), craving and withdrawal, subjective effects and behavioural economic demand indices were assessed.

RESULTS

Compared with UBMC, menthol cigarette alternatives resulted in different puffing topography and CO exposure (except mRYO), and lower levels of positive subjective experience and behavioural economic demand indices. Among the alternative products, participants reported the highest level of positive subjective experience and higher demand for mRYO, compared with mFLC and NMC. Similarly, participants were significantly more likely to want to try again, purchase and use the mRYO product regularly compared with mFLC and NMC.

CONCLUSIONS AND RELEVANCE

mRYO cigarettes were the most highly rated cigarette alternative among study products, suggesting their potential appeal as a menthol cigarette substitute and needed inclusion of menthol pipe tobacco and cigarette tubes in FDA's proposed ban.

Menthol and Other Flavor Chemicals in Cigarettes from Vietnam and the Philippines

INTRODUCTION

Tobacco product flavors can increase product appeal, adolescent initiation and experimentation, and difficulty quitting. Flavored tobacco products are not restricted in Vietnam or the Philippines despite the high smoking prevalence among those 15 years of age and older (24% and 23%, respectively). There are no published reports to our knowledge on the levels of flavor chemicals in the cigarettes sold in these two countries.

METHODS

Cigarettes were purchased in Vietnam (32 brand variants) and the Philippines (19 brand variants) during 2020. Chemical analyses gave the mg/filter, mg/rod, and mg/stick (= mg/(filter + rod)) values for 180 individual flavor chemicals. Values were calculated for menthol, clove-related compounds, and "other flavor chemicals" (OFCs).

RESULTS

Five flavor groupings were found among the brand variants purchased in Vietnam: menthol + OFCs (n = 15), OFCs only (n = 8), nonflavored (n = 7), menthol + OFCs with a clove flavorant (n = 1) and menthol only (n = 1). Three flavor groupings were found among the brand variants purchased in the Philippines: menthol + OFCs (n = 10), nonflavored (n = 5), and menthol only (n = 4).

CONCLUSIONS

A range of flavored cigarette products are being offered by tobacco companies in Vietnam and the Philippines, presumably to maximize cigarette sales. Regulation of flavor chemicals should be considered in these two countries.

IMPLICATIONS

Article 9 of the WHO Framework Convention on Tobacco Control (FCTC), ratified by both Vietnam and the Philippines, states that "there is no justification for permitting the use of ingredients, such as flavoring agents, which help make tobacco products attractive." Flavors increase product appeal, adolescent initiation and experimentation, and difficulty quitting. These analyses found that cigarettes purchased in Vietnam and the Philippines contained menthol and other flavor chemicals. Tobacco companies are offering multiple flavor chemical profiles and nominally nonflavored versions in these countries; regulation of flavor chemicals should be considered in these two countries.

Peppermint and menthol: a review on their biochemistry, pharmacological activities, clinical applications, and safety considerations

In this manuscript, we conducted a comprehensive review of the diverse effects of peppermint on human health and explored the potential underlying mechanisms. Peppermint contains three main groups of phytochemical constituents, including essential oils (mainly menthol), flavonoids (such as hesperidin, eriodictyol, naringenin, quercetin, myricetin, and kaempferol), and nonflavonoid phenolcarboxylic acids. Peppermint exhibits antimicrobial, antioxidant, anti-inflammatory, immunomodulatory, anti-cancer, anti-aging, and analgesic properties and may be effective in treating various disorders, including gastrointestinal disorders (e.g., irritable bowel syndrome, dyspepsia, constipation, functional gastrointestinal disorders, nausea/vomiting, and gallbladder stones). In addition, peppermint has therapeutic benefits for psychological and cognitive health, dental health, urinary retention, skin and wound healing, as well as anti-depressant and anti-anxiety effects, and it may improve memory. However, peppermint has paradoxical effects on sleep quality and alertness, as it has been shown to improve sleep quality in patients with fatigue and anxiety, while also increasing alertness under conditions of monotonous work and relaxation. We also discuss its protective effects against toxic agents at recommended doses, as well as its safety and potential toxicity. Overall, this review provides the latest findings and insights into the properties and clinical effects of peppermint/menthol and highlights its potential as a natural therapeutic agent for various health conditions.

Public health impact of a US menthol cigarette ban on the non-Hispanic black population: a simulation study

INTRODUCTION

With the US Food and Drug Administration recently proposing to implement a ban on menthol cigarettes, it is critical to estimate the potential public health effects of such a ban. With high rates of menthol cigarette use and important smoking-related health disparity implications, the impact of the ban on the non-Hispanic black (NHB) population merits strong consideration.

METHODS

We apply the previously developed Menthol Smoking and Vaping Model to the NHB population. A status quo scenario is developed using NHB-specific population, smoking and vaping initiation, cessation and death rates. Estimates from a recent expert elicitation on behavioural impacts of a menthol cigarette ban on the NHB population are used to develop a menthol ban scenario implemented in 2021. The public health impacts of the menthol ban are estimated as the difference between smoking and vaping attributable deaths (SVADs) and life years lost (LYLs) in the status quo and the menthol ban scenarios from 2021 to 2060.

RESULTS

Under the menthol ban scenario, overall smoking is projected to decline by 35.7% in 2026 and by 25.3% in 2060 relative to the status quo scenario. With these reductions, SVADs are estimated to fall by about 18.5% and LYLs by 22.1%, translating to 255 895 premature deaths averted, and 4.0 million life years gained over a 40-year period.

CONCLUSIONS

A menthol cigarette ban will substantially reduce the smoking-associated health impact on the NHB population, thereby reducing health disparities.

Smoking cessation prevalence by menthol cigarette use and select demographics among adults in the United States, TUS-CPS, 2003-2019

People who smoke menthol cigarettes, particularly those who are non-Hispanic Black/African American, are less likely to achieve successful smoking cessation compared with people who smoke non-menthol cigarettes. This study examined the 2003-2019 Tobacco Use Supplement to the Current Population Survey (TUS-CPS) harmonized data to estimate cross-sectional trends in cigarette smoking cessation among U.S. adults, stratified by menthol cigarette use, race/ethnicity, sex, and age. The analytic sample included respondents who smoked for ≥ 2 years (current users and former users who reported quitting during the past year). We tested cessation trends using orthogonal polynomial contrasts for overall, menthol, and non-menthol smoking cessation prevalence and stratified by race/ethnicity, sex, and age in logistic regression models. We also analyzed the 2018-2019 non-harmonized TUS-CPS data among recent quitters to examine differences in characteristics (e.g., demographic characteristics, smoking frequency, use of smoking cessation aids, switching to other tobacco products) by menthol cigarette use. We observed significant linear changes in prevalence trends for overall cigarette smoking cessation, menthol smoking cessation, and non-menthol smoking cessation (p < 0.0001 for all linear trends), and changes in menthol cessation among non-Hispanic White and non-Hispanic Other race/ethnicity categories during 2003-2019. In the 2018-2019 wave, we observed differences in menthol status for sex, race/ethnicity, age, and educational attainment. We did not observe differences for other characteristics. We observed changes in overall cigarette smoking cessation, menthol, and non-menthol smoking cessation prevalence during the study period; however, gains in cigarette smoking cessation were not experienced among non-Hispanic Black/African American adults who smoke.

Life's essential eight as targets for cardiometabolic risk reduction among non-Hispanic black adults: A primary care approach

Cardiovascular diseases remain the leading cause of death in the United States. Several studies have shown racial disparities in the cardiovascular outcomes. When compared to their Non-Hispanic White (NHW) counterparts, non-Hispanic Black (NHB) individuals have higher prevalence of cardiovascular risk factors and thus, increased mortality from atherosclerotic cardiovascular diseases. This is evidenced by lower scoring in the indices of the American Heart Association's Life Essential 8 among NHB individuals. NHB individuals score lower in blood pressure, blood lipids, nicotine exposure, sleep, physical activity level, glycemic control, weight, and diet when compared to NHW individuals. Measures to improve these indices at the primary care level may potentially hold the key in mitigating the health care disparities in cardiovascular health experienced by NHB individuals.

