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Cornacchione Ross J, Kowitt SD, Jarman KL, Ranney LM, Lazard AJ, Thrasher JF, Sheeran P, Goldstein AO. Perceived message effectiveness of cigar warning themes among adults in the United States. Prev Med Rep 2023; 34:102236. [PMID: 37234566 PMCID: PMC10206194 DOI: 10.1016/j.pmedr.2023.102236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 03/04/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Most tobacco warnings focus on health harms to the consumer, but other message themes may be promising. We assessed perceived message effectiveness (PME) among adults who smoke cigars for 12 cigar warning statements to discourage smoking, and measured PME across four message themes: explicit health effects to the consumer, secondhand smoke effects, chemicals/constituents, and toxicity. Between April 23 and May 7, 2020, we conducted an online study with U.S. adults who used any cigar type in the past 30 days (n = 777). Participants were randomly assigned to view two out of 12 warnings and rate each one on PME. We analyzed PME mean ratings (range 1 [low] to 5 [high]). The warning statements for lung cancer (M = 3.91) and heart disease (M = 3.77) had the highest PME ratings; secondhand smoke (M = 3.50) and formaldehyde (M = 3.48) had the lowest PME ratings. Multilevel analyses showed that the explicit health effects theme was associated with higher PME ratings compared to other warning themes (ps < 0.05 for chemicals/constituents and secondhand smoke effects) except toxicity (p =.16). Higher awareness of consequences was associated with higher PME ratings (p <.001). Higher nicotine dependence was also associated with higher PME ratings (p = .004). Warning statements with information addressing the themes of health harms and toxicity could potentially inform those who smoke cigars about the broader harms of cigar use and should be considered in FDA labeling regulations for cigars.
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Affiliation(s)
- Jennifer Cornacchione Ross
- Department of Social Sciences and Health Policy, Division of Public Health Sciences, Wake Forest University School of Medicine, Winston Salem, NC 27157, USA
- Department of Health Law, Policy, and Management, School of Public Health, Boston University, Boston, MA 02118, USA
| | - Sarah D. Kowitt
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Kristen L. Jarman
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Leah M. Ranney
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Allison J. Lazard
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Hussman School of Journalism and Media, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - James F. Thrasher
- Department of Health Promotion, Education, and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
| | - Paschal Sheeran
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Adam O. Goldstein
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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Odunsi IA, Farris KL. Predicting College Students’ Preventative Behavior During a Pandemic: The
Role of the Health Belief Model, Source Credibility, and Health Literacy. THE AMERICAN BEHAVIORAL SCIENTIST 2023:00027642231164044. [PMCID: PMC10186130 DOI: 10.1177/00027642231164044] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
In this study, we examined the effects of perceived source credibility of the Centers for Disease Control (CDC) and college student health literacy in predicting the likelihood of enacting preventative behaviors related to mitigating COVID-19. Using the Health Belief Model (HBM) as an explanatory tool, we analyzed how perceived source credibility and health literacy levels predict college students’ likelihood to enact preventative behaviors during a public health crisis. Sample population entirely consisted of undergraduate students enrolled in a basic communication course at a large, southern university. The participants completed survey questionnaires about their perceived health literacy, health beliefs, trust in the CDC, perceptions of COVID-19, and demographic measures during the fall 2020 semester. A multiple regression analysis revealed that (a) HBM predictors, health literacy and CDC source credibility accounted for 44% of the variance in likelihood of enacting preventative health behaviors, and (b) health literacy, CDC source credibility, and perceived severity were all positive predictors of enacting preventative health behaviors, while (c) perceived barriers negatively predicted enactment of preventative health behaviors. Perceived susceptibility and perceived benefits were not significant predictors of college student risk mitigation. Our data suggests the importance of health literacy and source credibility in predicting college students’ likelihood to enact preventative behaviors during public health crises.
