Tobacco Brands Research Articles

Estimating the weight of consumed tobacco product waste in various Indian states: a novel method to assess the potential burden of tobacco product waste

IntroductionThe direct morbidity and mortality caused by tobacco are well documented, but such products also contribute to a range of environmental pollutants resulting from tobacco product waste. No previous studies...

Widening the price gap: the effect of the Netherlands' 2020 tax increase on tobacco prices.

The public health impact of a tobacco tax increase depends on the extent to which the industry passes the increase onto consumers, also known as tax-pass through. In 2020, the Netherlands announced tax increases aimed to increase the retail price by €1 per 20 factory-made cigarettes and €2.50 per 50 grams of roll-your-own tobacco. This study examines the pass-through rate after the tax increase, and whether this differed by type of tobacco and brand segment. Self-reported prices of 117 tobacco brand varieties (cigarettes=72, roll-your-own=45) pre- and post-tax increase were extracted from the 2020 International Tobacco Control (ITC) Netherlands Surveys (n=2959 respondents). We calculated the tax pass-through rate per variant, examining differences between type of tobacco and brand segments. On average, cigarette prices increased by €1.12 (SD=0.49) (112% of €1) and roll-your-own prices by €2.53 (SD=0.60) (101% of €2.50). Evidence of differential shifting across segments was found, with evidence of overshifting in non-discount varieties. The average price of discount varieties increased with €0.20 less than non-discount varieties. Similarly, the net-of-tax price decreased in discount varieties (cigarettes=-€0.02; roll-your-own=-€0.05), but increased in non-discount varieties (cigarettes= +€0.14; roll-your-own= +€0.20). Despite the large tax increase, the industry increased prices in line or above the required level. Through differential shifting, the price gap between discount and non-discount varieties has widened, which may reduce the public health impact of the tax increase. Measures aimed at reducing price variability should be strengthened in taxation policy, such as the European Tobacco Tax Directive. We found that the industry used differential shifting after a significant tobacco tax increase in the Netherlands. Prices increased more than required in higher-priced products, but not in lower-priced products. This pattern was found both for factory-made cigarettes and roll-your-own tobacco. Through differential shifting, the industry undermines the potential public health impact of tobacco tax increases, by offering a relatively cheaper alternative, which discourages people to quit or reduce consumption. The revision of the European Tobacco Tax Directive (TTD) provides an opportunity to address the widening price gap - both between and within product segments - across the European Union.

Opportunities for plain packaging of tobacco products in the Philippines: results of a nationwide online survey.

This study aimed to contribute to local research evidence to promote the implementation of plain packaging of tobacco products in the Philippines. The study aimed to assess Filipinos' perception of the effectiveness of plain packaging and their readiness by assessing the potential impact of plain packaging. We conducted a nationwide geographically representative online panel survey with a sample size of 2,000 Filipinos. The survey recruited respondents 18-65 years old and residing in the Philippines, with 500 respondents each from the National Capital Region, Luzon, Visayas, and Mindanao. We showed respondents six different mock-ups of cigarette packs in plain packaging, with two sizes of graphic health warnings (50 and 75%) and three plain packaging colors (black, white, and Pantone 448C). Using five-point Likert scales, participants rated their agreement with 18 items assessing readiness and rationales for plain packaging and 54 items related to pack design (9 items for 6 pack designs). The study showed that Filipinos recognize the value of adopting plain packaging with larger graphic health warning labels on tobacco products in the Philippines. Both non-smokers and smokers agreed that plain packaging has the potential to reduce the attractiveness and appeal of packs, prevent advertisement and promotion of tobacco products, reduce the ability of tobacco products to mislead consumers, increase the noticeability and effectiveness of the pictorial health warnings, increase recall of the pictorial health warnings, affect consumer perceptions of the attractiveness of the tobacco products and their relative safety, reduce youth experimentation with the use of tobacco products, prevent the use of tobacco brand variants as a promotional tool, prevent branding targeted toward youth, promote quitting among current users, and to more clearly inform consumers about the harmful effects of tobacco use. We recommend that policymakers pursue plain packaging as legislation or as part of a reform of the Philippines' graphic health warnings law. The law should target tobacco products sold in the Philippines.

A Tobacco Brand Recognition Method Based on HOG and SVM

The appearance inspection system cannot automatically switch the brand, and a person needs to log into the system and manually switch the inspection brand in the process of production and brand change. To address this problem, a deep learning-based automatic cigarette brand recognition method is developed and validated. Experiments show that: the system can automatically detect the production brand, effectively save the time to change the brand, and has important reference significance for the application in the field of brand identification and automatic switching detection of the brand.