Pain and Menthol Use Are Related to Greater Nicotine Dependence Among Black Adults Who Smoke Cigarettes at Wave 5 (2018-2019) of the Population Assessment of Tobacco and Health (PATH) Study

Burdens related to pain, smoking/nicotine dependence, and pain-smoking comorbidity disproportionately impact Black Americans, and menthol cigarette use is overrepresented among Black adults who smoke cigarettes. Menthol may increase nicotine exposure, potentially conferring enhanced acute analgesia and driving greater dependence. Therefore, the goal of the current study was to examine associations between pain, menthol cigarette use, and nicotine dependence. Data was drawn from Black adults who were current cigarette smokers (n = 1370) at Wave 5 (2018-2019) of the Population Assessment of Tobacco and Health Study. Nicotine dependence was assessed using the Wisconsin Inventory of Smoking Dependence Motives. ANCOVA revealed that moderate/severe pain (vs. no/low pain) was associated with greater overall nicotine dependence (p < .001) and greater negative reinforcement, cognitive enhancement, and affiliative attachment smoking motives (ps < .001). Menthol smokers with moderate/severe pain also endorsed greater cigarette craving and tolerance, compared to non-menthol smokers with no/low pain (ps < .05). Findings support the notion that among Black individuals who smoke cigarettes, the presence of moderate/severe pain (vs. no/low pain) and menthol use may engender greater physical indices of nicotine dependence relative to non-menthol use. Compared to no/low pain, moderate/severe pain was associated with greater emotional attachment to smoking and greater proclivity to smoke for reducing negative affect and enhancing cognitive function. Clinical implications include the need to address the role of pain and menthol cigarette use in the assessment and treatment of nicotine dependence, particularly among Black adults. These data may help to inform evolving tobacco control policies aimed at regulating or banning menthol tobacco additives.

Racial/ethnic differences in the association between menthol cigarette use and mental illness among adults who smoke in the United States

Data from the National Survey on Drug Use and Health (2012-2018) were used to characterize the association between menthol cigarette use and indicators of Any (AMI) and Serious (SMI) Mental Illness among adults who smoke in the United States. In general, people who smoke menthol cigarettes were more likely to have AMI (aOR = 1.123 [1.063-1.194]) than people who smoke non-menthol cigarettes, but not SMI (aOR = 1.065 [0.966-1.175]). However, among non-Hispanic African American/Black people who smoke, those that used menthol cigarettes had lower adjusted odds of both AMI (aOR = 0.740 [0.572-0.958]) and SMI (aOR = 0.592 [0.390-0.899]) than their counterparts who used non-menthol cigarettes. Results suggest there may be race/ethnicity-specific drivers of the association between menthol cigarette use and mental illness.

Effects of menthol use and transitions in use on short-term and long-term cessation from cigarettes among US smokers

OBJECTIVES

To estimate the effect of menthol use and transitions in use (switching to or from menthol) on short-term and long-term cessation from cigarette smoking and whether this differed across demographic groups (age, sex, race).

METHODS

We compared the probability of 30+ day and 12-month abstinence from cigarette smoking by menthol use status using two cohorts of US adult cigarette smokers who attempted to quit smoking in the Population Assessment of Tobacco and Health (wave 1 to wave 3 and wave 2 to wave 4; n=5759), inverse probability of treatment weighting and adjusted risk ratios (aRRs).

RESULTS

Using menthol (vs non-menthol) prior to a quit attempt decreased the probability of 30+ day abstinence by 28% (aRR=0.78; 95% CI 0.67 to 0.91) and the probability of 12-month abstinence by 53% (aRR=0.65; 95% CI 0.47 to 0.88). Additionally, switching from menthol (vs maintaining menthol use) increased the probability of 30+ day abstinence by 58% (aRR=1.58; 95% CI 1.00 to 2.50) and the probability of 12-month abstinence by 97% (aRR=1.86; 95% CI 0.92 to 3.74). Switching to menthol (vs maintaining non-menthol use) was associated with a lower probability of 30+ day (aRR=0.70; 95% CI 0.42 to 1.16) and 12-month abstinence (aRR=0.64; 95% CI 0.30 to 1.36), but these associations were imprecise. The effects of menthol use on impaired quitting were slightly larger for non-Hispanic Black smokers, but not different for other demographic groups.

CONCLUSION

These results demonstrate that menthol impaired menthol smokers' attempts to quit smoking but switching from menthol improved success. This suggests that removing menthol may improve menthol smokers' success during quit attempts.

Manipulation of Menthol and Nicotine Content in Cigarettes: Effects on Smoking Behavior and Toxicant Exposure in Women Menthol Smokers

BACKGROUND

The purpose of this study was to determine the effects of smoking and other outcomes of assigning cigarettes with reduced nicotine and/or no menthol to female menthol smokers.

AIMS AND METHODS

Nontreatment-seeking female menthol smokers (N = 263) participated in a randomized controlled trial in which levels of menthol and nicotine in cigarettes were manipulated using experimental cigarettes. After a baseline period, participants were assigned to the following conditions for 6 weeks: (1) their own brand of cigarette (conventional nicotine with menthol), (2) a conventional nicotine cigarette with no menthol, (3) a cigarette with reduced nicotine (RNC) with menthol, or (4) a RNC cigarette and no menthol. Participants then returned to using their own brand and were followed for another 6 weeks. Outcomes included cigarettes smoked, biomarkers of exposure, and dependence measures.

RESULTS

Results indicated that, after an initial increase, rates of smoking of all three experimental cigarettes were at or below baseline rates of smoking of one's own brand. Levels of biomarkers also decreased during the experimental phase but rebounded somewhat after participants resumed smoking their own brand. There was evidence that the overall amount of smoking decreased similarly among women who switched to non-menthol and/or RNC cigarettes.

CONCLUSIONS

These results suggest that no detrimental effect will occur in nicotine or toxicant exposure levels with a ban on characterizing menthol and/or a product standard on nicotine content in cigarettes.

IMPLICATIONS

The implication of this work is that there would be no risk to women menthol smokers associated with regulations restricting nicotine and eliminating menthol in cigarettes.

Factors Associated With Smoking Cessation Attempts in Lung Cancer Screening: A Secondary Analysis of the National Lung Screening Trial

BACKGROUND

Lung cancer remains the leading cause of cancer-related mortality in the United States. The National Lung Screening Trial (NLST) demonstrated a 20% reduction in lung cancer mortality resulting from lung cancer screening (LCS) with an additive reduction from smoking abstinence. However, successful smoking cessation within LCS is variable.

RESEARCH QUESTION

What patient and treatment factors are associated with attempts to quit smoking among those screened for lung cancer?

STUDY DESIGN AND METHODS

In a secondary analysis of the American College of Radiology Imaging Network arm of the NLST, patient demographics, patient smoking behaviors, and tobacco treatment variables were stratified by patient smoking status. The Cox proportional hazards ratio was used to evaluate each variable's effect on attempting to quit smoking.

RESULTS

Seven thousand three hundred sixty-nine patients were smoking actively at enrollment in the NLST. Of the patients who reported they were smoking, 73.4% did not receive any pharmacologic tobacco treatment. More patients who attempted to quit received pharmacologic tobacco treatment than those who continued to smoke: (nicotine replacement therapy [NRT], 18.0% vs 12.4% [P < .01]; bupropion, 7.9% vs 6.9% [P = .02]; both NRT and bupropion, 5.6% vs 3.9% [P < .01]). Stable users were more likely to be women (47.8% vs 43.8%; P < .01), to be African American (8.2% vs 6.3%; P = .007), to be unmarried (43.2% vs 36.9% [P < .01]), and to have less than a college education (47.7% vs 42.3%; P < .01). Patients with high dependence who received dual therapy with bupropion and NRT showed the highest likelihood of quit attempt (hazard ratio, 2.07; 95% CI, 1.75-2.44).

INTERPRETATION

In this analysis, only one-quarter of patients who underwent LCS and who smoked were treated with pharmacologic therapy, which is associated with increased likelihood of attempting to quit. Certain characteristics are associated with difficulty with attempting to quit smoking. Those with high nicotine dependence benefitted most from dual pharmacologic therapy.

