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Yang Y, Lindblom EN, Ward KD, Salloum RG. Would banning menthol cigarettes, flavored cigars, and flavored e-cigarettes prompt users to seek illicit channels for obtaining them in the United States? Prev Med 2024; 183:107954. [PMID: 38621422 PMCID: PMC11088487 DOI: 10.1016/j.ypmed.2024.107954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND Banning flavors in tobacco and nicotine products may reduce youth initiation and prompt quit attempts but such bans may lead to illicit markets. We examined how likely current users would be to seek flavored products from illicit channels under various ban scenarios. METHODS Cross-sectional surveys of 2552 current users of menthol cigarettes or flavored cigars and 2347 users of flavored e-cigarettes were conducted between 2021 and 2022 in the United States. For each ban scenario, respondents reported if they would have intentions to seek the banned flavored products from any illicit channels and identified the specific illicit channel they would consider. Logistic regressions were used to estimate how the likelihood of having intentions to seek illicit channels was associated with demographics, ban scenarios, and status of tobacco use. RESULTS Under various ban scenarios, 24-30% of people who smoked said they would seek illicit channels to obtain the banned products compared with 21-41% of dual users and 35-39% of users of flavored e-cigarettes. Online retailers were favored by people who smoked while users of flavored e-cigarettes favored local retailers. Heavy users were more likely to say they would try illicit channels. Under bans restricting more types of flavored tobacco products, users would be less likely to try illegal channels. CONCLUSIONS A significant proportion of users of flavored tobacco and nicotine products would not reject using illicit banned products. Tailored programs are needed to apply to the groups with a higher risk of seeking illicit channels for banned products.
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Affiliation(s)
- Yong Yang
- School of Public Health, University of Memphis, Memphis, TN 38152, United States of America.
| | - Eric N Lindblom
- O'Neill Institute for National & Global Health Law, Georgetown University Law Center, Washington, DC 20001, United States of America
| | - Kenneth D Ward
- College of Population Health, University of New Mexico, Albuquerque, NM 87131, United States of America
| | - Ramzi G Salloum
- Department of Health Outcomes and Policy, University of Florida, Gainesville, FL 32608, United States of America
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2
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Coughlin LN, Jennings CJ, Hellman L, Florimbio AR, Jannausch M, Bonar EE. Development and Pilot Testing of an Experimental Cannabis Marketplace: Toward Evaluating the Impact of Cannabis Policy on Consumer Choices. Cannabis Cannabinoid Res 2024; 9:e870-e877. [PMID: 37347989 DOI: 10.1089/can.2022.0273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2023] Open
Abstract
Introduction: The legal landscape of recreational cannabis production and consumption is rapidly expanding, driving a need to inform empirically supported cannabis regulatory policy. A behavioral economic framework integrating economic constructs (e.g., price, substitutability) with psychology and decision-making sciences, has previously been applied to tobacco regulatory sciences through the use of experimental marketplaces. However, experimental marketplaces have not yet been applied to understand cannabis choice behaviors or study ways to minimize risks from use. Herein, we describe the development and initial feasibility testing of an Experimental Cannabis Marketplace (ECM). The ECM can serve as an experimental platform relevant to evaluating the impact of regulatory policies on cannabis choices and use behavior. Methods: The ECM was designed to resemble an online cannabis dispensary. Adults aged 21 and older with past month cannabis use and past month purchase from a recreational dispensary were recruited online. To test the feasibility and acceptability of the ECM, 62 people completed the ECM shopping task and provided feedback on the ECM prototype. Participants also reported about their typical purchases from real-world dispensaries. Results: Nearly all participants rated the ECM as very (80.65%) or somewhat (16.13%) easy to navigate, and rated task instructions as at least mostly clear (100%). The majority (75.81%) said cannabis products available in the ECM were mostly the same or exactly the same as at their typical dispensary. Participant purchase choices in actual dispensary purchases closely matched ECM purchases, with 88% of product choices in typical real-world cannabis dispensaries matching the ECM products purchased. Discussion: Initial testing of the ECM indicates it is an acceptable and feasible tool for understanding cannabis purchasing and choice behavior. These preliminary findings suggest that the ECM mimics cannabis dispensary settings with people making similar choices to those made in the real world.