Technical note: Application of Handheld X-ray fluorescence spectrometers in forensic analysis of cigarette ash

Cigarettes are part of a collection of objects found everywhere and smoked by a large part of the population. Cigarette butts can be an essential piece of evidence in identifying a certain suspect/witness, as they can suggest the positive identification or exclusion of one or more brands by comparison or even DNA analysis. The main objective of this study is to test the capability of Handheld X-ray fluorescence spectrometer (HHXRF) to analyze the elemental concentration of individual cigarette ash of several tobacco brands and investigate if it is further possible to discriminate the different brands based on their ash’s elemental concentration. This study reveals the capability of HHXRF to discriminate tobacco brands based on their ashes' elemental concentration, with the great advantage of the analyses being non-destructive and can be carried out on a small sample. In addition, this equipment can measure the ash's elemental concentrations on-site, allowing for less contamination and sample loss.

Waterpipe Tobacco Brands and Flavors Sold Online in the USA

Introduction Flavor additives are commonly used in combustible tobacco products to mask harshness and increase appeal. However, research on the availability of flavored waterpipe tobacco (WT) is lacking, yet is important to support implementation of policies. Methods We completed a comprehensive online search in 2020 to identify WT brands and flavors sold online in the USA. We conducted a descriptive content analysis categorizing flavors as explicit (i.e., clear taste/flavor) or concept (i.e., no clear taste/flavor); and coded for 23 flavor descriptors (e.g., fruit, mint/menthol, tobacco). Flavor names were double-coded and discrepancies were resolved by a third coder. Results We identified 66 WT brands with 118 product lines (i.e., sub-brands). We found 2953 flavors, including 1871 unique flavors. Brands averaged 45 flavors (range: 1–183). Almost three quarters (73.5%, n = 2171) used explicit flavor names and 26.5% (n = 782) used concept flavor names. Concept flavors varied widely, and included names such as 1001 Nights and California Dream. The most common flavor descriptors were fruit (54.1%) and mint/menthol (12.5%). Tobacco was rarely (0.2%) used as a flavor descriptor. Flavor descriptors also included location (10.7%), color (11.1%), candy (6.3%), cool/ice (5.3%), and alcohol (5.5%). Conclusions WT is available in 1871 unique flavors, likely contributing to product appeal and use. Like other tobacco products, fruit and mint/menthol are common flavors. Given the significant health consequences associated with WT smoking and the role of flavors in product use, regulatory action specifically targeting WT flavors is urgently needed.

Exposure to pro-tobacco and anti-tobacco media messages and events and smoking behaviour among adolescents in Gambia

BackgroundDespite the widespread prevalence of adolescent smoking in Gambia, a West African country, there is limited research exploring the relationships between exposure to pro-tobacco and anti-tobacco media messages and events and smoking behaviour among young people. This study investigates the interplay of these exposures and smoking behaviour among 11-17-year-old adolescents in Gambia.MethodsSecondary data analysis was conducted using the 2017 Gambia Global Youth and Tobacco Survey (GYTS), which included a total of 9,127 respondents. Descriptive and inferential analyses, including proportions, Pearson’s chi-squared tests, and multivariable logistic regression models, were employed to estimate adjusted odds ratios (aOR) with 95% confidence intervals (CI).ResultsThe final model revealed significant associations between exposure to anti-tobacco media messages and events and smoking behaviour. Adolescents exposed to anti-tobacco media messages had a 29% increased odds of smoking (aOR 1.29,CI = 1.08,1.53) compared to those unexposed, while exposure to anti-tobacco media events showed a 31% increased odds (aOR 1.31,CI = 1.09,1.59) compared to those unexposed. Exposure to pro-tobacco messages, such as witnessing tobacco use on TV (aOR 1.41, CI = 1.17,1.69) and owning objects with tobacco brand logos (aOR 1.49,CI = 1.19,1.86), was associated with higher odds of smoking. Covariates, including sex, age, and exposure to smoking behaviour by significant others, also demonstrated associations with smoking behaviour. Notably, male respondents showed significantly higher odds of smoking (aOR = 4.01,CI = 3.28,4.89) compared to females. Respondents aged 15 years and older had increased odds of smoking (aOR = 1.47,CI = 1.22,1.76) compared to those below 15 years old. Those whose fathers smoke displayed higher odds of smoking (aOR = 1.35, CI = 1.04,1.76) compared to individuals with non-smoking parents. Additionally, those whose closest friends smoke showed remarkably higher odds of smoking (aOR = 2.87,CI = 2.37, 3.48) compared to those without such influence.ConclusionThis study underscores the significant impact of exposure to both anti-tobacco and pro-tobacco media messages and events on smoking behaviour among adolescents in Gambia. However, pro-tobacco messages had a greater influence on smoking prevalence than anti-tobacco messages and events. Understanding these associations is crucial for devising effective public health interventions aimed at reducing tobacco use in this population.