Effect of restricting menthol flavored cigarettes or E-cigarettes on smoking behavior in menthol smokers

Bans of menthol characterizing flavor in tobacco products have been enacted in some localities and proposed in the United States for cigarettes. To gather data regarding how restrictions for menthol in cigarettes and e-cigarettes may affect current menthol cigarette smokers, 37 African American menthol smokers participated in a pilot study in which they were asked to abstain (n = 18) or not abstain from menthol cigarettes (n = 19) for 8-weeks. All participants received menthol flavored e-cigarettes for 4 weeks and tobacco flavored e-cigarettes for 4 weeks in random order. Number of cigarettes smoked per day (estimated mean ratio [EMR] = 0.31; 95% CI: 0.13, 0.72) and exhaled CO concentrations (EMR = 0.61; 95% CI: 0.43, 0.88) were lower in the menthol cigarette abstainer group compared to the menthol cigarette non-abstainer group. Those in the menthol cigarette abstainer group reported higher scores on motivation to quit (p = 0.03) and perceived effectiveness of quitting skills (p = 0.02). There were no substantial effects seen in amount smoked or exhaled CO based on flavor of e-cigarettes provided. Higher e-cigarette use (based on reported puffs per day) was reported in the menthol cigarette abstainer (vs. non-abstainer) group (p < 0.01) and also during the 4-week period when provided with menthol (vs. tobacco) e-cigarettes (p < 0.01). These data suggest that the potential of e-cigarettes to reduce tobacco related harm may be enhanced if combined with a ban on menthol flavor in combustible cigarettes. Larger studies are needed to determine the effect of limiting menthol in e-cigarettes on smoking behavior among current menthol smokers.

Effect of menthol on nicotine reduction: Pooled results from two double-blind randomized controlled trials

BACKGROUND

Menthol upregulates nicotinic acetylcholine receptors and is associated with tobacco dependence. The effects of menthol when smoking cigarettes with varying low nicotine content up to 98 % (e.g., non-addicting) less than commercial cigarettes is not well understood. The U.S. Food and Drug Administration is considering two tobacco product standards in cigarettes including banning menthol and reducing nicotine content. These new standards have the potential to significantly reduce smoking initiation and maintenance by limiting the mechanistic effects of nicotine and menthol on the brain.

METHODS

We conducted two parallel randomized clinical trials of gradually reduced nicotine in cigarettes from 11.6 mg down to 0.2 mg nicotine/cigarette (very low nicotine content; VLNC) vs. usual nicotine content (11.6 mg; UNC) over an 18-week period in people who smoke cigarettes with low socioeconomic status (SES) and mental health conditions.

RESULTS

Compared to UNC, VLNC was associated with significant reductions in cotinine, cigarettes per day, expired carbon monoxide levels, nicotine dependence and symptomology. These associations did not differ between menthol and non-menthol cigarettes, except people who smoke menthol cigarettes had less of a cotinine reduction in the SES trial. The pooled odds ratio of being adherent with using only VLNC study cigarettes in the gradual nicotine reduction arm for people who smoke non-menthol vs. menthol cigarettes was 2.6 (95 % CI:1.0, 6.4; p-value: 0.04).

CONCLUSIONS

When nicotine is lowered to non-addicting levels, the results indicate an independent effect of menthol on the need to sustain nicotine intake in addicted people who smoke cigarettes.

Longitudinal associations between flavored tobacco use and tobacco product cessation in a national sample of adults

Use of flavored tobacco has been associated with lower likelihood of short-term abstinence from tobacco. It is unknown whether longer-term associations exist, particularly for a variety of products and specific flavor categories. This study used adult survey data from the Population Assessment of Tobacco and Health (PATH) Study (2013-2018). We tested associations of past 30-day tobacco product use at wave 2 using both a 2-category any flavor versus unflavored variable and 4-category specific flavor (menthol/mint, sweet, and both menthol/mint and sweet) versus unflavored variable with past 12-month cessation from the same product two years later at wave 4. Separate models were run for each product (combustible cigarettes, cigars, hookah, e-cigarettes, and smokeless), adjusting for wave 1 sociodemographic characteristics. For all five products, past 30-day use of any flavored (versus unflavored) product at wave 2 was associated with reduced likelihood of same-product cessation at wave 4. Most specific flavor categories were associated with reduced odds of same-product cessation across all products. Any flavor use was also associated with reduced likelihood of longer-term cessation (i.e., past 24-months at both waves 3 and 4) and cessation from all five tobacco products in several analyses. Exploratory moderation results indicated that the association between e-cigarette flavor use and lower likelihood of cessation was stronger for young adults (18-24) versus older adults (25+). Current use of flavored tobacco products is associated with lower likelihood of product cessation. Flavored tobacco products warrant consideration in regulatory policy to reduce the adverse public health impact of tobacco use.

Receipt of Tobacco Treatment and One-Year Smoking Cessation Rates Following Lung Cancer Screening in the Veterans Health Administration

BACKGROUND

Implementation of effective smoking cessation interventions in lung cancer screening has been identified as a high-priority research gap, but knowledge of current practices to guide process improvement is limited due to the slow uptake of screening and dearth of data to assess cessation-related practices and outcomes under real-world conditions.

OBJECTIVE

To evaluate cessation treatment receipt and 1-year post-screening cessation outcomes within the largest integrated healthcare system in the USA-the Veterans Health Administration (VHA). Design Observational study using administrative data from electronic medical records (EMR). Patients Currently smoking Veterans who received a first lung cancer screening test using low-dose CT (LDCT) between January 2014 and June 2018. Main Outcomes Tobacco treatment received within the window of 30 days before and 30 days after LDCT; 1-year quit rates based on EMR Smoking Health Factors data 6-18 months after LDCT. Key Results Of the 47,609 current smokers screened (95.3% male), 8702 (18.3%) received pharmacotherapy and/or behavioral treatment for smoking cessation; 531 (1.1%) received both. Of those receiving pharmacotherapy, only one in four received one of the most effective medications: varenicline (12.1%) or combination nicotine replacement therapy (14.3%). Overall, 5400 Veterans quit smoking-a rate of 11.3% (missing=smoking) or 13.5% (complete case analysis). Treatment receipt and cessation were associated with numerous sociodemographic, clinical, and screening-related factors.

CONCLUSIONS

One-year quit rates for Veterans receiving lung cancer screening in VHA are similar to those reported in LDCT clinical trials and cohort studies (i.e., 10-17%). Only 1% of Veterans received the recommended combination of pharmacotherapy and counseling, and the most effective pharmacotherapies were not the most commonly received ones. The value of screening within VHA could be improved by addressing these treatment gaps, as well as the observed disparities in treatment receipt or cessation by race, rurality, and psychiatric conditions.

Smoking Quit Rates Among Menthol vs Non-Menthol Smokers: Implications Regarding a US Ban on the Sale of Menthol Cigarettes

BACKGROUND

A ban on the sale of menthol cigarettes in the United States is currently under consideration. A justification is that menthol cigarettes are harder to quit, particularly for African American smokers who use menthols much more frequently than White smokers, but epidemiologic data are limited.

METHODS

In a cohort of 16,425 mostly low income African American and White current cigarette smokers enrolled during 2002-2009, we computed smoking quit and re-uptake rates at three follow ups conducted means of 4.6, 7.7 and 11 years after entry. Generalized estimation equations were used to compute odds ratios (OR) and 95% confidence intervals (CI) for quitting and resuming smoking for menthol vs non-menthol smokers adjusted for race, age, education, income, and smoking pack years.

RESULTS

Crude annual quit rates among current smokers were 4.3% for menthol and 4.5% for non-menthol smokers, with adjusted ORs of quitting for menthol vs non-menthol smokers of 1.01 (95% CI = 0.91-1.11) overall, 0.99 (95% CI = 0.87-1.12) among African American and 1.02 (95% CI = 0.88-1.20) among White smokers. Crude annual smoking re-uptake rates were somewhat higher among menthol (8.4%) than non-menthol smokers (7.1%), with an adjusted OR of 1.19 (95% CI = 0.97-1.47), but net quit rates remained similar (OR = 1.01 [95% CI = 0.90-1.13] overall; OR = 1.00 [95% CI = 0.86-1.15] among African American participants; and OR = 1.04 [95% CI = 0.87-1.24] among White participants).