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Affiliation(s)
- Lara N Coughlin
- Addiction Center, Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, USA
- Injury Prevention Center, University of Michigan, Ann Arbor, Michigan, USA
| | - Claudia J Jennings
- Addiction Center, Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, USA
| | - Lauren Hellman
- Addiction Center, Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, USA
| | - Autumn Rae Florimbio
- Addiction Center, Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, USA
| | - Mary Jannausch
- Addiction Center, Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, USA
| | - Erin E Bonar
- Addiction Center, Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, USA
- Injury Prevention Center, University of Michigan, Ann Arbor, Michigan, USA
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Bremmer MP, Campbell AM, Xia K, Tarran R, Girdler SS, Hendershot CS. Effects of Nicotine Content and Preferred Flavor on Subjective Responses to E-cigarettes: A Randomized, Placebo-controlled Laboratory Study. Nicotine Tob Res 2024; 26:307-315. [PMID: 37539752 DOI: 10.1093/ntr/ntad143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 07/18/2023] [Accepted: 08/02/2023] [Indexed: 08/05/2023]
Abstract
INTRODUCTION Evidence suggests that e-liquid flavor and nicotine concentration are important factors in the initiation and maintenance of e-cigarette use (vaping). Flavors may increase the initiation and maintenance of vaping, and nicotine content is a factor in e-cigarette dependence and the efficacy of e-cigarettes for cigarette smoking cessation. Few human laboratory studies have assessed the joint and interactive effects of flavor and nicotine on subjective responses to e-cigarettes. METHODS Regular e-cigarette users (N = 89) completed a multi-session study involving a paced vaping procedure with e-liquid cartridges containing their preferred flavor (berry, menthol, or tobacco) or no flavor, with or without nicotine (18 mg). Subjective effects of vaping (satisfaction, reward, aversion, airway sensations, and craving relief) were assessed. RESULTS Nicotine significantly increased psychological reward and craving relief, whereas flavor significantly increased vaping satisfaction and taste. Nicotine dependence severity moderated the effect of nicotine on reward, such that those with the greatest dependence severity reported the greatest reward. CONCLUSIONS These findings support differential and noninteractive effects of e-liquid nicotine content and flavor on reinforcing effects of e-cigarettes. IMPLICATIONS E-liquid flavor and nicotine content have independent, non-interactive effects on subjective responses to vaping under controlled laboratory conditions. Among regular e-cigarette users, vaping a preferred flavor increased taste and satisfaction, but did not interact with nicotine to alter reward or craving. Further research on the ways in which these subjective effects may motivate vaping behavior among different populations of e-cigarette users would be useful to inform regulatory policy of ENDS products.
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Affiliation(s)
- Michael P Bremmer
- Department of Psychology & Neuroscience, Chapel Hill, NC, USA
- Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Alana M Campbell
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kai Xia
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Robert Tarran
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, NC, USA
| | - Susan S Girdler
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Christian S Hendershot
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Weng X, Song CY, Liu K, Wu YS, Lee JJ, Guo N, Wang MP. Perceptions of and responses of young adults who use e-cigarettes to flavour bans in China: a qualitative study. Tob Control 2024:tc-2023-058312. [PMID: 38267214 DOI: 10.1136/tc-2023-058312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 01/13/2024] [Indexed: 01/26/2024]
Abstract
BACKGROUND China has banned all flavoured e-cigarettes to reduce e-cigarette use among young people, but little is known about the views and reactions of people who use e-cigarettes. This study explored the perceptions of, and responses by, young adults who use e-cigarettes to the flavour ban. METHODS Semistructured interviews were conducted with 25 Chinese young adults aged 18-25 years who had used e-cigarettes daily in the past 3 months. Thematic analysis was used to analyse the interview data. FINDINGS Four themes were identified from the data: (1) understanding of the public health benefits, (2) resistance to and misperceptions of the flavour ban, (3) circumvention of the flavour ban and (4) acceptance of the flavour ban. Some participants expressed support for the ban due to perceived public health benefits, while others who resisted the ban emphasised their right to choose preferred flavours and questioned the rationale behind the policy. Participants responded to the flavour ban by utilising a variety of adaptive strategies, including purchasing flavoured e-cigarettes through illegal channels or exploring alternative ways to obtain flavours. Those who complied with the ban responded with different strategies, including switching back to combustible cigarettes, using tobacco-flavoured e-cigarettes, or quitting vaping. CONCLUSIONS The findings suggest the need for comprehensive regulatory measures, including stringent enforcement measures, transparent health communication and vigilant monitoring of e-cigarette manufacturers' tactics, to reduce e-cigarette use among young adults.