Assessment of compliance to packaging laws in Pakistan by local and international tobacco manufacturing companies.

Tobacco control law is one of the most effective means of controlling the widespread use of tobacco. However, enforcement of this law in Pakistan is weak. To analyse compliance to cigarette packaging laws by tobacco brands in Pakistan. This cross-sectional study was conducted in August and September 2022. We collected data on tobacco packaging of 100 cigarette brands from 24 outlets selling cigarettes in different parts of Karachi, Pakistan. To assess compliance, we scored the products on a scale of 0-5, based on regulations issued by the Ministry of National Health Services, Regulations and Coordinations. Fifty-five of the 100 assessed brands were manufactured locally and 45 were imported. Only 28% of the brands fully complied to the packaging law. Although 54.5% of the brands had a 4/5 score for the presence of pictorial warnings on the packaging, the sizes of pictorial warnings did not cover up to 60.0% of the total package area in most cases. More than 85.0% of the brands severely lacked the placement of a small health warning on the side of the box, and 5 products did not have this warning at all. Adherence to tobacco packaging law in Pakistan is poor, as majority of the brands lacked at least one component of the regulations. Pakistani authorities need to strengthen monitoring and enforcement of the law to ensure compliance by tobacco manufacturing companies.

Mono and polycyclic aromatic hydrocarbons in waterpipe wastewater: Level and ecotoxicological risk assessment

Increasing of tobacco consumption around the world has led to the production of a large volume of waterpipe wastewater that enter the environment (e.g., coastal areas)and threaten aquatic creatures. However, until now, no research has been carried out on the amounts of monocyclic and polycyclic aromatic hydrocarbons (PAHs) in hookah wastewater. In the current study, the levels of PAHs and BTEX compounds in waterpipe wastewater resulting from the use of different tobacco brands were determined and their eco-toxicological effects were also evaluated. The mean levels of ƩPAHs in waterpipe wastewater of Al Tawareg, Al-Fakher, Nakhla, Tangiers and traditional tobacco brands samples were 3.48 ± 1.65, 3.33 ± 1.52, 3.08 ± 1.25, 2.41 ± 0.87 and 0.70 ± 0.13 μg/L, respectively. The mean levels of ƩBTEX in waterpipe wastewater of Al Tawareg, Al-Fakher, Nakhla, Tangiers and traditional tobacco brands samples were also 2.53 ± 0.61, 2.65 ± 0.78, 2.51 ± 0.72, 2.35 ± 0.56, and 0.78 ± 0.12 μg/L, respectively. The maximum level of PAHs and BTEX compounds in all brands/flavors samples were for naphthalene (Naph) and toluene, respectively. The concentrations of some PAHs (fluoranthene (Flrt), anthracene (Ant), benzo(b)fluoranthene (BbF), benzo(b)fluoranthene (BkF), benzo (g,h,i)perylene (BghiP) and dibenzo (a, h) anthracene (DahA)) and BTEX compounds (benzene) in the waterpipe wastewater samples were more than recommended guidelines and standards by the international reputable organizations such as World Health Organization (WHO) for water quality. Waterpipe wastewater can be introduced as an important origin for the release of these dangerous contaminants into the environmental matrixes. Therefore, more stringent regulations should be considered for the safe disposal of such hazardous wastes including waterpipe wastewater.

Compliance With US Federal Regulations on Waterpipe Tobacco Warnings on Packaging

This cohort study reports the rate and degree of compliance with the Food and Drug Administration–mandated warning labels among waterpipe tobacco brands and products.

Heated tobacco products and cigarette marketing in nightclubs in Gdansk, Poland: A mixed-methods analysis.