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Affiliation(s)
| | - Kristen Leblanc Farris
- Department of Communication Studies, College
of Fine Art and Communication, Texas State University, San Marcos, TX, USA
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3
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The influence of health star rating labels on plant-based foods: the moderating role of consumers’ believability. Food Qual Prefer 2023. [DOI: 10.1016/j.foodqual.2023.104827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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4
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Giovenco DP, Spillane TE, Talbot E, Wackowski OA, Audrain-McGovern J, Ganz O, Delnevo CD. Packaging Characteristics of Top-Selling Cigars in the United States, 2018. Nicotine Tob Res 2022; 24:1678-1683. [PMID: 35287167 PMCID: PMC9575977 DOI: 10.1093/ntr/ntac070] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/03/2022] [Accepted: 03/11/2022] [Indexed: 11/14/2022]
Abstract
INTRODUCTION Tobacco product packaging is an influential industry marketing tool, but research on cigar packaging characteristics is limited. This study leveraged a pack archive of the top-selling, mass-market cigar products in the US and their corresponding sales data to assess the prevalence of common pack features in the marketplace. METHODS The 50 cigar products with the highest national unit sales in 2018 were identified using Nielsen's Scantrack data. A content analysis captured common packaging features within four domains: physical, textual, graphical, and promotional elements. Descriptive statistics, weighted by each pack's 2018 unit sales, documented the market share of pack characteristics overall and by brand. RESULTS Products in the sample constituted 62% of all convenience store cigar sales in 2018. Black & Mild, the most popular brand, did not display warning labels on its single stick, cellophane-wrapped products, which constituted nearly all of its sales (96.3%). Resealable foil pouches were the most common packaging style across other brands, and were most often sold in predominantly red, green, or silver packaging. Common flavor categories included concept (eg, "Jazz", 32.4%), fruit (15.7%), and sweet (14.5%). Prepricing (eg, "2 for 99 cents") was a popular promotional strategy, appearing on 74% of all packs sold. CONCLUSIONS Cigar packaging features such as small pack sizes, innovative materials, flavor names, bright colors, and cost-saving promotions are prevalent among the top-selling products. Stronger packaging-focused policies at the federal and local levels may help reduce appeal and potentially curb cigar use. IMPLICATIONS Sales of mass-market cigars in the US have remained strong over the past decade, propelled by lax product regulations. This study demonstrated that cigar packaging features that may enhance consumer appeal, such as small pack sizes, flavor names, sensory descriptors, bright colors, and cost-saving promotions, are prevalent among the top-selling products. Stronger packaging-focused policies at the federal and local levels may help curb cigar use, reduce youth appeal, and potentially minimize existing disparities in cigar use.
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Affiliation(s)
- Daniel P Giovenco
- Department of Sociomedical Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Torra E Spillane
- Department of Sociomedical Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Eugene Talbot
- Rutgers Center for Tobacco Studies, Rutgers Biomedical and Health Sciences, New Brunswick, NJ, USA
| | - Olivia A Wackowski
- Rutgers Center for Tobacco Studies, Rutgers Biomedical and Health Sciences, New Brunswick, NJ, USA.,Department of Health Behavior, Society and Policy, Rutgers School of Public Health, Piscataway, NJ, USA
| | - Janet Audrain-McGovern
- Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Ollie Ganz
- Rutgers Center for Tobacco Studies, Rutgers Biomedical and Health Sciences, New Brunswick, NJ, USA.,Department of Health Behavior, Society and Policy, Rutgers School of Public Health, Piscataway, NJ, USA
| | - Cristine D Delnevo
- Rutgers Center for Tobacco Studies, Rutgers Biomedical and Health Sciences, New Brunswick, NJ, USA.,Department of Health Behavior, Society and Policy, Rutgers School of Public Health, Piscataway, NJ, USA
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5
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Czaplicki L, Hardesty J, Crespi E, Yang T, Kennedy RD. Identifying credible attribution sources for cigarette health warning labels in China: results from a cross-sectional survey of Chinese adults. BMJ Open 2022; 12:e058946. [PMID: 35568497 PMCID: PMC9109087 DOI: 10.1136/bmjopen-2021-058946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 04/22/2022] [Indexed: 12/04/2022] Open
Abstract
OBJECTIVE The Framework Convention on Tobacco Control recommends health warning labels (HWLs) include an attribution source. Little is known regarding the perceived credibility and effectiveness of different message sources. This study examined perceptions of four HWL attribution sources among adults in China - the world's largest consumer of cigarettes. DESIGN Cross-sectional experimental survey design. PARTICIPANTS Data were collected in 2017 from a convenience sample of 1999 adults across four cities in China; 80% of the sample were current smokers. MAIN OUTCOME MEASURES Participants viewed four versions of the same HWL, each with a different attribution source: the China Center for Disease Control (ref. group); the regulatory arm of China's domestic tobacco company (STMA); Liyuan Peng, China's first lady; and the WHO. Respondents indicated which HWL was the most: (1) credible, (2) effective at making people quit and (3) effective at preventing youth initiation. RESULTS Multinomial logistic regression models estimated adjusted relative risk ratios (aRRRs) of the three outcomes. Controlling for demographics and smoking status, HWLs attributed to STMA and Liyuan Peng, respectively, were perceived as significantly less credible (aRRR=0.81, p<0.001; aRRR=0.31, p<0.001), less effective at making people quit (aRRR=0.46, p<0.001; aRRR=0.24, p<0.001) and less effective at preventing young smoking (aRRR=0.52, p<0.001; aRRR=0.39, p<0.001) than the China CDC HWL. There were no significant differences in perceived effectiveness of between the WHO and China CDC HWLs. Participants viewed the WHO HWL as significantly more credible (aRRR=1.21, p<0.001) than the China CDC HWL. CONCLUSION Results suggest the unique role of health organisations in conveying smoking-related messages that appear credible and effective at motivating others to quit smoking or never start smoking in China. Findings can inform global recommendations regarding HWL attribution sources.