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Affiliation(s)
- Xue Weng
- Institute of Advanced Studies in Humanities and Social Sciences, Beijing Normal University, Zhuhai, China
| | - Chu Yu Song
- School of Social Development and Public Policy, Beijing Normal University, Beijing, China
| | - Kefeng Liu
- Department of Pulmonary and Critical Care Medicine, Guangdong Provincial Hospital of Traditional Chinese Medicine, Zhuhai, Guangdong, China
| | - Yongda Socrates Wu
- LKS Faculty of Medicine, School of Nursing, The University of Hong Kong, Hong Kong, China
| | - Jung Jae Lee
- LKS Faculty of Medicine, School of Nursing, The University of Hong Kong, Hong Kong, China
| | - Ningyuan Guo
- School of Nursing, Shanghai Jiao Tong University, Shanghai, China
| | - Man Ping Wang
- LKS Faculty of Medicine, School of Nursing, The University of Hong Kong, Hong Kong, China
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Freitas-Lemos R, Tegge AN, Tomlinson DC, Yeh YH, Stein JS, Michael Cummings K, Fong GT, Shields PG, Hatsukami DK, Bickel WK. Illegal product purchasing in the experimental tobacco marketplace: Effects of menthol cigarette and cigarette ventilation ban. Drug Alcohol Depend 2023; 253:111015. [PMID: 37951005 PMCID: PMC10885639 DOI: 10.1016/j.drugalcdep.2023.111015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 10/02/2023] [Accepted: 10/23/2023] [Indexed: 11/13/2023]
Abstract
BACKGROUND Tobacco regulations may increase demand for illegal cigarettes. We use the Experimental Tobacco Marketplace to estimate the impact of banning menthol cigarettes (Experiment 1) and decreasing allowable cigarette filter ventilation levels (Experiment 2). METHODS Crowdsourced participants were randomized into one of four groups (2×2 factorial design). Experiment 1 included menthol availability (yes/no) by purchasing option (legal only vs illegal available). Experiment 2 included filter-vented cigarettes availability (yes/no) by purchasing option (legal only vs illegal available). Participants were given an individualized budget to purchase tobacco. Percent budget spent was the outcome measure. RESULTS Experiment 1, with a legal marketplace only, non-menthol cigarette purchasing was lower (p=0.010) and electronic-cigarette purchasing was higher (p=0.016), when cigarettes were banned compared to when they were available. With an illegal marketplace, switching to legal non-menthol cigarettes was less likely (p<0.001) and purchasing illegal menthol cigarettes was higher (p<0.001), when cigarettes were banned compared to when they were available. Experiment 2, with a legal marketplace only, cigarette purchasing was lower (p=0.010), when the participant's filtered vented cigarettes were banned compared to when they were available. With an illegal marketplace, purchasing the legal low-ventilated cigarette option was lower (p<0.001) and significant differences in illegal filter-vented cigarette purchasing were not observed, when their filter-vented cigarettes were banned compared to when they were available legally. CONCLUSIONS Without an illegal option, both restrictions decreased cigarette purchasing, but the menthol ban increased e-cigarette purchasing. With an illegal option, a menthol ban increased illegal cigarette purchasing, but decreasing filter ventilation did not.
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Affiliation(s)
| | - Allison N Tegge
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA; Department of Statistics, Virginia Tech, Blacksburg, VA, USA
| | - Devin C Tomlinson
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA; Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA, USA
| | - Yu-Hua Yeh
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA
| | - Jeffrey S Stein
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA
| | - K Michael Cummings
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Geoffrey T Fong
- Department of Psychology and School of Public Health Sciences, University of Waterloo, Waterloo, Ontario, Canada; Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Peter G Shields
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, Columbus, OH, USA
| | - Dorothy K Hatsukami
- Masonic Cancer Center and Department of Psychiatry and Behavioral Sciences, University of Minnesota, Minneapolis, MN, USA
| | - Warren K Bickel
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA.
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Yan D, Wang Z, Laestadius L, Mosalpuria K, Wilson FA, Yan A, Lv X, Zhang X, Bhuyan SS, Wang Y. A systematic review for the impacts of global approaches to regulating electronic nicotine products. J Glob Health 2023; 13:04076. [PMID: 37622721 PMCID: PMC10451104 DOI: 10.7189/jogh.13.04076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023] Open
Abstract
Background The rapid increase in electronic nicotine product (ENP) use among young people has been a global public health challenge, given the potential harm of ENPs and nicotine dependence. Many countries have recently introduced legislations to regulate ENPs, but the impacts of these policies are poorly understood. This systematic review aims to critically synthesise empirical studies on the effects of global regulations regarding ENPs on the prevalence of use, health outcomes and their determinants, using the 4A marketing mix framework (acceptability, affordability, accessibility and awareness). Methods Following the PRISMA guideline, we searched PubMed, Embase, Scopus, Web of Science, Academic Search Complete, Business Source Complete, and APA PsycINFO databases from inception until June 14, 2022 and performed citation searches on the included studies. Reviewed literature was restricted to peer-reviewed, English-language articles. We included all pre-post and quasi-experimental studies that evaluated the impacts of e-cigarette policies on the prevalence of ENP use and other health outcomes. A modified Joanna Briggs Institute (JBI) Critical Appraisal checklist for quasi-experimental studies was used for quality assessment. Due to heterogeneity of the included studies, we conducted a narrative synthesis of evidence. Results Of 3991 unduplicated records screened, 48 (1.2%) met the inclusion criteria, most were from high-income countries in North America and Europe and 26 studies measured self-reported ENPs use. Flavour restrictions significantly decreased youth ENP use and taxation reduced adult use; mixed results were found for the impacts of age restrictions. Indoor vaping restrictions and the European Tobacco Products Directive (TPD) did not seem to reduce ENP use based on existing studies. Changes in determinants such as sales and perceptions corroborated our conclusions. Few studies assessed the impacts of other regulations such as advertising restrictions and retail licensing requirements. Conclusions Flavour restrictions and taxes have the strongest evidence to support effective control of ENPs, while others need powerful enforcement and meaningful penalties to ensure their effectiveness. Future research should focus on under-examined policies and differential impacts across sociodemographic characteristics and countries. Registration PROSPERO CRD42022337361.