Although advertising and promotion of tobacco products in Poland are prohibited, tobacco companies exploit legal loopholes and insufficient enforcement of the laws to conduct their marketing. To reach young adults, advertisements are placed in entertainment and social venues. This aspect of tobacco product marketing in Poland remains under-researched. The main aim of this study was to investigate the occurrence and characteristics of advertising and promotion of tobacco products in nightclubs in Gdansk, a large city in northern Poland. We conducted a single-center observational study of nightclubs in Gdansk, between July and October 2022. Two independent observers visited 30 nightclubs and collected information using pre-prepared research form. The occurrences of tobacco branded bar accessories, logo signs, package displays and other forms of advertising and promotion were recorded. Where possible, photographs of visible marketing displays were taken. Advertising of tobacco products was present in 2/3 of the nightclubs observed. The most commonly advertised product category were heated tobacco products. Tobacco brand representatives promoted and offered consumers free tobacco product samples. Multi-level marketing activities were observed, including tobacco branded bar accessories, prominent sale points and tobacco brand logo signs. The majority of nightclubs observed in Gdansk advertise and promote tobacco products. The ban on tobacco advertising and promotion is being violated in nightclubs, where the most commonly advertised products are heated tobacco products. The authorities should take steps to extend the bans to cover private promotion and enforce the law to protect high-risk individuals from smoking initiation and relapse.

The Impact of Multi-Tiered Specific Excise Tax Systems on the Creation of New Tobacco Brands in Indonesia: Public Health Implications

The Impact of Multi-Tiered Specific Excise Tax Systems on the Creation of New Tobacco Brands in Indonesia: Public Health Implications

A nitrogen-doped carbon nanosheet/poly(amidoamine) dendrimer-based electrochemical sensor for nicotine in flavored hookah pipe tobacco.

Towards the nicotine addiction challenge in the smoking of hookah pipe products, we hereby present the development of an electrochemical sensor for nicotine detection. A nitrogen-doped carbon nanosheet (N-CNS)/poly(amidoamine) dendrimer (PAMAM) nanocomposite-modified electrode was prepared as a sensor for the detection of nicotine in analytical and real samples. The N-CNSs were prepared by a hydrothermal method and dropcast on a glassy carbon electrode followed by electro-deposition of the PAMAM dendrimer to form the sensor (GCE/N-CNSs/PAMAM). The N-CNSs were characterized with electron microscopy, Raman spectroscopy and FTIR. The sensor was characterized with voltammetry and electrochemical impedance spectroscopy. The N-CNS/PAMAM enhanced the electrochemical performance of the electrode towards the oxidation of nicotine. The sensor achieved a detection limit of 0.05 μM in a linear concentration range of 1.93-61.64 μM nicotine standard samples. The sensor showed good reproducibility, repeatability, and selectivity. The sensor was successful in selectively detecting nicotine in two local brands of hookah pipe tobacco with a 113-121 percent recovery. Nicotine, up to a concentration of 0.35-0.39 mg g-1, was found in the sampled hookah pipe tobacco products suggesting possible harm to human health.

Should Tobacco-Related Marketing on Social Media Have Stronger Restrictions? Commentary

Background: Tobacco-related promotional content on social media often features young-looking influencers, models, or brand ambassadors who are appealing to youth; their posts often have inconsistent disclosures of partnerships with tobacco brands and lack age-restrictions prohibiting access to users under 18 or 21 years of age. These examples demonstrate violations of the U.S. Federal Food and Drug Administration (FDA) marketing restrictions. Methods: Marketing granted orders issued by the FDA to RJ Reynolds, Logic Technology, NJOY and Phillip Morris as part of the Premarket Tobacco Product Applications (PMTA) review process were qualitatively analyzed. Marketing practices that the tobacco companies intended to adhere to (e.g., refrain from using young-looking influencers in marketing materials) were documented. Perceived age of 55 micro-influencers who promote e-cigarette products on Instagram were assessed by 15 undergraduate student raters. Results: Despite the existing regulations of tobacco-related online marketing, the use of models or influencers and overall social media marketing is not prohibited, which leaves room for potential use of loopholes. The tobacco companies that were issued marketing granted orders set different age limits for the models to be considered young-looking and not to be used in marketing materials. The perceived age of the 55 influencers assessed by the raters was between 21-30, which is below the age limit proposed in several PMTA applications. Conclusion: Tobacco product online marketing, especially on social media, is underregulated. Strengthening tobacco marketing regulations, along with partnering of policymakers with social media platforms on establishing and maintaining effective tobacco-restriction policies, could help reduce proliferation of youth-appealing marketing of tobacco products.