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Affiliation(s)
- Lauren Czaplicki
- Institute for Global Tobacco Control, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Jeffrey Hardesty
- Institute for Global Tobacco Control, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Elizabeth Crespi
- Institute for Global Tobacco Control, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Tingzhong Yang
- Center for Tobacco Control Research, Zhejiang University, Hangzhou, Zhejiang, China
- Womens' Hospital, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ryan David Kennedy
- Institute for Global Tobacco Control, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
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6
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Gratale SK, Teotia A, Chen-Sankey J, Ganz O, Delnevo CD, Strasser AA, Wackowski OA. Cigar Warning Noticing and Demographic and Usage Correlates: Analysis from the United States Population Assessment of Tobacco and Health Study, Wave 5. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:3221. [PMID: 35328908 PMCID: PMC8952384 DOI: 10.3390/ijerph19063221] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/03/2022] [Accepted: 03/05/2022] [Indexed: 12/10/2022]
Abstract
Although cigars pose health risks similar to cigarettes, their packaging/marketing is not subject to commensurate regulation in the US. In a 2000 agreement with the Federal Trade Commission, seven major manufacturers agreed to use some form of cigar warning. In 2016, the Food and Drug Administration passed a rule requiring larger standardized warnings, but the requirement was successfully challenged in court. Here, we examined U.S. population-level trends in noticing existing cigarillo, traditional and filtered cigar warnings. We analyzed Wave 5 Population Assessment of Tobacco and Health adult data to assess prevalence of past-30 day warning noticing and associations with socio-demographic and tobacco use variables. Noticing was higher among current users of cigarillos (27%), filtered (34%) and traditional cigars (21%), than non-users (8% for each product, p < 0.0001), and among every-day vs. some-day users, established vs. experimental users, and past-30 day users vs. those without past-30 day use. Results varied by product, but generally indicated lower noticing among non-Hispanic Whites and dual cigarette users, but higher noticing among those purchasing cigars by the box/pack (vs. not purchasing for themselves). Low overall noticing but higher prevalence among frequent users underscores a need for a stronger, uniform cigar warning label policy in the US.
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Affiliation(s)
- Stefanie K. Gratale
- Rutgers Center for Tobacco Studies, Rutgers Biomedical and Health Sciences, Rutgers University, New Brunswick, NJ 08901, USA; (A.T.); (J.C.-S.); (O.G.); (C.D.D.); (O.A.W.)
| | - Arjun Teotia
- Rutgers Center for Tobacco Studies, Rutgers Biomedical and Health Sciences, Rutgers University, New Brunswick, NJ 08901, USA; (A.T.); (J.C.-S.); (O.G.); (C.D.D.); (O.A.W.)
| | - Julia Chen-Sankey
- Rutgers Center for Tobacco Studies, Rutgers Biomedical and Health Sciences, Rutgers University, New Brunswick, NJ 08901, USA; (A.T.); (J.C.-S.); (O.G.); (C.D.D.); (O.A.W.)
- Department of Health Behavior, Society and Policy, Rutgers School of Public Health, Rutgers University, Piscataway, NJ 08854, USA
| | - Ollie Ganz
- Rutgers Center for Tobacco Studies, Rutgers Biomedical and Health Sciences, Rutgers University, New Brunswick, NJ 08901, USA; (A.T.); (J.C.-S.); (O.G.); (C.D.D.); (O.A.W.)
- Department of Health Behavior, Society and Policy, Rutgers School of Public Health, Rutgers University, Piscataway, NJ 08854, USA
| | - Cristine D. Delnevo
- Rutgers Center for Tobacco Studies, Rutgers Biomedical and Health Sciences, Rutgers University, New Brunswick, NJ 08901, USA; (A.T.); (J.C.-S.); (O.G.); (C.D.D.); (O.A.W.)
- Department of Health Behavior, Society and Policy, Rutgers School of Public Health, Rutgers University, Piscataway, NJ 08854, USA
| | - Andrew A. Strasser
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA;
| | - Olivia A. Wackowski
- Rutgers Center for Tobacco Studies, Rutgers Biomedical and Health Sciences, Rutgers University, New Brunswick, NJ 08901, USA; (A.T.); (J.C.-S.); (O.G.); (C.D.D.); (O.A.W.)