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Affiliation(s)
- Duo Yan
- School of Public Health, Peking University, Beijing, China
- China Center for Health Development Studies, Peking University, Beijing, China
| | - Zicheng Wang
- China Center for Health Development Studies, Peking University, Beijing, China
| | - Linnea Laestadius
- Joseph J. Zilber College of Public Health, University of Wisconsin – Milwaukee, Milwaukee, Wisconsin USA
| | - Kavita Mosalpuria
- Matheson Center for Health Care Studies, University of Utah, Salt Lake City, Utah, USA
- Department of Population Health Sciences, University of Utah, Salt Lake City, Utah, USA
| | - Fernando A Wilson
- Matheson Center for Health Care Studies, University of Utah, Salt Lake City, Utah, USA
- Department of Population Health Sciences, University of Utah, Salt Lake City, Utah, USA
- Department of Economics, University of Utah, Salt Lake City, Utah, USA
| | - Alice Yan
- Department of Research Patient Care Service, Stanford Health Care, Palo Alto, California, USA
| | - Xiaoyang Lv
- School of Public Health, Peking University, Beijing, China
- China Center for Health Development Studies, Peking University, Beijing, China
| | - Xiaotian Zhang
- China Center for Health Development Studies, Peking University, Beijing, China
| | - Soumitra S Bhuyan
- Edward J. Bloustein School of Planning and Public Policy, Rutgers University, New Brunswick, New Jersey, USA
- School of Public and International Affairs, Princeton University, Princeton, New Jersey, USA
| | - Yang Wang
- China Center for Health Development Studies, Peking University, Beijing, China
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Dolan SB, Bradley MK, Johnson MW. E-cigarette Price Impacts legal and Black-Market Cigarette Purchasing Under a Hypothetical Reduced-Nicotine Cigarette Standard. Nicotine Tob Res 2023; 25:1556-1564. [PMID: 37195268 PMCID: PMC10439485 DOI: 10.1093/ntr/ntad067] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 01/29/2023] [Accepted: 05/14/2023] [Indexed: 05/18/2023]
Abstract
INTRODUCTION The Tobacco Control Act gives the U.S. Food and Drug Administration authority to establish a reduced-nicotine content standard in combusted cigarettes. This future potential regulation may pose a significant public health benefit; however, black markets may arise to meet demand for normal-nicotine content cigarettes among smokers unwilling to transition to or use an alternative product. AIMS AND METHODS We determined the behavioral-economic substitutability of illicit normal-nicotine content cigarettes and e-cigarettes for reduced-nicotine content cigarettes in a hypothetical reduced-nicotine regulatory market. Adult cigarette smokers were recruited online to complete hypothetical cigarette purchasing tasks for usual-brand cigarettes, reduced-nicotine content cigarettes, and illicit normal-nicotine content cigarettes, as well as a cross-commodity task in which reduced-nicotine content cigarettes were available across multiple prices and illicit cigarettes were concurrently available for $12/pack. Participants completed two three-item cross-commodity purchasing tasks in which e-cigarettes were available for $4/pod or $12/pod alongside reduced-nicotine content cigarettes and illicit cigarettes. RESULTS Usual-brand cigarette purchasing was greater than illicit normal-nicotine content cigarettes and less than reduced-nicotine content cigarettes. In the cross-commodity purchasing tasks, illicit cigarettes and e-cigarettes both served as economic substitutes for reduced-nicotine content cigarettes; however, when e-cigarettes were available for $4/pod, they were purchased at greater levels than illicit cigarettes and resulted in greater reductions in reduced-nicotine content cigarettes purchasing than when available for $12/pod. CONCLUSIONS These data suggest that some smokers are willing to engage in illicit cigarette purchasing in a reduced-nicotine regulatory environment, but e-cigarette availability at lower prices may reduce black-market engagement and shift behavior away from combusted cigarette use. IMPLICATIONS E-cigarettes available at low, but not high, prices were stronger substitutes for legal, reduced-nicotine content cigarettes than illegal, normal-nicotine content cigarettes in a hypothetical reduced-nicotine tobacco market. Our findings suggest the availability of relatively inexpensive e-cigarettes may reduce illicit cigarette purchasing and combusted cigarette use under a reduced-nicotine cigarette standard.
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Affiliation(s)
- Sean B Dolan
- The Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Melissa K Bradley
- The Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Matthew W Johnson
- The Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Freitas-Lemos R, Tegge AN, Athamneh LN, Yeh YH, Craft WH, Stein JS, Smith TT, Stepanov I, Rees VW, Cummings KM, O'Connor RJ, Shields PG, Hatsukami DK, Bickel WK. Is perception reality? Associations among "light" cigarettes and number of cigarettes smoked per day. Drug Alcohol Depend 2023; 244:109709. [PMID: 36642000 PMCID: PMC10081565 DOI: 10.1016/j.drugalcdep.2022.109709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 11/10/2022] [Accepted: 11/10/2022] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Cigarette filter ventilation and light descriptors are associated with lowered perceptions of risk and smoking more cigarettes per day (CPD). This study examined the relationship between usual cigarette ventilation, perception, and CPD. METHODS A crowdsourced sample (N = 995) of individuals who smoke higher-ventilated (=>20% ventilation) or lower-ventilated (=<10% ventilation) cigarettes identified their usual cigarette as "light" or "full flavor", and reported their average CPD. RESULTS We found: 1) no association between ventilation status and perception of light versus full flavor (AUC=0.58), with the inaccurate perception being more prevalent in younger individuals (p = 0.041) and those who smoke L&M (73%, p < 0.001) and Camel (61%, p = 0.006) brands; and 2) perception, but not ventilation of usual cigarette, was significantly associated with CPD (p = 0.006), with individuals who perceived their cigarettes as light reporting an average of 13% more cigarettes per day (2.6 CPD), compared to those who perceived their cigarette as full flavor. CONCLUSIONS Perceptions of light versus full-flavor, but not ventilation status, predicted CPD. These findings may inform anti-smoking health communication strategies and smoking cessation interventions. IMPLICATIONS Tobacco control policies should eradicate the perception of cigarettes as light or full-flavored. Future research investigating the associations between cigarette filter ventilation and smoking behavior should consider the confounding effects that may lie in an individual's perceptions of their cigarettes.