New Zealand adolescents’ responses to plain packaging and new pictorial warning labels: Repeat cross-sectional survey analysis

ObjectiveThis article aims to examine the impact on adolescents of New Zealand’s 2018 legislation introducing plain (standardised) packaging and enhanced pictorial warning labels (PWLs). MethodsData came from Year 10 (14–15 years old) students in the 2016 (2,884 participants) and 2018 (2,689 participants) Youth Insights Surveys conducted 2 years before and immediately after legislation implementation. We used binary and ordinal logistic regression to investigate changes in brand awareness and preference, brand and pack appeal, and PWL salience and impact. ResultsThe proportion of all participants, and ever, ex/experimental and current smokers who could name one or five tobacco product brands decreased in 2018. There was a modest and nonstatistically significant decrease in the proportion of current smokers citing brand name and image, and a larger decrease in the proportion stating perceived harm to health, influenced preferred brand choice. Having a preferred brand among current smokers and pack appeal, and PWL salience and impact among ex/experimental and current smokers were largely unchanged. ConclusionsWe found preliminary evidence that plain packaging and enhanced PWLs reduced tobacco brand awareness and salience, and misperceptions about tobacco brand harmfulness. Data collection occurred shortly after implementation. Additional studies are required to assess longer term impacts of these interventions. Public health implicationsThe findings complement existing evidence documenting the impact of plain packaging and PWLs on adolescents. Given limitations due to the proximity of the 2018 survey to legislation implementation, further studies with longer follow-up are required.

Changes in tobacco imagery and smokers' depiction in Spanish top-grossing films before and after the implementation of a comprehensive tobacco control policy in Spain.

As more restrictions on tobacco marketing communication are implemented, tobacco marketing has persisted through smoking in films. Our aims were to assess changes in tobacco imagery exposure in Spanish top-grossing films before and after the banning of tobacco advertising in Spain, and to determine whether the depiction of smoking characters has changed over the years. A repeated cross-sectional study measured the tobacco content in the 10 Spanish top-grossing films in 2005, 2010 and 2015 (n=30) before and after a complete tobacco advertising ban. We conducted a descriptive and regression analysis of changes in tobacco impressions by year. The 30 films contained 1378 tobacco occurrences (90.2% positive for tobacco) with a median length of eight seconds onscreen. Total tobacco occurrences deemed positive for tobacco interests significantly increased in 2010 and 2015 compared to 2005. However, we observed decreased odds of tobacco brands appearances (OR=0.25; p<0.001) in 2010 and of implied tobacco use (OR=0.44; p=0.002), and tobacco brands appearances (OR=0.36; p<0.001) in 2015 compared to 2005. There was a change of pattern in the type of role smokers played from a leading role to a supporting one (p<0.001). The population reach of positive for tobacco occurrence in Spanish top-grossing films decreased from 15.9 (95% CI: 15.86-15.86) per 1000 spectators in 2005 to 0.8 (95% CI: 0.82-0.82) in 2015. The implementation of a ban on complete tobacco product advertising was followed by a decrease in tobacco incidents across top-grossing Spanish films. Yet, exposure to smoking in films is still unacceptably high.

Post-consumption waterpipe tobacco waste as an unrecognized source of toxic metal(loid)s leachates into aquatic environments

Waterpipe is a common form of tobacco smoking, and recently, its use has been increasing globally. Therefore, concern arises regarding the large quantity of post-consumption waterpipe tobacco waste produced and released into the environment and which can contain high levels of dangerous pollutants such as toxic meta(loid)s. This study reports the concentrations of meta(loid)s in waste from fruit-flavoured and traditional tobacco smoking as well as the release rate of these pollutants from waterpipe tobacco waste into three types of water. These include distilled water, tap water, and seawater and contact times ranging from 15 min to 70 days. The mean concentration levels of Ʃmetal(loid)s in waste samples of Al-mahmoud, Al-Fakher, Mazaya, Al-Ayan brands and traditional tobacco brands were 212 ± 92.8, 198 ± 94.4, 197 ± 75.7, 214 ± 85.8 and 40.6 ± 16.1 μg/g, respectively. The concentration levels of Ʃmetal(loid)s in fruit-flavoured tobacco samples were significantly higher than for traditional tobacco samples (p < 0.05). It was found that waterpipe tobacco wastes leached toxic metal(loid)s into different water samples with similar trends. In addition distribution coefficients showed that most metal(loid)s are highly likely to enter the liquid phase. The concentration levels of these pollutants (except Ni and As) in deionized water and tap water exceeded the surface fresh water standards for sustaining aquatic life during long contact time (up to 70 days). In seawater, concentration levels of Cu and Zn exceeded the recommended standards for maintaining aquatic life in the sea. Therefore, due to the possibility of contamination by soluble metal(loid)s through disposal of waterpipe tobacco waste in wastewater, there is concern that these toxic chemicals might enter the human food chain. Appropriate regulatory measures for disposal of waterpipe tobacco waste are necessary to prevent environmental pollution due to discarded wastes into aquatic ecosystems.