CONCLUSIONS

This large-scale prospective survey revealed similar quit rates among menthol and non-menthol smokers. Results contribute to policy discussions, especially if, as a meta analysis suggests, lung cancer risk is higher for non-menthol smokers and a ban leads menthol smokers to switch to non-menthol cigarettes.

Effect on Tobacco Use and Subjective Measures of Including E-cigarettes in a Simulated Ban of Menthol in Combustible Cigarettes

INTRODUCTION

Bans of menthol characterizing flavor in tobacco products have been proposed, however there is limited data regarding the impact on current menthol cigarette smokers of including e-cigarettes in such bans.

METHODS

In this six-week pilot study, menthol smokers were randomized to receive all tobacco products from an experimental marketplace simulating either no menthol ban, a menthol ban for cigarettes but not e-cigarettes or a ban for both ("total menthol ban").

RESULTS

At the first experimental marketplace visit, all but one participant selected cigarettes with e-cigarettes selected by 38%, 69% and 40% of participants in the no ban, menthol cigarette ban and total menthol ban groups, respectively. Over the study period, the total menthol ban group smoked more than the menthol cigarette ban group (estimated mean ratio [EMR] in cigarettes per day = 1.38; 95% CI: 1.1, 1.75; p=0.006). Compared to the no ban condition, the menthol cigarette ban group smoked slightly fewer (EMR = 0.87; 95% CI: 0.68, 1.11) and the total menthol ban group smoked slightly more (EMR = 1.20; 95% CI: 1.00, 1.45) although neither difference reached statistical significance. In both menthol ban conditions, ratings were lower (vs. no ban) on several measures of craving and of cigarette effects and liking.

CONCLUSIONS

Menthol bans that include e-cigarettes may result in different patterns of tobacco use than if only combustible cigarettes are included, although e-cigarettes were not extensively used in any group. Larger studies are needed to determine which policies most likely provide the largest public health benefit.

IMPLICATIONS

Bans of menthol characterizing flavor have been proposed, however the effects on menthol cigarette smokers of including e-cigarettes in such bans are not clear. This study found that smokers randomized to a simulated ban on menthol in both cigarettes and e-cigarettes smoked more cigarettes per day over the 6-week study period than those randomized to a simulated ban on menthol in only cigarettes suggesting that smoking patterns among current menthol smokers differ depending on which products are included in a menthol ban. Larger studies are needed to determine policies most likely to provide the largest public health benefit.

Racial Disparities in Cigarette Smoking Behaviors and Differences Stratified by Metropolitan Area of Residence

Background: Black cigarette smokers experience a disproportionate burden of non-small cell lung cancer (NSCLC) compared to other racial and ethnic groups, despite starting to smoke later in life, smoking less frequently, and smoking fewer cigarettes per day compared with White smokers. Research has shown that these disparities in NSCLC are wider in rural areas. Objective: To examine differences in smoking behaviors between Black and White individuals living in non-metropolitan areas and metropolitan areas. Methods: Using harmonized data from the Tobacco Use Supplement to the Current Population Survey (TUS-CPS) years 2010–2011, 2014–2015, and 2018–2019, we compared smoking behaviors between Black and White current and former smokers by metropolitan status (i.e., whether an individual lives in a densely populated area or not) and by both metropolitan status and sex. Results: Smoking prevalence was higher among White participants living in non-metropolitan versus Black participants. Further, in non-metropolitan areas, Black individuals reported smoking fewer cigarettes per day, fewer years of smoking, and a later age of initiation compared to White individuals. Additionally, Black individuals, especially men, were more likely than White individuals to be current non-daily smokers. Conclusions: Our findings show that Black individuals living in non-metropolitan areas do not, in aggregate, have more cigarette smoking exposure relative to White individuals. Additional research is needed to further understand smoking-related exposures and other factors that may contribute to lung cancer disparities, especially in non-metropolitan areas.

Current state of unhealthy living characteristics in Black/African American and Latino populations: Tobacco use

Over the past six decades, the United States has significantly improved tobacco-related health outcomes through mass efforts in policies, research, and behavioral and clinical interventions. Disparities persist, however, among communities of color who continue to suffer disproportionate rates of cardiovascular disease and other tobacco-related morbidity and mortality. In this review, we synthesize and discuss the tobacco use lifecycle across the lifespan, with special attention paid to socioecological determinants of tobacco-use behavior among Blacks and Latinos. This review summarizes the permeability of tobacco use and tobacco-related determinants across multiple levels of influence, from the individual to the societal, and highlights gaps in the tobacco control and prevention landscape. Given its continued evolution and impact on socially disadvantaged communities, we conclude with recommendations for improving current tobacco research and treatment and prevention efforts.

"I think it's a good idea for the people that's young, the kids, but for someone like me it's a bad idea." - Interviews about a U.S. menthol cigarette ban with people who smoke menthol cigarettes

OBJECTIVE

The US Food and Drug Administration recently announced its intention to pursue a federal ban on menthol cigarettes. This qualitative study assessed reactions to a potential menthol cigarette ban among people who smoke menthol cigarettes.

METHODS

As part of a laboratory study examining menthol flavor regulations, we conducted follow-up interviews with participants who smoke menthol cigarettes (N = 35). We explored the following topics: (1) menthol cigarette risk perceptions; (2) knowledge, attitudes, and perceptions of menthol cigarette regulations; and (3) anticipated behavior if menthol cigarettes were banned. Interviews were audio-recorded, transcribed verbatim, double-coded, and analyzed using reflexive thematic analysis.

RESULTS

Many participants thought menthol cigarettes carried more health risks than non-menthol cigarettes. Some participants said regulators wanted to ban menthol cigarettes because they appeal to youth. Others thought a ban would be good for public health because fewer people, particularly youth, would smoke. Several voiced skepticism about banning only menthol cigarettes rather than all cigarettes. Most said they would use other products, including electronic cigarettes or non-menthol cigarettes, but many also thought a menthol ban could motivate them or others to quit smoking.

CONCLUSIONS

Banning menthol cigarettes could lead some people who smoke menthol cigarettes to switch to potentially less harmful products, like e-cigarettes, or quit smoking, which would likely benefit public health; however, others may simply transition to non-menthol cigarettes. As regulators move forward with banning menthol cigarettes, communication campaigns explaining the public health benefits, potentially focusing on the benefits for youth, should be part of the policy implementation plan.

Differences in switching away from cigarettes and JUUL use characteristics among adult menthol and nonmenthol smokers who purchased the JUUL System

OBJECTIVES

Studies have assessed switching away from cigarettes among adult smokers who use electronic nicotine delivery systems (ENDS), but there is little data assessing differences in likelihood of switching or ENDS use characteristics by menthol smoking.

METHODS

Adult (age ≥ 21) established smokers who purchased a JUUL Starter Kit (N = 15,036) completed baseline and 1-, 2-, 3-, 6-, 9- and 12-month assessments. Switching (no past-30-day cigarette smoking) and flavor use were assessed at each follow-up. Repeated-measure logistic regression models evaluated association of menthol smoking and switching across 1 year.

RESULTS

Across the 6 follow-ups, more menthol smokers primarily used Menthol/Mint-flavored JUULpods (53.8%) than nonmenthol smokers (22.9%). Only 6.4% of menthol smokers primarily used Tobacco flavors (vs. 25.9% of nonmenthol smokers). Across all follow-ups menthol smokers (41.2% of sample) were more likely to switch than nonmenthol smokers (42.6% vs. 38.8%: OR [95% CI] = 1.17 [1.11, 1.23]); this association remained significant after adjustment for sociodemographic, smoking and JUUL use covariates (aOR [95% CI] = 1.13 [1.05, 1.21]). Nonmenthol smokers, but not menthol smokers, were significantly more likely to switch when primarily using Menthol/Mint-flavored (vs. Tobacco-flavored) JUULpods (aOR [95% CI] = 1.14 [1.04, 1.25]). Differences in baseline smoking characteristics between menthol and nonmenthol smokers were small in magnitude.