- Department of Health Behavior, Society and Policy, Rutgers School of Public Health, Rutgers University, Piscataway, NJ 08854, USA
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7
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Her W, Oh YS. Examining the Mediating Effect of Believability on the Relationship between Social Influences and Smoking Behavior for Smoking Cessation among Korean Youths. Int J Ment Health Addict 2021. [DOI: 10.1007/s11469-021-00645-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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8
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Kowitt SD, Jarman KL, Cornacchione Ross J, Ranney LM, Smith CA, Kistler CE, Lazard A, Sheeran P, Thrasher JF, Goldstein AO. Designing more effective cigar warnings: an experiment among adult cigar smokers. Nicotine Tob Res 2021; 24:617-622. [PMID: 34628506 DOI: 10.1093/ntr/ntab207] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 10/07/2021] [Indexed: 11/14/2022]
Abstract
INTRODUCTION Little systematic evidence exists about the effectiveness of cigar warnings. This study examined the perceived message effectiveness (PME) of warning statements about different health consequences caused by cigars. PME is a validated self-report scale of how effectively a health message discourages smoking. METHODS We conducted an online study from April-May 2020 with adults in the United States who used cigars in the past 30 days (n=777). Participants were randomly assigned to view and rate PME (3 items, range 1 to 5) for 7 out of 37 text warning statements about different health consequences from cigar use. Linear mixed effects models evaluated the most effective warning characteristics (e.g., type of health consequence), controlling for repeated measures and participant demographics. RESULTS Analyses showed that health consequences about the cardiovascular system (B=0.38), mouth (B=0.40), other digestive (B=0.45), respiratory system (B=0.36), and early death (B=0.36) were associated with higher PME scores than reproductive health consequences (all p-values <0.001). Similar results were found for these health consequences compared to addiction (all p-values p<0.001). We also observed that awareness of the health consequence was associated with higher PME scores (B=0.19, p<0.001) and length of the warning message (number of characters) was associated with lower PME scores (B=-0.007, p=0.03). No differences were observed between cancer and non-cancer health consequences (p=0.27) or health consequences that used plain language vs. medical jargon (p=0.94). CONCLUSIONS Our study provides new evidence about the perceived effectiveness of different cigar health warning statements and identifies features that may strengthen statements. IMPLICATIONS Our study with cigar smokers from across the United States provides much-needed evidence concerning the perceived effectiveness of different cigar health warning statements and features that may strengthen such statements. Mandated cigar warnings in the United States could be strengthened by including health consequences that were perceived as more effective in our study (e.g., early death), using health consequences that participants were aware of, and using short warning statements.
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Affiliation(s)
- Sarah D Kowitt
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Kristen L Jarman
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Jennifer Cornacchione Ross
- Department of Social Sciences and Health Policy, Division of Public Health Sciences, Wake Forest School of Medicine, Winston Salem, NC
| | - Leah M Ranney
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Caleb A Smith
- School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Christine E Kistler
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC.,School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Allison Lazard
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC.,Hussman School of Journalism and Media, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Paschal Sheeran
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC.,Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - James F Thrasher
- . Department of Health Promotion, Education, and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208
| | - Adam O Goldstein
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC.,Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
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Wackowski OA, Jeong M, Schroth KRJ, Rashid M, Delnevo CD. Experts' Perceptions of and Suggestions for Cigar Warning Label Messages and Pictorials. Nicotine Tob Res 2021; 23:1382-1388. [PMID: 33507272 DOI: 10.1093/ntr/ntab012] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 01/25/2021] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Warning labels can be effective tools to inform the public about tobacco risks. However, tobacco warning research has been largely cigarette-centric. This formative study explores potential directions for improving the current warnings for cigars. AIMS AND METHODS Between June and August 2019, we conducted interviews with 10 experts about the current cigar warning statements and requirements, the inclusion of pictorials in cigar warnings, and legal issues. Additionally, experts viewed and discussed concept images to pair with existing warning statements, including realistic photographic images and symbolic images (eg, icons, caution symbols). RESULTS Experts agreed that cigar warnings should be strengthened (eg, by increasing their size and use of pictorials) to better leverage their potential impact and maintain warning parity with cigarettes. However, perceived challenges exist given the wide variety of cigar products, product terminology, and use patterns. Experts agreed that photographic pictorials of health effects are likely to be more salient, informative, and effective for behavior change than symbolic ones, but may be vulnerable to legal challenges. Symbolic images used in warnings may obtain attention in a less "controversial" way, but may be considered less serious and "factually accurate," increasing legal risks. Experts indicate that cigar educational campaigns can complement warnings and address additional themes, especially aimed at youth, including exposure to chemicals and flavorings and misperceptions that cigars are "natural." CONCLUSIONS Additional consumer research is needed to examine the potential public health impact of improving cigar warnings and to support regulatory efforts. IMPLICATIONS This study provides feedback from tobacco control experts about the importance of cigar warning labels and directions for future research and improvements. Experts support increasing the size of cigar warnings and adopting pictorials to improve cigar warning impact and maintain warning parity with cigarettes. Experts agreed that photographic pictorials of health effects are likely to be more salient and effective for behavior change than symbolic ones. Given legal challenges, experts discussed potentially prioritizing warning improvements for those cigars used most frequently as cigarette alternatives and by youth. Overall, more cigar warning research is needed to support regulatory efforts.