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Affiliation(s)
| | - Allison N Tegge
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA; Department of Statistics, Virginia Tech, Blacksburg, VA, USA
| | - Liqa N Athamneh
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA
| | - Yu-Hua Yeh
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA
| | - William H Craft
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA
| | - Jeffrey S Stein
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA
| | - Tracy T Smith
- Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Irina Stepanov
- Division of Environmental Health Sciences, University of Minnesota Twin Cities, Minneapolis, MN, USA
| | - Vaughan W Rees
- Department of Social and Behavioral Sciences, Harvard University T H Chan School of Public Health, Boston, MA, USA
| | - K Michael Cummings
- Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Richard J O'Connor
- Department of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Peter G Shields
- James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Dorothy K Hatsukami
- Department of Psychiatry and Behavioral Sciences, University of Minnesota Twin Cities, Minneapolis, MN, USA
| | - Warren K Bickel
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA.
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Cadham CJ, Liber AC, Sánchez-Romero LM, Issabakhsh M, Warner KE, Meza R, Levy DT. The actual and anticipated effects of restrictions on flavoured electronic nicotine delivery systems: a scoping review. BMC Public Health 2022; 22:2128. [PMCID: PMC9675183 DOI: 10.1186/s12889-022-14440-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/25/2022] [Indexed: 11/21/2022] Open
Abstract
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. Data extraction Restriction details, whether implemented or hypothetical, whether additional products were restricted, jurisdictional level, study locations, and outcomes classified by sales, behaviour, and compliance. Data synthesis We included 30 studies. Of those, 26 were conducted exclusively in the US, two in India, and two surveyed respondents in multiple countries, including the US. Twenty-one evaluated implemented restrictions, while nine considered hypothetical restrictions. Five studies evaluated product sales, 17 evaluated behaviour, and 10 evaluated compliance, with two studies reporting multiple outcomes. Two studies reported an increase and one a reduction in cigarette sales following restrictions, while three reported reductions in ENDS sales. Behavioural studies presented a mixed view of the impacts of regulations on ENDS and cigarette use. However, the use of disparate outcomes limits the comparability of studies. Studies of hypothetical restrictions suggest decreased ENDS use, increased cigarette use, and increased use of illicit markets. Studies of compliance with flavoured product restrictions that included ENDS found that 6–39% of stores sold restricted flavoured products post-restrictions. Online stores remain a potential source of restricted products. Conclusion Our findings highlight the need for additional research on the impacts of ENDS restrictions. Research should further evaluate the impact of restrictions on youth and adult use of nicotine and tobacco products in addition to the effects of restrictions in countries beyond the US to enable a robust consideration of the harm-benefit trade-off of restrictions. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-022-14440-x.
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Affiliation(s)
- Christopher J. Cadham
- grid.214458.e0000000086837370Department of Health Management and Policy, University of Michigan, School of Public Health, 1415 Washington Heights, Ann Arbor, MI USA
| | - Alex C. Liber
- grid.213910.80000 0001 1955 1644Cancer Prevention and Control Program, Georgetown University-Lombardi Comprehensive Cancer Center, 3300 Whitehaven St, Washington, DC USA
| | - Luz María Sánchez-Romero
- grid.213910.80000 0001 1955 1644Cancer Prevention and Control Program, Georgetown University-Lombardi Comprehensive Cancer Center, 3300 Whitehaven St, Washington, DC USA
| | - Mona Issabakhsh
- grid.213910.80000 0001 1955 1644Cancer Prevention and Control Program, Georgetown University-Lombardi Comprehensive Cancer Center, 3300 Whitehaven St, Washington, DC USA
| | - Kenneth E. Warner
- grid.214458.e0000000086837370Department of Health Management and Policy, University of Michigan, School of Public Health, 1415 Washington Heights, Ann Arbor, MI USA
| | - Rafael Meza
- grid.214458.e0000000086837370Department of Epidemiology, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2013 USA
| | - David T. Levy
- grid.213910.80000 0001 1955 1644Cancer Prevention and Control Program, Georgetown University-Lombardi Comprehensive Cancer Center, 3300 Whitehaven St, Washington, DC USA
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10
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Freitas-Lemos R, Stein JS, Tegge AN, Kaplan BA, Heckman BW, McNeill A, Cummings KM, Fong GT, Bickel WK. Illegal Experimental Tobacco Marketplace II: effects of vaping product bans - findings from the 2020 International Tobacco Control Project. Tob Control 2022; 31:s214-s222. [PMID: 36328461 PMCID: PMC9664097 DOI: 10.1136/tc-2022-057515] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/04/2022] [Indexed: 11/16/2022]