CONCLUSIONS

Adult menthol (vs. nonmenthol) smokers using JUUL were more likely to switch. More than twice as many menthol (vs. nonmenthol) smokers primarily used Menthol/Mint-flavor JUULpods; few menthol smokers used tobacco flavors. Given these pronounced differences in flavor preferences, availability of ENDS in menthol flavors may be particularly important for menthol smokers, but may also benefit some nonmenthol smokers.

The Impact of Menthol Cigarette Flavor in the U.S.: Cigarette and ENDS Transitions by Sociodemographic Group

INTRODUCTION

A better understanding of how menthol cigarette flavoring and ENDS impact smoking initiation, cessation, and transitions between tobacco products could help elucidate the potential impact of a U.S. menthol ban on combustible tobacco products.

METHODS

A multistate transition model was applied to data on 23,232 adults from Waves 1-4 (2013-2017) of the Population Assessment of Tobacco and Health Study (analysis was conducted in 2020-2021). Transition rates among never, noncurrent, nonmenthol versus menthol cigarette, ENDS, and dual everyday/someday use were estimated, as were transition-specific hazard ratios for age, sex, race/ethnicity, education, and income.

RESULTS

Non-Hispanic Blacks who smoked menthol discontinued smoking at a much lower rate than those who smoked nonmenthol (hazard ratio=0.43, 95% CI=0.29, 0.64), but there was no statistically significant difference in the discontinuation rates among non-Hispanic Whites (hazard ratio=0.97, 95% CI=0.80, 1.16) or Hispanics (hazard ratio=0.81, 95% CI=0.56, 1.16). Non-Hispanic Whites who smoked menthol were more likely to become dual users than those who smoked nonmenthol (hazard ratio=1.43, 95% CI=1.14, 1.80). Young adults initiated menthol smoking at a higher rate than older adults (age 18-24 years versus ≥55 years: hazard ratio=2.45, 95% CI=1.44, 4.15) but not nonmenthol smoking (hazard ratio=1.02, 95% CI=0.62, 1.69). There were differences by sex in the impact of menthol flavor on smoking initiation and discontinuation but little difference by education or income.

CONCLUSIONS

Sociodemographic differences in product transitions should be accounted for when estimating the potential impact of a menthol ban.

Exclusive and dual menthol/non-menthol cigarette use with ENDS among adults, 2013-2019

This study examines patterns of use for menthol/non-menthol cigarettes and Electronic Nicotine Delivery Systems (ENDS) from 2013 to 2019 among U.S. adults. We calculated the weighted population prevalence of current exclusive and dual use for each product (i.e., menthol/non-menthol cigarettes and ENDS) stratified by age, sex, race/ethnicity, household income, and education in all surveys using data from three nationally representative surveys: the Population Assessment of Tobacco and Health (PATH) Study Waves 1–4 (W1-W4), 2013–2018; the National Health Interview Survey (NHIS) 2015; and the Tobacco Use Supplement to the Current Population Survey (TUS-CPS) 2014–2015 (T1) and 2018–2019 (T2). Exclusive non-menthol cigarette use (PATH: 9.0%W1, 9.4%W4; NHIS: 8.7%; TUS-CPS: 8.1%T1, 6.9%T2) and dual non-menthol cigarette/ENDS use (PATH: 2.4%W1, 1.5%W4; NHIS: 1.5%; TUS-CPS: 1.1%T1, 0.6%T2) were the most common single and dual tobacco use patterns, respectively, across all surveys. Both exclusive menthol cigarette use (3.9%T1-3.3%T2) and non-menthol cigarette use (8.1%T1-6.9%T2) declined in TUS-CPS from 2014/5–2018/9. Dual menthol cigarette/ENDS use also declined (PATH: 1.5%W1-1.1%W4; TUS-CPS: 0.5%T1-0.3%T2), as did dual non-menthol cigarette/ENDS use (PATH: 2.4%W1-1.5%W4; TUS-CPS 1.1%T1-0.6%T2). Across surveys, exclusive menthol cigarette use and dual menthol cigarette/ENDS use were more common among individuals aged 25–34 years old; non-Hispanic Blacks (NHBs); and low-income earners. Single and dual use patterns of menthol/non-menthol cigarettes and ENDS have declined over time. Nevertheless, certain vulnerable population groups, including NHBs and low-income earners, disproportionately use exclusive menthol cigarettes and dual menthol cigarette/ENDS, making menthol bans a potential policy target for reducing tobacco-related health disparities.

Racial/ethnic group comparisons of quit ratios and prevalences of cessation-related factors among adults who smoke with a quit attempt

BACKGROUND

Smoking-related disparities exist among racial/ethnic minoritized groups.

OBJECTIVE

We compared quit ratios and smoking cessation-related protective and risk factors by race/ethnicity to inform approaches to reduce disparities.

METHODS

Among adults who smoke with a quit attempt from Wave 4 (2016-2017) Population Assessment of Tobacco Use and Health Study, the following factors were examined by racial/ethnic group (American Indians/Alaska Native [AI/AN;n = 165], Black/African American [AA;n = 526], Asian [n = 38], Hispanic/Latino/Latina/Spanish [n = 475], or White [n = 1,960]), wherein each were nearly gender-balanced: cessation medications, counseling/self-help materials, home smoking ban, social support, e-cigarette use, sleep, and mental health.

RESULTS

Quit ratio was lower for AI/AN (adjusted odds ratio[aOR]:0.61) and Black/AA (aOR:0.49) and higher for Asian (aOR:1.90) and Hispanic/Latino/Latina/Spanish (aOR:1.30) than White adults. Medication use was low among all and lower among Black/AA (aOR:0.70) and Hispanic/Latino/Latina/Spanish (aOR:0.56) than White adults. Use of counseling/self-help materials were low among all and higher in AI/AN (aOR:1.85), Black/AA (aOR:1.87), and Hispanic/Latino/Latina/Spanish (aOR:1.49) than White adults. Presence of a smoking ban was lower among Black/AA (aOR:0.40) and higher in Hispanic/Latino/Latina/Spanish (aOR:1.59) than White adults. E-cigarette use was lower in Black/AA (aOR:0.53) and Hispanic/Latino/Latina/Spanish (aOR:0.43) than White adults. Sadness, anxiety, and sleep difficulties were higher in AI/AN (aORs:1.57, 1.50, 1.64) than White adults.

CONCLUSIONS

All racial/ethnic groups would benefit from policies and programs that increase cessation medications and counseling. Quit ratios were particularly low among Black/AA and AI/AN adults. Black/AA adults may benefit from efforts to increase smoking bans, while AI/AN adults may benefit from cessation approaches that simultaneously target sleep and mental health.

A longitudinal study of menthol cigarette use and smoking cessation among adult smokers in the US: Assessing the roles of racial disparities and E-cigarette use

Using nationally representative longitudinal data from Wave 1 to Wave 4 of the Population Assessment of Tobacco and Health Study in the United States, we examined whether the association between menthol cigarette use and smoking cessation was modified by race/ethnicity and e-cigarette use. Multivariable discrete-time survival models were fit to an unbalanced person-period data set (person n = 7423, risk period n = 18,897) for adult respondents (ages 25+) who were current established cigarette smokers at baseline. We found that adults who smoke menthol cigarettes had lower odds of smoking cessation, but the effect was modified by race/ethnicity as non-Hispanic (NH) Black menthol smokers had lower odds of quitting smoking than NH White or Hispanic menthol smokers. We also found that e-cigarette use was associated with higher odds of smoking cessation among both menthol and non-menthol smokers, but the association was stronger among menthol smokers. Our results suggest that a menthol smoking ban may have a favorable impact on smoking cessation for NH Black adults. In addition, our results also suggest that a menthol smoking ban may be more effective if menthol smokers have access to e-cigarettes as a way to quit cigarette use.

Classifying the comprehensiveness of flavoured tobacco sales restrictions: development and application of a tool to examine US state and local tobacco policies

OBJECTIVES

Comprehensive tobacco control policies with minimal exemptions can reduce tobacco use and sales. Many states and localities have adopted flavoured tobacco product (FTP) sales restrictions. This study describes the development and application of a schema to characterise the comprehensiveness of these FTP sales restrictions.