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Affiliation(s)
- Olivia A Wackowski
- Rutgers Center for Tobacco Studies, Rutgers University, New Brunswick, NJ, USA
| | - Michelle Jeong
- Rutgers Center for Tobacco Studies, Rutgers University, New Brunswick, NJ, USA
| | - Kevin R J Schroth
- Rutgers Center for Tobacco Studies, Rutgers University, New Brunswick, NJ, USA
| | - Mariam Rashid
- Rutgers Center for Tobacco Studies, Rutgers University, New Brunswick, NJ, USA
| | - Cristine D Delnevo
- Rutgers Center for Tobacco Studies, Rutgers University, New Brunswick, NJ, USA
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Pang B, Saleme P, Seydel T, Kim J, Knox K, Rundle-Thiele S. The effectiveness of graphic health warnings on tobacco products: a systematic review on perceived harm and quit intentions. BMC Public Health 2021; 21:884. [PMID: 34011338 PMCID: PMC8135180 DOI: 10.1186/s12889-021-10810-z] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 04/12/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Examination of the format and framing of the graphic health warnings (GHWs) on tobacco products and their impact on tobacco cessation has received increasing attention. This review focused on systematically identifying and synthesizing evidence of longitudinal studies that evaluate different GHW formats and specifically considered GHW influence on perceived risk of tobacco use and quit intentions. METHODS Ten databases were systematically searched for relevant records in December 2017 and again in September 2019. Thirty-five longitudinal studies were identified and analyzed in terms of the formatting of GHWs and the outcomes of perceived risk and quit intentions. Quality assessment of all studies was conducted. RESULTS This review found graphics exceeding 50% of packs were the most common ratio for GHWs, and identified an ongoing reliance on negatively framed messages and limited source attribution. Perceived harms and quit intentions were increased by GHWs. However, wear-out effects were observed regardless of GHW format indicating the length of time warnings are present in market warrants ongoing research attention to identify wear out points. Quit intentions and perceived harm were also combined into a cognitive response measure, limiting the evaluation of the effects of each GHW format variables in those cases. In addition, alternative GHW package inserts were found to be a complimentary approach to traditional GHWs. CONCLUSIONS This review demonstrated the role of GHWs on increasing quit intentions and perceptions of health risks by evaluating quality-assessed longitudinal research designs. The findings of this study recommend testing alternate GHW formats that communicate quit benefits and objective methodologies to extend beyond self-report.
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Affiliation(s)
- Bo Pang
- Social marketing @ Griffith, Department of Marketing, Griffith University, 170 Kessels Road, Nathan, QLD 4111 Australia
| | - Pamela Saleme
- Social marketing @ Griffith, Department of Marketing, Griffith University, 170 Kessels Road, Nathan, QLD 4111 Australia
| | - Tori Seydel
- Social marketing @ Griffith, Department of Marketing, Griffith University, 170 Kessels Road, Nathan, QLD 4111 Australia
| | - Jeawon Kim
- Social marketing @ Griffith, Department of Marketing, Griffith University, 170 Kessels Road, Nathan, QLD 4111 Australia
| | - Kathy Knox
- Social marketing @ Griffith, Department of Marketing, Griffith University, 170 Kessels Road, Nathan, QLD 4111 Australia
| | - Sharyn Rundle-Thiele
- Social marketing @ Griffith, Department of Marketing, Griffith University, 170 Kessels Road, Nathan, QLD 4111 Australia
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Jovanova M, Skurka C, Byrne S, Kalaji M, Greiner Safi A, Porticella N, Mathios AD, Avery RJ, Dorf MC, Niederdeppe J. Should Graphic Warning Labels Proposed for Cigarette Packages Sold in the United States Mention the Food and Drug Administration? Nicotine Tob Res 2021; 23:402-406. [PMID: 32770222 DOI: 10.1093/ntr/ntaa142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 07/29/2020] [Indexed: 11/14/2022]
Abstract
INTRODUCTION Under the US Family Smoking Prevention and Tobacco Control Act, the US Food and Drug Administration (FDA) has the authority to implement graphic warning labels (GWLs) on cigarette packages. Neither the original labels proposed by the FDA nor the revised labels include a source to indicate sponsorship of the warnings. This study tests the potential impact of adding a sponsor to the content of GWLs. METHODS We recruited adult smokers (N = 245) and middle-school youth (N = 242) from low-income areas in the Northeastern US. We randomly assigned participants to view one of three versions of the original FDA-proposed warning labels in a between-subjects experiment: no sponsor, "US Food and Drug Administration," or "American Cancer Society" sponsor. We tested the effect of varying sponsorship on source attribution and source credibility. RESULTS Compared to unsponsored labels, FDA sponsorship increased source attributions that the FDA sponsored the labels among both middle-school, largely nonsmoking youth and adult smokers. However, sponsorship had no effect on source credibility among either population. CONCLUSIONS We found no evidence that adding FDA as the source is likely to boost source credibility judgments, at least in the short term; though doing so would not appear to have adverse effects on credibility judgments. As such, our data are largely consistent with the Tobacco Control Act's provisions that allow, but do not require, FDA sponsorship on the labels. IMPLICATIONS This study addresses the FDA's regulatory efforts by informing the possible design and content of future cigarette warning labels. Our results do not offer compelling evidence that adding the FDA name on GWLs will directly increase source credibility. Future work may test more explicit FDA source labeling and continue to examine the credibility of tobacco message content among high-priority populations.