Abstract
SIGNIFICANCE Restrictive e-cigarette policies may increase purchases from illegal sources. The Illegal Experimental Tobacco Marketplace (IETM) allows examination of how restrictions impact illegal purchases. We investigated (1) the effect of a vaping ban, total flavour vaping ban and partial flavour vaping ban on the probability of purchasing illegal vaping products among different regulatory environments (USA, Canada and England) and tobacco user types (cigarette smokers, dual users and e-cigarette users); and (2) the relation between ban endorsement and illegal purchases. METHODS Participants (N=459) from the International Tobacco Control Survey rated their support of bans and chose to purchase from a hypothetical legal experimental tobacco marketplace or IETM under control and the three ban conditions. RESULTS In total, 25% of cigarette smokers, 67% of dual users and 79% of e-cigarette users made IETM purchases. Cross-country comparisons depicted dual users from Canada (OR: 19.8), and e-cigarette users from the USA (OR: 12.9) exhibited higher illegal purchases odds than the same user type in England. Within-country comparisons showed e-cigarette and dual users are more likely to purchase from the IETM than cigarette smokers in the most restrictive condition, with the largest effects in e-cigarette users (England-OR: 1722.6, USA-OR: 22725.3, Canada-OR: 6125.0). Increased opposition towards partial or total flavour ban was associated with increased IETM purchasing in the corresponding condition. CONCLUSIONS Vaping restrictions may shift users' preference to the illegal marketplace in a regulatory environment. Evidence of the IETM generalisability in a geographically dispersed sample enhances its utility in tobacco regulatory science.
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Affiliation(s)
| | - Jeffrey S Stein
- Fralin Biomedical Research Institute at VTC, Roanoke, Virginia, USA
| | - Allison N Tegge
- Fralin Biomedical Research Institute at VTC, Roanoke, Virginia, USA
| | - Brent A Kaplan
- Department of Family and Community Medicine, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Bryan W Heckman
- Center for the Study of Social Determinants on Health, Meharry Medical College, Nashville, Tennessee, USA
| | - Ann McNeill
- UK Centre for Tobacco Control Studies, National Addiction Centre, Institute of Psychiatry, King's College London, London, UK
| | - K Michael Cummings
- Psychiatry & Behavioral Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Geoffrey T Fong
- Department of Psychology, University of Waterloo, Waterloo, Ontario, Canada.,Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Warren K Bickel
- Fralin Biomedical Research Institute at VTC, Roanoke, Virginia, USA
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11
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Romm KF, Henriksen L, Huang J, Le D, Clausen M, Duan Z, Fuss C, Bennett B, Berg CJ. Impact of existing and potential e-cigarette flavor restrictions on e-cigarette use among young adult e-cigarette users in 6 US metropolitan areas. Prev Med Rep 2022; 28:101901. [PMID: 35855926 PMCID: PMC9287473 DOI: 10.1016/j.pmedr.2022.101901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 11/22/2022] Open
Abstract
Given the 2020 federal restrictions on flavored cartridge-based e-cigarettes and increasing state/local flavored e-cigarette sales restrictions, this mixed-methods study examined US young adult e-cigarette users' responses to flavored e-cigarette sales restrictions (e.g., changes in use, products used, access). We descriptively analyzed Fall 2020 survey data from 726 past 6-month e-cigarette users (Mage = 24.15, 51.1% female, 4.4% Black, 10.2% Asian, 12.1% Hispanic, 35.5% sexual minority), and qualitatively analyzed Spring 2021 semi-structured interview data among 40 participants (Mage = 26.30, 35.0% female, 5.0% Black, 22.5% Asian, 12.5% Hispanic, 45.0% sexual minority). Across all participants (i.e., survey and interview participants), ≥80% most commonly used non-tobacco flavors; ≥40% used tank-based devices. Survey participants most commonly reported that the federal restrictions did not impact their use: 35.8% used available flavors (i.e., tobacco, menthol), 30.4% continued to use tank-based e-cigarettes, and 10.1% switched to tank-based e-cigarettes. Only 8.4% reduced their e-cigarette use. Among interview participants, some indicated no impact on their e-cigarette use because they stocked up or obtained flavors from alternative sources (e.g., online). Some filled their own pods with e-liquids, switched to menthol/tobacco flavors, switched e-cigarette devices or brands, and/or reduced use. Regarding the anticipated impact of comprehensive flavor restrictions, some participants reported that they would: 1) quit vaping; 2) switch to cigarettes; or 3) not change their use (e.g., stock up on flavors). The potential unintended reactions to flavored e-cigarette sales restrictions (e.g., continued use of flavored cartridge-based e-cigarettes) underscore the need for ongoing surveillance of retail and consumer behavior to inform policy and compliance/enforcement efforts.