DESIGN

We coded state and local FTP sales restrictions enacted June 2007-March 2021 for retailer, tobacco product, and flavour inclusions and exemptions. Guided by FTP literature, legal resources and meetings with FTP policy experts, we developed a six-level classification scheme to characterise coded FTP policies from least to most comprehensive. We present descriptive statistics of FTP policy features and comprehensiveness.

RESULTS

As of 31 March 2021, 7 state-level and 327 local-level FTP sales restrictions were enacted in the USA. Most state-level policies (71.4%) were categorised in the second lowest comprehensiveness category; local policies most commonly fell within the lowest (48.9%) or highest (26.0%) comprehensiveness categories. Across jurisdictions, adult-only retailers were most frequently exempted from the FTP sales restrictions (state: n=1, 14.3%; local: n=184, 56.3%); and most jurisdictions included electronic cigarettes (e-cigarettes) as a banned product (state: n=6, 87.5%; local: n=327, 100%). While just over half of state (n=4, 57.1%) and local (n=169, 51.7%) sales restrictions included menthol e-cigarettes, most excluded menthol cigarettes and/or menthol smokeless tobacco.

CONCLUSIONS

Comprehensiveness of FTP sales restrictions in the USA varies widely. Current and future FTP policies would be strengthened by including all flavours and all tobacco products-particularly menthol cigarettes-and by avoiding exemptions for certain retailers, particularly adult-only retailers.

Smoking cessation intentions and attempts one year after the federally mandated smoke-free housing rule

The present study examines public housing residents' smoking cessation intentions, expectancies, and attempts one year after implementation of the Department of Housing and Urban Development's mandatory smoke-free rule in public housing. The sample includes 233 cigarette smokers, ages 18-80, who reside in the District of Columbia Housing Authority. Data collection occurred between March and August 2019. Descriptive statistics, chi-square, and Wilcoxon two-sample test analyses assessed smoking cessation intentions, expectancies, and attempts across resident demographics and characteristics. Findings showed 17.2% of residents reported not thinking about quitting, 39.1% reported thinking about quitting, and 48.6% reported thinking about quitting specifically because of the rule. Residents ages 60-80 were more likely to consider quitting because of the rule, compared to residents ages 18-59. Of those thinking of quitting, 58.6% were sure they could quit if they tried. Those thinking of quitting due to the rule (62.0%) were more likely to have made at least one quit attempt in the past 3 months than those i not attributinging thinking of quitting to the rule. Res Residents trying to quit reported an average of 2.7 attempts in the last 3 months;; most perceived evidence-based cessation supports as not helpful. A A majority reported thinking about quitting and attempting to quit but continuing to smoke, indicating a significant gap between intent to quit and successfully quitting. Results suggest that the rule positively influenced smoking behaviors. However, additional interventions are needed to assist public housing residents with successfully quitting smoking.

Smoking cessation strategies used by former menthol cigarette smokers after a menthol ban

INTRODUCTION

Menthol cigarettes were banned in Ontario, Canada on January 1st, 2017. We used concept mapping, a mixed-method approach, to describe how menthol cigarette smokers quit smoking after the Ontario menthol ban.

METHODS

Pre-ban daily and non-daily menthol cigarette smokers who reported smoking abstinence 24 months after the ban (n = 62; 53.2% women; mean age = 43.6, SD = 12.5) generated statements describing reasons and strategies for smoking cessation/reduction after the menthol ban. Participants sorted a final list of 57 statements into groups of similar content and rated statements on how true each statement was for them and multidimensional scaling analysis identified thematic clusters.

RESULTS

Six clusters were identified: Mental and Environment Changes, Direct Ban Impacts, Health Reasons, Cues to Action, Family and Friends, and Cessation Strategies. The highest rated statements (i.e., most true) suggested many participants were motivated to quit smoking before or after the ban and 30.7% of participants believed the menthol ban helped with smoking cessation. Some of the lowest rated statements included using nicotine replacement therapy products, medication (i.e., Champix), or other tobacco products suggesting these strategies were less common. Statement ratings suggested many smokers quit without using replacement products or medication, but modifying cognitions and avoiding smoking cues were common.

CONCLUSIONS

The menthol ban aided some menthol smokers to quit, while others reported the ban did not play a role in smoking cessation. These data suggest the menthol ban had direct and indirect effects on smoking reduction behavior. Campaigns supporting similar bans that target both types of effects will likely be most effective for smoking reduction.

Assessing the Health and Economic Impact of a Potential Menthol Cigarette Ban in New York City: a Modeling Study

Menthol in cigarettes increases nicotine dependence and decreases the chances of successful smoking cessation. In New York City (NYC), nearly half of current smokers usually smoke menthol cigarettes. Female and non-Latino Black individuals were more likely to smoke menthol-flavored cigarettes compared to males and other races and ethnicities. Although the US Food and Drug Administration recently announced that it will ban menthol cigarettes, it is unclear how the policy would affect population health and health disparities in NYC. To inform potential policymaking, we used a microsimulation model of cardiovascular disease (CVD) to project the long-term health and economic impact of a potential menthol ban in NYC. Our model projected that there could be 57,232 (95% CI: 51,967-62,497) myocardial infarction (MI) cases and 52,195 (95% CI: 47,446-56,945) stroke cases per 1 million adult smokers in NYC over a 20-year period without the menthol ban policy. With the menthol ban policy, 2,862 MI cases and 1,983 stroke cases per 1 million adults could be averted over a 20-year period. The model also projected that an average of $1,836 in healthcare costs per person, or $1.62 billion among all adult smokers, could be saved over a 20-year period due to the implementation of a menthol ban policy. Results from subgroup analyses showed that women, particularly Black women, would have more reductions in adverse CVD outcomes from the potential implementation of the menthol ban policy compared to males and other racial and ethnic subgroups, which implies that the policy could reduce sex and racial and ethnic CVD disparities. Findings from our study provide policymakers with evidence to support policies that limit access to menthol cigarettes and potentially address racial and ethnic disparities in smoking-related disease burden.

Social Disparities in Lung Cancer

Social disparities in lung cancer diagnosis, treatment, and survival have been studied using national databases, statewide registries, and institution-level data. Some disparities emerge consistently, such as lower adherence to treatment guidelines and worse survival by race and socioeconomic status, whereas other disparities are less well studied. A critical appraisal of current data is essential to increasing equity in lung cancer care.

Assessing the evidence on the differential impact of menthol versus non-menthol cigarette use on smoking cessation in the U.S. population: a systematic review and meta-analysis

Background

The potential impact of menthol versus non-menthol cigarette use on smoking behaviors is an intensely scrutinized topic in the public health arena. To date, several general literature reviews have been conducted, but findings and conclusions have been discordant. This systematic review followed PRISMA guidelines to examine the Key Question, “Does menthol cigarette use have a differential impact on smoking cessation compared with non-menthol cigarette use?”

Methods

Six databases—Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, Database of Abstracts of Reviews of Effects, MEDLINE, Embase and PsycInfo—were queried from inception to June 12, 2020. Articles comparing menthol versus non-menthol cigarette smokers in terms of at least one predefined smoking cessation outcome were included. Risk of bias was assessed using the Agency for Healthcare Research and Quality Evidence-Based Practice Center approach. A random-effects model utilizing the DerSimonian and Laird method to pool adjusted odds ratio was applied. Variations among pooled studies were assessed using Cochran’s Q statistic, and heterogeneity was quantified using the inconsistency index (I²).

Results

Forty-three demographically adjusted studies (22 rated “good”, 20 rated “fair”, and one study rated “poor” individual study quality) comparing menthol and non-menthol smokers were qualitatively synthesized across the following measures (study count; strength of evidence): duration of abstinence (2; low); quit attempts (15; insufficient); rate of abstinence/quitting (29; moderate); change in smoking quantity/frequency (5; insufficient); and, return to smoking/relapse (2; insufficient). Overall, the qualitative synthesis failed to show a consistent trend for an association between menthol cigarette use and smoking cessation across outcomes. Meta-analyses found no difference between menthol and non-menthol cigarette use and either quit attempts or abstinence.