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Affiliation(s)
- Mia Jovanova
- Annenberg School for Communication, University of Pennsylvania, Philadelphia, PA
| | - Chris Skurka
- Department of Film/Video and Media Studies, Donald P. Bellisario College of Communications, Penn State University, University Park, PA
| | - Sahara Byrne
- Department of Communication, Cornell University, Ithaca, NY
| | - Motasem Kalaji
- Department of Communication, Cornell University, Ithaca, NY
| | - Amelia Greiner Safi
- Department of Population Medicine and Diagnostic Sciences, Cornell University, Ithaca, NY
| | | | - Alan D Mathios
- Department of Policy Analysis and Management, Cornell University, Ithaca, NY
| | - Rosemary J Avery
- Department of Policy Analysis and Management, Cornell University, Ithaca, NY
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Perry CL, Creamer MR, Chaffee BW, Unger JB, Sutfin EL, Kong G, Shang C, Clendennen SL, Krishnan-Sarin S, Pentz MA. Research on Youth and Young Adult Tobacco Use, 2013-2018, From the Food and Drug Administration-National Institutes of Health Tobacco Centers of Regulatory Science. Nicotine Tob Res 2020; 22:1063-1076. [PMID: 31127298 PMCID: PMC7457341 DOI: 10.1093/ntr/ntz059] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 04/16/2019] [Indexed: 12/21/2022]
Abstract
The Tobacco Regulatory Science Program is a collaborative research effort between the National Institutes of Health (NIH) and the Food and Drug Administration (FDA). In 2013, the NIH funded 14 Tobacco Centers of Regulatory Science (TCORS), which serve as partners in establishing research, training, and professional development programs to guide FDA. Each of the fourteen TCORS, and two other NIH-funded research programs, the Center for the Evaluation of Nicotine in Cigarettes (CENIC) and the Consortium on Methods Evaluating Tobacco (COMET), pursued specific research themes relevant to FDA's priorities. A key mandate for FDA is to reduce tobacco use among young people. This article is a review of the peer-reviewed research, including published and in-press manuscripts, from the TCORS, CENIC, and COMET, which provides specific data or other findings on youth (ages 10-18 years) and/or young adults (ages 18-34 years), from 2013 to 2018. Citations of all TCORS, CENIC, and COMET articles from September 2013 to December 2017 were collected by the TCORS coordinating center, the Center for Evaluation and Coordination of Training and Research. Additional citations up to April 30, 2018 were requested from the principal investigators. A scoring rubric was developed and implemented to assess study type, primary theme, and FDA priority area addressed by each article. The major subareas and findings from each priority area are presented. There were 766 articles in total, with 258 (34%) focusing on youth and/or young adults. Findings relevant to FDA from this review concern impact analysis, toxicity, health effects, addiction, marketing influences, communications, and behavior. IMPLICATIONS The Tobacco Centers of Regulatory Science, CENIC, and COMET have had a high output of scientific articles since 2013. These Centers are unique in that the FDA supports science specifically to guide future regulatory actions. The 258 articles that have focused on youth and/or young adults are providing data for regulatory actions by the FDA related to the key priority areas such as the addictiveness of non-cigarette products, the effects of exposure to electronic cigarette marketing on initiation and cessation, and the impact of flavored products on youth and young adult tobacco use. Future regulations to reduce tobacco use will be guided by the cumulative evidence. These Centers are one innovative mechanism to promote important outcomes to advance tobacco regulatory science.
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Affiliation(s)
- Cheryl L Perry
- School of Public Health at Austin, The University of Texas Health Science Center at Houston, Austin, TX
| | - MeLisa R Creamer
- School of Public Health at Austin, The University of Texas Health Science Center at Houston, Austin, TX
| | | | - Jennifer B Unger
- Keck School of Medicine,University of Southern California, Los Angeles, CA
| | | | | | - Ce Shang
- Oklahoma Tobacco Research Center, Stephenson Cancer Center
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Stephanie L Clendennen
- School of Public Health at Austin, The University of Texas Health Science Center at Houston, Austin, TX
| | | | - Mary Ann Pentz
- Keck School of Medicine,University of Southern California, Los Angeles, CA
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Kowitt SD, Sheeran P, Jarman KL, Ranney LM, Schmidt AM, Noar SM, Huang LL, Goldstein AO. Cigarette Constituent Health Communications for Smokers: Impact of Chemical, Imagery, and Source. Nicotine Tob Res 2020; 21:841-845. [PMID: 29059359 DOI: 10.1093/ntr/ntx226] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 09/27/2017] [Indexed: 11/12/2022]
Abstract
INTRODUCTION Communication campaigns are incorporating tobacco constituent messaging to reach smokers, yet there is a dearth of research on how such messages should be constructed or will be received by smokers. METHODS In a 2 × 2 × 2 experiment, we manipulated three cigarette constituent message components: (1) the toxic constituent of tobacco (arsenic vs. lead) with a corresponding health effect, (2) the presence or absence of an evocative image, and (3) the source of the message (FDA vs. no source). We recruited smokers (N = 1669, 55.4% women) via an online platform and randomized them to one of the eight message conditions. Participants viewed the message and rated its believability and perceived effectiveness, the credibility of the message source, and action expectancies (ie, likelihood of seeking additional information and help with quitting as a result of seeing the message). RESULTS We found significant main effects of image, constituent, and source on outcomes. The use of arsenic as the constituent, the presence of an evocative image, and the FDA as the source increased the believability, source credibility, and perceived effectiveness of the tobacco constituent health message. CONCLUSIONS Multiple elements of a constituent message, including type of constituent, imagery, and message source, impact their reception among smokers. Specifically, communication campaigns targeting smokers that utilize arsenic as the tobacco constituent, visual imagery, and the FDA logo may be particularly effective in changing key outcomes that are associated with subsequent attitude and behavioral changes. IMPLICATIONS This article describes how components of communication campaigns about cigarette constituents are perceived. Multiple elements of a tobacco constituent message, including type of constituent, image, and message source may influence the reception of messages among current smokers. Communication campaigns targeting smokers that utilize arsenic as the tobacco constituent, visual imagery, and the FDA logo may be particularly effective in changing key outcomes among smokers. The effects of such campaigns should be examined, as well as the mechanisms through which such campaigns affect change.