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Affiliation(s)
- Katelyn F. Romm
- Department of Prevention and Community Health, Milken Institute School of Public Health, Washington, DC, USA
- George Washington Cancer Center, George Washington University, Washington, DC, USA
| | - Lisa Henriksen
- Stanford Prevention Research Center, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Jidong Huang
- Department of Health Policy & Behavioral Sciences, School of Public Health, Georgia State University, Atlanta, GA, USA
| | - Daisy Le
- George Washington Cancer Center, George Washington University, Washington, DC, USA
- Department of Policy, Populations, and Systems, School of Nursing, George Washington University, Washington, DC, USA
| | - Michelle Clausen
- Department of Policy, Populations, and Systems, School of Nursing, George Washington University, Washington, DC, USA
| | - Zongshuan Duan
- Department of Prevention and Community Health, Milken Institute School of Public Health, Washington, DC, USA
| | - Caroline Fuss
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | - Breesa Bennett
- Department of Epidemiology, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | - Carla J. Berg
- Department of Prevention and Community Health, Milken Institute School of Public Health, Washington, DC, USA
- George Washington Cancer Center, George Washington University, Washington, DC, USA
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12
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Freitas-Lemos R, Tegge AN, Craft WH, Tomlinson DC, Stein JS, Bickel WK. Understanding data quality: Instructional comprehension as a practical metric in crowdsourced investigations of behavioral economic cigarette demand. Exp Clin Psychopharmacol 2022; 30:415-423. [PMID: 35862135 PMCID: PMC9469988 DOI: 10.1037/pha0000579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Crowdsourcing platforms allow researchers to quickly recruit and collect behavioral economic measures in substance-using populations, such as cigarette smokers. Despite the broad utility and flexibility, data quality issues have been an object of concern. In two separate studies recruiting cigarette smokers, we sought to investigate the association between a practical quality control measure (accuracy on an instruction quiz), on internal consistency of number of cigarettes smoked per day and purchasing patterns of tobacco products in an experimental tobacco marketplace (ETM; Study 1), and in a cigarette purchase task (CPT; Study 2). Participants (N = 312 in Study 1; N = 119 in Study 2) were recruited from Amazon mechanical turk. Both studies included task instructions, a quiz, a purchase task, cigarette usage and dependence questions, and demographics. The results show that participants who answered all instruction items correctly: (a) reported the number of cigarettes per day more consistently (partial η² = 0.11, p < .001, Study 1; partial η² = 0.09, p = .016, Study 2), (b) demonstrated increased model fit among the cigarette demand curves (partial η² = 0.23, p < .001, Study 1; partial η² = 0.08, p = .002, Study 2), and purchased tobacco products in the ETM more consistently with their current usage. We conclude that instruction quizzes before purchase tasks may be useful for researchers evaluating demand data. Instruction quizzes with multiple items may allow researchers to choose the level of data quality appropriate for their studies. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Affiliation(s)
| | - Allison N. Tegge
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA,Department of Statistics, Virginia Tech, Blacksburg, VA, USA
| | - William H. Craft
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA,Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA, USA
| | - Devin C. Tomlinson
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA,Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA, USA
| | - Jeffrey S. Stein
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA
| | - Warren K. Bickel
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA
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13
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Reed DD, Strickland JC, Gelino BW, Hursh SR, Jarmolowicz DP, Kaplan BA, Amlung M. Applied Behavioral Economics and Public Health Policies: Historical Precedence and Translational Promise. Behav Processes 2022; 198:104640. [DOI: 10.1016/j.beproc.2022.104640] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/11/2022] [Accepted: 04/05/2022] [Indexed: 12/14/2022]
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14
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Gravely S, Smith DM, Liber AC, Cummings KM, East KA, Hammond D, Hyland A, O'Connor RJ, Kasza KA, Quah ACK, Loewen R, Martin N, Meng G, Ouimet J, Thompson ME, Boudreau C, McNeill A, Sweanor DT, Fong GT. Responses to potential nicotine vaping product flavor restrictions among regular vapers using non-tobacco flavors: Findings from the 2020 ITC Smoking and Vaping Survey in Canada, England and the United States. Addict Behav 2022; 125:107152. [PMID: 34695685 PMCID: PMC9094050 DOI: 10.1016/j.addbeh.2021.107152] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/03/2021] [Accepted: 10/11/2021] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Some jurisdictions have implemented nicotine vaping product (NVP) flavor restrictions because of concerns about rising adolescent use. However, little is known how these restrictions may impact adult vapers. This study describes the level of support and predictive behavioral responses to a hypothetical NVP ban on non-tobacco flavors among regular adult vapers who only use flavors that would be banned. METHODS Data came from 851 regular vapers (all current or ex-smokers) participating in the 2020 ITC Four Country Smoking and Vaping Survey in Canada, England, and the United States (US). A random sample of respondents in each country received and completed the questions about flavor bans: (1) do you support or oppose a ban on all non-tobacco flavors; and (2) what would you do if all flavors were banned, with the exception of tobacco in the US, and tobacco and menthol in Canada and England. Those who used tobacco-flavored or unflavored NVPs were excluded from all analyses, and additionally, vapers of menthol flavor in Canada and England were excluded from Aim 2. RESULTS Overall, 53.6% of vapers were strongly opposed to flavor bans, 28.2% were opposed, 9.3% were in support, 3.6% were in strong support, and 5.2% did not know. Predicted behavioral responses were: 28.8% would continue vaping an available flavor, 28.3% would find a way to get their banned flavor(s), 17.1% would stop vaping and smoke instead, 12.9% said that they would stop vaping and not smoke, and 12.9% do not know what they would do. Responses to a potential flavor ban largely varied by smoking and vaping status, and by the level of support of a flavor restriction policy. CONCLUSIONS At this time, it is not clear what net population-level consequences would occur if non-tobacco flavored NVPs were prohibited. While a majority of vapers in this study opposed this policy, and many vapers would not be willing to switch to available flavors, there was considerable variability in predicted behavioral responses.