Conclusions

Given the lack of consistency or statistical significance in the findings—combined with a “low” overall strength of evidence grade, based on deficiencies of indirectness and inconsistency—no consistent or significant associations between menthol cigarette use and smoking cessation were identified. Recommendations for future studies include increased focus on providing longitudinal, adjusted data collected from standardized outcome measures of cessation to better inform long-term smoking cessation and menthol cigarette use. Such improvements should also be further considered in more methodologically rigorous systematic reviews characterized by objectivity, comprehensiveness, and transparency with the ultimate objective of better informing public health and policy decision making.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13011-021-00397-4.

The impact of menthol cigarette use on quit attempts and abstinence among smokers with opioid use disorder

An exceedingly high proportion of persons with opioid use disorder (OUD) smoke cigarettes. Smokers with OUD face multiple barriers to smoking cessation. While menthol cigarette use has been associated with low cessation rates, research has not explored the impact of menthol cigarette use on tobacco use outcomes among smokers with OUD. Participants were current smokers, in methadone treatment for OUD, participating in randomized controlled trials of smoking cessation therapies. We examined the use of menthol cigarettes, and the association between menthol cigarette use and achieving 24-hour quit attempts and seven-day point prevalence abstinence. Of 268 participants, 237 (88.4%) reported menthol use. A similar proportion of menthol and non-menthol smokers achieved a 24-hour quit attempt (83.1% vs. 83.8%, p = 0.92). Though fewer menthol smokers (vs. non-menthol smokers) achieved abstinence (12.7% vs. 22.6%), this did not reach statistical significance (p = 0.14). In this sample of smokers with OUD, menthol smoking was nearly ubiquitous. Menthol smoking was not associated with differences in quit attempts, but was associated with differences in cessation that were not statistically significant. Menthol smoking may contribute to the challenges in achieving abstinence among smokers with OUD.

Differences in Cognitive Task Performance, Reinforcement Enhancement, and Nicotine Dependence Between Menthol and Nonmenthol Cigarette Smokers

INTRODUCTION

Menthol has been shown to target similar brain regions and neural receptors as nicotine, yet the association between menthol cigarette use and cognitive performance remains unknown.

AIMS AND METHODS

This study examined differences in cognitive task performance between menthol (MS) and nonmenthol (NMS) cigarette smokers after acute cigarette consumption. Sixty white and black and/or African American, nonabstinent, MS (n = 30) and NMS (n = 30) were assessed presmoking and postsmoking their preferred cigarette on four computerized tasks: Continuous Performance Task (CPT; alerting attention), N-Back Task (working memory), Finger Tapping Task (motor control), and Apple Picker Task (reinforcement enhancement). Self-reported nicotine dependence and objective smoking topography measures were also compared between groups.

RESULTS

Initial unadjusted analyses showed a significant effect of cigarette type × time on CPT speed (p = .042), where MS improved while NMS group worsened in CPT speed after smoking. After controlling for baseline cigarette craving and cigarette nicotine levels, the effect of cigarette type × time for all cognitive outcomes was statistically nonsignificant (ps > .05). However, there remained a significant effect of cigarette type, where MS versus NMS had poorer CPT (p = .046) and N-Back Task accuracy (p = .006) but faster N-Back speed (p = .039). There were no statistically significant differences between groups on reinforcement enhancement, nicotine dependence, or smoking behavior outcomes (ps > .05).

CONCLUSIONS

Contrary to our hypotheses, results did not find a significant effect of cigarette type on the change in cognitive performance after acute smoking in nonabstinent smokers. Further studies are needed to clarify the specific pharmacological effects of nicotine and menthol on cognitive functioning.

IMPLICATIONS

The current study is the first to compare the potential enhancement of cognitive task performance after acute cigarette smoking between satiated menthol and nonmenthol cigarette smokers. Study results suggest that acute menthol cigarette use may not enhance cognitive function above and beyond nonmenthol cigarettes to increase dependence among menthol smokers. However, the contribution of other psychological factors (eg, craving, mood) and cigarette characteristics (eg, nicotine content) may be involved in cognitive function enhancement to perpetuate dependence and smoking persistence for menthol smokers.

The Relationship Between Menthol Cigarette Use, Smoking Cessation, and Relapse: Findings From Waves 1 to 4 of the Population Assessment of Tobacco and Health Study

INTRODUCTION

Some, but not all, studies suggest that menthol cigarette smokers have more difficulty quitting than non-menthol cigarette smokers. Inconsistent findings may be a result of differences in smoker characteristics (eg, daily vs. non-daily smokers) across studies. This study examines the relationship between menthol cigarette use, cessation, and relapse in a longitudinal, nationally representative study of tobacco use in the United States.

AIMS AND METHODS

Data come from four waves of the Population Assessment of Tobacco and Health Study. Waves 1-4 were conducted approximately annually from September 2013 to January 2018. Generalized estimating equation models were used to prospectively examine the relationship between menthol cigarette use, cessation, and relapse in non-daily and daily adult (18+) smokers. Cessation was defined as smokers who had not used cigarettes within the past 30 days at their subsequent assessment. Relapse was defined as cessation followed by past 30-day smoking in the next assessment.

RESULTS

Among daily smokers (n = 13 710), 4.0% and 5.3% of menthol and non-menthol smokers quit after 1 year, respectively. In an adjusted model, menthol smokers were less likely to quit compared with non-menthol smokers (odds ratio [OR] = 0.76 [0.63, 0.91]). When the sample was stratified by race/ethnicity, African American (OR = 0.47 [0.24, 0.91]) and White (OR = 0.78 [0.63, 0.97]) daily menthol users were less likely to have quit. Among non-daily smokers (n = 3608), there were no significant differences in quit rates. Among daily and non-daily former smokers, there were also no differences in relapse rates between menthol and non-menthol smokers.

CONCLUSIONS

Menthol cigarette use is associated with lower odds of cessation.

IMPLICATIONS

Findings from this study suggest that menthol cigarette use is associated with lower odds of cessation, but not relapse. Removing menthol cigarettes from the market may improve cessation rates.

Australian Smokers' Sensory Experiences and Beliefs Associated with Menthol and Non-Menthol Cigarettes

Many current smokers incorrectly believe that menthol cigarettes are less harmful, likely due to the biological and sensory effects of menthol, which can lead smokers to have favourable sensory experiences. In this study, we measured the extent to which Australian smokers associate certain sensory experiences with smoking menthol and non-menthol cigarettes, and their beliefs about how damaging and enjoyable they find cigarettes with each of these sensory experiences. A sample of 999 Australian 18–69-year-old weekly smokers was recruited from a non-probability online panel; this study focuses on the 245 respondents who currently smoked menthol cigarettes at least once per week. Current menthol smokers were four to nine times more likely to experience menthol rather than non-menthol cigarettes as having favourable sensory experiences, including feeling smooth, being soothing on the throat, fresh-tasting and clean-feeling. Menthol smokers perceived cigarettes with these favourable sensations as less damaging and more enjoyable than cigarettes with the opposite more aversive sensory experience. Efforts to correct these misperceptions about risk will likely require messages that provide new information to help smokers understand that these sensations do not indicate a lower level of risk. Banning menthol in tobacco products—as has recently been done in some nations—would also be a timely and justified strategy for protecting consumers.

Effects on smoking behavior of switching menthol smokers to non-menthol cigarettes

INTRODUCTION

Bans of menthol characterizing flavor in cigarettes have been implemented in some localities and have been proposed more broadly. One proposed benefit of such a ban is to increase cessation rates among current menthol smokers. There is currently relatively limited data regarding how smoking behavior changes if menthol smokers switch to non-menthol cigarettes.

METHODS

African American menthol smokers interested in quitting smoking were randomized to either continue smoking menthol (n=60) or switch to non-menthol cigarettes (n=62) for one month prior to a cessation attempt. Cessation results were reported previously; this analysis reports the results from the pre-cessation visits at which amount smoked, exhaled carbon monoxide concentration (CO), urinary cotinine concentrations and subjective measures were assessed.