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Affiliation(s)
- Sarah D Kowitt
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Paschal Sheeran
- Department of Psychology & Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Kristen L Jarman
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Leah M Ranney
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Allison M Schmidt
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Seth M Noar
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC.,School of Media and Journalism, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Li-Ling Huang
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Adam O Goldstein
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC.,Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
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14
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Shi J, Colder Carras M, Potenza MN, Turner NE. A Perspective on Age Restrictions and Other Harm Reduction Approaches Targeting Youth Online Gambling, Considering Convergences of Gambling and Videogaming. Front Psychiatry 2020; 11:601712. [PMID: 33584369 PMCID: PMC7873963 DOI: 10.3389/fpsyt.2020.601712] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 12/28/2020] [Indexed: 12/02/2022] Open
Abstract
Internet gambling has become a popular activity among some youth. Vulnerable youth may be particularly at risk due to limited harm reduction and enforcement measures. This article explores age restrictions and other harm reduction measures relating to youth and young adult online gambling. A systematic rapid review was conducted by searching eight databases. Additional articles on online gambling (e.g., from references) were later included. To place this perspective into context, articles on adult gambling, land-based gambling, and substance use and other problematic behaviors were also considered. Several studies show promising findings for legally restricting youth from gambling in that such restrictions may reduce the amount of youth gambling and gambling-related harms. However, simply labeling an activity as "age-restricted" may not deter youth from gambling; in some instances, it may generate increased appeal for gambling. Therefore, advertising and warning labels should be examined in conjunction with age restrictions. Recommendations for age enforcement strategies, advertising, education, and warning labels are made to help multiple stakeholders including policymakers and public health officials internationally. Age restrictions in online gambling should consider multiple populations including youth and young adults. Prevention and harm reduction in gambling should examine how age-restriction strategies may affect problem gambling and how they may be best enforced across gambling platforms. More research is needed to protect youth with respect to online gambling.
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Affiliation(s)
- Jing Shi
- Institute for Mental Health Policy Research, Center for Addiction and Mental Health, Toronto, ON, Canada.,School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | - Michelle Colder Carras
- JHU Global mHealth Initiative, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Marc N Potenza
- Department of Psychiatry and Child Study Center, Yale University School of Medicine, New Haven, CT, United States.,Connecticut Council on Problem Gambling, Wethersfield, CT, United States.,Connecticut Mental Health Center, New Haven, CT, United States.,Department of Neuroscience, Yale University, New Haven, CT, United States
| | - Nigel E Turner
- Institute for Mental Health Policy Research, Center for Addiction and Mental Health, Toronto, ON, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.,Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, ON, Canada
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Kong G, Creamer MR, Simon P, Cavallo DA, Ross JC, Hinds JT, Fishbein H, Gutierrez K. Systematic review of cigars, cigarillos, and little cigars among adolescents: Setting research agenda to inform tobacco control policy. Addict Behav 2019; 96:192-197. [PMID: 31125939 PMCID: PMC6645397 DOI: 10.1016/j.addbeh.2019.04.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 04/01/2019] [Accepted: 04/28/2019] [Indexed: 01/06/2023]
Abstract
INTRODUCTION We conducted a systematic review of the literature on cigar research on youth to identify potential future research agenda to generate evidence to inform cigar regulations to prevent cigar use among youth. METHODS We searched articles on Medline, EMBASE, and PsycINFO in April 2017 to identify articles relevant to cigars and adolescents. Two independent coders examined 48 articles to determine eligibility: (1) published between 2000-April 2017; (2) published in English; (3) conducted in the United States; (4) published in a peer-review journal; (5) examined cigars, cigarillos, or little cigars; (6) included youth (12-18 years old); and (7) included empirical data. Three independent coders reviewed the included articles (n = 48) to identify whether the studies addressed FDA's Research Priorities. RESULTS The studies addressed FDA's Research Priorities of "behavior" (n = 48), "communications" (n = 4), "marketing influences" (n = 1), and "impact analysis" (n = 1). Studies on "behavior" underscored the need for improvements in measurement, such as using brand names and distinguishing cigar products. The review revealed the need for restrictions on cigar flavors, development of media campaigns and interventions, increasing the cost (via taxation), and evaluating the impact of cigar policies. CONCLUSIONS The studies mostly focused on surveillance of behaviors and use patterns, which revealed cigar specific issues to address in policies to decrease cigar use among youth. The lack of studies addressing other FDA's research priorities highlighted the critical need for future studies that inform prevention of youth cigar use.