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Affiliation(s)
- Shannon Gravely
- Department of Psychology, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
| | - Danielle M Smith
- Division of Cancer Prevention and Population Sciences, Department of Health Behaviors, Roswell Park Comprehensive Cancer Center, USA
| | - Alex C Liber
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, USA
| | - K Michael Cummings
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, USA
| | - Katherine A East
- School of Public Health and Health Systems, University of Waterloo, Canada; Department of Addictions, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK
| | - David Hammond
- School of Public Health and Health Systems, University of Waterloo, Canada
| | - Andrew Hyland
- Division of Cancer Prevention and Population Sciences, Department of Health Behaviors, Roswell Park Comprehensive Cancer Center, USA
| | - Richard J O'Connor
- Division of Cancer Prevention and Population Sciences, Department of Health Behaviors, Roswell Park Comprehensive Cancer Center, USA
| | - Karin A Kasza
- Division of Cancer Prevention and Population Sciences, Department of Health Behaviors, Roswell Park Comprehensive Cancer Center, USA
| | - Anne C K Quah
- Department of Psychology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Ruth Loewen
- Department of Psychology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Nadia Martin
- Department of Psychology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Gang Meng
- Department of Psychology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Janine Ouimet
- Department of Psychology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Mary E Thompson
- Department of Statistics and Actuarial Science, University of Waterloo, Canada
| | - Christian Boudreau
- Department of Statistics and Actuarial Science, University of Waterloo, Canada
| | - Ann McNeill
- Department of Addictions, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK; Shaping Public Health Policies to Reduce Inequalities & Harm (SPECTRUM), UK
| | | | - Geoffrey T Fong
- Department of Psychology, University of Waterloo, Waterloo, ON N2L 3G1, Canada; Ontario Institute for Cancer Research, Canada
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15
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Freitas-Lemos R, Keith DR, Tegge AN, Stein JS, Cummings KM, Bickel WK. Estimating the Impact of Tobacco Parity and Harm Reduction Tax Proposals Using the Experimental Tobacco Marketplace. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:7835. [PMID: 34360124 PMCID: PMC8345477 DOI: 10.3390/ijerph18157835] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/19/2021] [Accepted: 07/20/2021] [Indexed: 11/17/2022]
Abstract
Taxes are a demonstrably effective method to suppress tobacco use. This study examined the effects of the tobacco parity (i.e., imposing taxes equally on all tobacco products) and the harm reduction (i.e., applying taxes in proportion to the products' levels of harm) tax proposals on demand and substitution across products. A crowdsourced sample of cigarette smokers (n = 35) completed purchasing trials with increasing tax magnitudes across different tax tiers in the Experimental Tobacco Marketplace in a repeated-measures design. Products were placed in three tax tiers (high, medium, and no tax) according to each proposal's goal. The results indicated that total nicotine (mg) purchased was not significantly different between the proposals, with higher taxes yielding lower demand. However, as taxes increased, the tobacco parity proposal decreased the purchasing of all tobacco products and increased the purchasing of medicinal nicotine (i.e., the no tax tier). Conversely, the harm reduction proposal resulted in greater purchases of electronic nicotine delivery systems and smokeless tobacco (i.e., the medium tax tier). These findings support tobacco taxation as a robust tool for suppressing purchasing and suggest that differential taxation in proportion to product risk would be an effective way to incentivize smokers to switch from smoked to unsmoked products. Further studies should investigate the unintended consequences of their implementation.
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Affiliation(s)
- Roberta Freitas-Lemos
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA 24016, USA; (R.F.-L.); (D.R.K.); (A.N.T.); (J.S.S.)
| | - Diana R. Keith
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA 24016, USA; (R.F.-L.); (D.R.K.); (A.N.T.); (J.S.S.)
| | - Allison N. Tegge
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA 24016, USA; (R.F.-L.); (D.R.K.); (A.N.T.); (J.S.S.)
- Department of Statistics, Virginia Tech, Blacksburg, VA 24060, USA
| | - Jeffrey S. Stein
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA 24016, USA; (R.F.-L.); (D.R.K.); (A.N.T.); (J.S.S.)
| | - K. Michael Cummings
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC 29425, USA;
| | - Warren K. Bickel
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA 24016, USA; (R.F.-L.); (D.R.K.); (A.N.T.); (J.S.S.)
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