RESULTS

Over the four-week study period, those switching to non-menthol (vs. continuing to smoke menthol) cigarettes smoked fewer cigarettes per day (mean ratio: 0.86; 95% CI: 0.76, 0.98; p=0.02), reported lower withdrawal symptom severity (mean difference -1.29; 95% CI: -2.6 to -0.01; p=0.05) and higher perceived effectiveness of their skills for quitting smoking (mean difference 0.56; 95% CI: 0.02 to 1.10; p=0.05). No significant differences were found between groups in exhaled CO, urinary cotinine concentrations or most other subjective effects including support for a ban on menthol characterizing flavor in cigarettes.

CONCLUSIONS

These results suggest that were menthol cigarettes no longer available, those that switch to non-menthol cigarettes would not change their smoking behavior in a way that is likely to be more hazardous, with some indicators suggesting that there may be some benefit.

IMPLICATIONS

A ban on menthol characterizing flavor in cigarettes has been proposed as a potential means by which to increase smoking cessation rates among current menthol cigarette smokers. This study evaluated how African American menthol cigarette smokers adjusted their smoking behavior after switching to non-menthol cigarettes. Although the overall differences between groups were modest, they were in a direction consistent with decreased smoking suggesting that current smokers would not adjust their behavior in a way that is likely to be more hazardous, with some indicators suggesting that there may be some benefits.

The impact of menthol flavoring in combusted tobacco on alternative product purchasing: A pilot study using the Experimental Tobacco Marketplace

INTRODUCTION

Menthol cigarette smokers may switch to other combusted products like menthol little cigars and cigarillos (LCCs) or switch to non-combusted products like menthol vapes if menthol cigarettes are banned or otherwise restricted. This pilot study used a behavioral economics task to understand (a) menthol cigarette demand across a range of increasing prices in the context of available alternative products and (b) how the availability of menthol LCCs affected cigarette demand and alternative product substitution.

METHODS

Menthol smokers completed the Experimental Tobacco Marketplace task during two sessions. Cigarettes, LCCs, smokeless tobacco, vapes, and medicinal nicotine were available from an online store. The price of menthol cigarettes increased across trials while the prices of the alternative products remained constant. Menthol LCCs were available in one session and excluded in the other. Cross-price elasticity beta estimates identified significant product substitutes.

RESULTS

When menthol LCCs were available, increasing the price of menthol cigarettes led to substitution with non-menthol cigarettes (β = 0.65, 95%CI = 0.34, 0.96), menthol little cigars (β = 0.39, 95%CI = 0.08, 0.70), and menthol vapes (β = 0.26, 95%CI = 0.16, 0.35). When menthol LCCs were not available, increasing the price of menthol cigarettes led to substitution with non-menthol cigarettes (β = 0.59, 95% CI = 0.08, 1.11), non-menthol cigarillos (β = 0.62, 95%CI = 0.19, 1.04), and menthol vapes (β = 0.13, 95%CI = 0.08, 0.18).

CONCLUSIONS

As the price of menthol cigarettes increased, demand for menthol cigarettes decreased and demand for combusted and non-combusted products increased, indicating significant substitution for menthol cigarettes. Policies targeting menthol combusted tobacco could result in some menthol smokers switching to non-combusted products like vaping devices.

Tobacco perceptions and practices: User groups and demographic characteristics, Mississippi, USA

INTRODUCTION

Despite decreases in the overall US smoking rate, tobacco use remains more common in some areas and by some groups. Deeper understanding of group differences is needed in order to tailor public health campaigns to the interests, perceptions and experiences of targeted audiences. Although some differences have been identified across African American and Caucasian smokers in the United States, additional insight is needed regarding factors that differentiate these groups. This study examined tobacco-related perceptions and practices, with an emphasis on identifying differences across African American and Caucasian smokers. Toward this goal, we examined key demographic variables of race and age, and tobacco use characteristics.

METHODS

The sample consisted of 284 people from the Jackson, Mississippi area who participated in focus groups and completed surveys addressing a variety of tobacco-related topics, including knowledge and perceptions of products as well as use and health information seeking behavior. The selection criteria and recruitment approach ensured a balance across race (black, white), age (18-34, >35 years), sex, and cigarette smoking status (current, former, never). Statistical analyses were performed using SAS (v.9.4).

RESULTS

Differences were observed across demographic subgroups regarding type and pattern of tobacco products used (e.g. mentholated, markers of nicotine dependence, hookah). Differences in preferred sources of health information based on age as well as perceptions of risk as a function of age, smoking status and race were also noted. Exposure to secondhand smoke and perceptions of its risks, quitting efforts and cessation methods differed by race.

CONCLUSIONS

Study findings suggest key differences across important subgroups. Knowledge of such differences has the potential to improve strategic public health messaging, allowing health campaigns to more effectively prevent tobacco product uptake as well as promote interest in quitting tobacco.

Assessment of Menthol and Nonmenthol Cigarette Consumption in the US, 2000 to 2018

This cross-sectional study examines trends in menthol cigarette use compared with nonmenthol cigarette use in the US.

Effects on time to lapse of switching menthol smokers to non-menthol cigarettes prior to a cessation attempt: a pilot study

INTRODUCTION

Menthol smokers (particularly African-Americans) have lower cessation success rates than non-menthol smokers. With bans being considered on characterising menthol flavour in cigarettes, data are needed regarding how switching to non-menthol cigarettes impacts cessation measures.

METHODS

In this randomised pilot study, African-American menthol cigarette smokers interested in quitting smoking either continued smoking menthol cigarettes (n=60) or switched to non-menthol cigarettes (n=62) for a 1-month period prior to a cessation attempt. The primary endpoint was time to smoking lapse (ie, time from quitting until any smoking). Additional endpoints included time to smoking relapse (ie, number of days from quitting until the first of seven consecutive smoking days) and difference between groups in subjective measures.

RESULTS

After attempting to quit, the non-menthol cigarette group had indications of delayed time to lapse (HR 0.82; 95% CI 0.55 to 1.22; p=0.33) and time to relapse (HR 0.67; 95% CI 0.42 to 1.06; p=0.09), although these were not statistically significant. Post hoc analyses suggest that observed differences were largely due to a smaller proportion of participants in the non-menthol group relapsing within the first day of quitting (21% vs 40%; p=0.05). Values of other measures assessed postcessation were largely similar between groups.

CONCLUSIONS

These data suggest that among African-American smokers, a menthol cigarette ban would not undermine short-term cessation measures and may result in some benefits. Future research is needed to assess longer term cessation rates and to identify interventions to maximise cessation success in the event of a menthol ban.

TRIAL REGISTRATION NUMBER

NCT02342327.

Correlates of youth vaping flavor preferences

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ENDS were the tobacco products most likely to be tried first.

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Fruit was the favorite flavor, followed by menthol/mint/wintergreen.

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Preference for flavor varied by age, sex and racial/ethnic background.

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Those who preferred fruit flavor were twice as likely to have tried ENDS first.

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Those who preferred menthol/mint/wintergreen were less likely to have tried ENDS first.

Among youth who use electronic nicotine delivery systems (ENDS), e-cigarettes are often the first tobacco product tried. Flavor is a common reason for experimentation with e-cigarettes. This study assessed flavor preferences and the choice of ENDS as an initial product among youth by selected demographic characteristics. The analysis sample included 1549 participants who had ever tried ENDS, drawn from a national online survey of youth aged 13–18 in 2017. Fruit was the most common favorite flavor among ENDS users, followed by menthol/mint/wintergreen. Preference for flavor varied by age, sex and racial/ethnic background. ENDS were the tobacco products most likely to be tried first, particularly among participants under age 17. Those who preferred fruit flavor were twice as likely to have tried ENDS first, compared to those with other flavor preferences, while those who preferred menthol/mint/wintergreen flavor were half as likely to have tried ENDS first. Our findings support an association between flavor and ENDS use. Our research supports previous findings indicating that: 1) flavor is one of the primary reasons for experimentation with ENDS among youth; 2) fruit flavor is strongly associated with use of ENDS as the first tobacco product; and 3) preference of fruit flavor varies by age, sex and racial/ethnic background. These findings have relevance for developing targeted messages for specific youth audiences and implications for tobacco regulatory policies. In addition to January 2020 federal regulations, the authors recommend tighter restrictions, specifically that the marketing and sale of all e-cigarette flavors other than tobacco be eliminated.