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Affiliation(s)
- Grace Kong
- Yale School of Medicine, Department of Psychiatry, New Haven, CT 06519, United States of America.
| | - MeLisa R Creamer
- UTHealth The University of Texas Health Science Center at Houston School of Public Health in Austin, Austin, TX 78701, United States of America
| | - Patricia Simon
- Yale School of Medicine, Department of Psychiatry, New Haven, CT 06519, United States of America
| | - Dana A Cavallo
- Yale School of Medicine, Department of Psychiatry, New Haven, CT 06519, United States of America
| | - Jennifer Cornacchione Ross
- Wake Forest School of Medicine, Department of Social Sciences & Health Policy, Winston Salem, NC 27101, United States of America
| | - Josephine T Hinds
- The University of Texas at Austin, Department of Kinesiology & Health Education, Austin, TX 78712, United States of America
| | | | - Kevin Gutierrez
- Yale School of Medicine, Department of Psychiatry, New Haven, CT 06519, United States of America
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Jarman KL, Kowitt SD, Queen TL, Ranney LM, Kim K, Jones EE, Donovan E, Goldstein AO. Do Smokers Recall Source or Quitline on Cigarette Constituent Messages? TOB REGUL SCI 2018; 4:66-82. [PMID: 31414036 PMCID: PMC6693861 DOI: 10.18001/trs.4.6.7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES The Food and Drug Administration (FDA) is required under the Family Smoking Prevention and Tobacco Control Act to communicate the risks of tobacco use to the public. Little research exists about methods to communicate the constituents of tobacco in a media campaign. This research examines specific strategies to increase effectiveness of a media campaign for cigarette smoking adults about tobacco constituents by including engagement text about smoking cessation and FDA as the source of the campaign. METHODS In an eye tracking study of 211 current cigarette smokers, participants randomly viewed 4 cigarette constituent messages that varied engagement text for quitting (benefits of quitting and quitline number, presence, absence) and by FDA source (presence, absence). After the eye tracking session, participants were asked about recall of the national quitline number and the source of message. RESULTS Participants in conditions with engagement text were significantly more likely than those in the no engagement conditions to recall the national quitline number. Few participants saw or recalled the FDA source. CONCLUSIONS Engagement text for smoking cessation on constituent communication campaign messages significantly increases recall of the quitline, an important resource for smokers.
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Affiliation(s)
- Kristen L Jarman
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Sarah D Kowitt
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Tara L Queen
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Leah M Ranney
- Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - KyungSu Kim
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Ellen E Jones
- Department of Maternal and Child Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Emily Donovan
- Department of Health Behavior, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Adam O Goldstein
- Director of Departmental Advancement, Department of Family Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
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Jarman KL, Kowitt SD, Cornacchione Ross J, Goldstein AO. Are Some of the Cigar Warnings Mandated in the U.S. More Believable Than Others? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14111370. [PMID: 29125536 PMCID: PMC5708009 DOI: 10.3390/ijerph14111370] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 10/24/2017] [Accepted: 11/02/2017] [Indexed: 01/08/2023]
Abstract
Background: Text warnings are mandated on cigars sold in the United States (U.S.), however little published research has examined effectiveness of cigar warnings. This is the first study examining the believability of cigar warnings among adults in the U.S. Methods: Adults in the U.S. (n = 5014) were randomized in a phone survey to receive one of three cigar-specific mandated warning messages ("Cigar smoking can cause cancers of the mouth and throat, even if you do not inhale", "Cigar smoking can cause lung cancer and heart disease", and "Cigars are not a safe alternative to cigarettes") with one of four warning sources (no source, Surgeon General, CDC (Centers for Disease Control and Prevention), FDA (Food and Drug Administration)). Results: Most adults found the cigar warnings very believable (66.9%). Weighted logistic regression results indicate that the message "Cigar smoking can cause lung cancer and heart disease" was associated with higher odds of being very believable (AOR: 2.05, 95% CI: 1.55, 2.70) and the message "Cigars are not a safe alternative to cigarettes" was associated with lower odds of being very believable (AOR: 0.71, 95% CI: 0.55, 0.92) compared to the message "Cigar smoking can cause cancers of the mouth and throat, even if you do not inhale". Warning source had no impact on believability. Conclusions: We tested three of the currently mandated cigar warnings in the U.S. and found significant differences in believability between them. Further research on cigar warnings may improve communication to the public on cigar health risks, ultimately preventing uptake of cigars and promoting cessation among cigar users.
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Affiliation(s)
- Kristen L Jarman
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27599, USA.
| | - Sarah D Kowitt
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC 27599, USA.
| | - Jennifer Cornacchione Ross
- Department of Social Sciences & Health Policy, Wake Forest School of Medicine, Winston Salem, NC 27157, USA.
| | - Adam O Goldstein
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27599, USA.
- Department of Family Medicine, University of North Carolina, Chapel Hill, NC 27599, USA.
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