Proportions of and trends in exposure to pro-tobacco and anti-tobacco advertisements among young adolescents aged 12–16 years in 142 countries and territories, 1999–2018: an analysis of repeated cross-sectional surveys

The proportions and trends in exposure to pro-tobacco and anti-tobacco advertisements among young people remain unknown globally. We determined recent (2010-18) proportions of exposure to pro-tobacco and anti-tobacco advertisements among young adolescents and their secular trends from 1999 to 2018. In this analysis of repeated cross-sectional surveys, we used the most recent data from 142 countries and territories (hereafter referred to as countries) collected between Jan 1, 2010, and Dec 31, 2018, comprising 710 191 participants, to assess the proportions of exposure to pro-tobacco and anti-tobacco advertisements among young adolescents aged 12-16 years. Data from 120 countries that had performed two or more Global Youth Tobacco Surveys between Jan 1, 1999, and Dec 31, 2018, comprising 1 482 031 participants, were used to assess trends in the proportions of exposure to pro-tobacco and anti-tobacco advertisements over time. A χ2 test analysis was used for proportion comparisons between subgroups. Exposure to pro-tobacco and anti-tobacco advertisements were calculated as proportions using sampling weights, strata, and primary sampling units. The most recent global proportion of past 30-day exposure to tobacco advertisements among young adolescents was 433 585 (64·6%) of 710 191 (95% CI 63·5-65·7; all final percentages were weighted) for messages on electronic media, 206 766 (33·1%) of 710 191 (31·9-34·4) for exposure at the point of sale, and 63 385 (10·2%) of 710 191 (9·7-10·6) for owning something with a tobacco brand logo. The most recent global proportion of exposure to anti-tobacco advertisements was 431 862 (63·6%) of 710 191 (62·3-64·9) for messages on electronic media and 227 658 (34·1%) of 710 191 (32·8-35·3) for exposure to gathering activities. The majority of included countries showed a decreasing trend in exposure to tobacco advertisements (111 [93%] of 120) and anti-tobacco advertisements (110 [92%] of 120) between 1999 and 2018. Among young adolescents, exposure to tobacco advertisements remains high, and exposure to anti-tobacco advertisements is not high enough. The proportion of young adolescents exposed to pro-tobacco and anti-tobacco advertisements had decreased over time in the majority of included countries. These findings underscore the importance of strict implementation of regulation on tobacco control including strengthening anti-tobacco marketing and prohibiting tobacco marketing. Youth Team of Humanistic and Social Science of Shandong University. For the Chinese translation of the abstract see Supplementary Materials section.

Assessment of heavy metal levels in roll-your-own cigarette and water pipe tobacco blends

The increased consumption of roll-your-own (RYO) cigarettes and water pipe (hookah), both globally and in Bulgaria, necessitated the current investigation aimed at the assessment of heavy metal levels in the tobacco blends used in those products. The concentrations of Mn, Zn, Cu, Cd, Pb, and Ni were determined by AAS in five brands of RYO tobacco (R1-R5) and seven brands of water pipe tobacco (W1- W7), all distributed on Bulgarian market. The average heavy metal contents (mg/kg) in the two types of tobacco blends, RYO and water pipe, respectively, were as follows: Mn - 214.20 and 37.89; Zn - 31.90 and 134.87; Cu - 12.06 and 10.07; Cd - 0.80 and 1.33; Pb - 1.60 and 3.57; Ni - 1.36 and 0.80. RYO cigarette tobaccos contained higher concentration of Mn, Cu and Ni, while water pipe tobaccos - Zn, Cd and Pb. Strong correlations were found between Cu and Zn (r=0.81), Cu and Cd (r=0.90) in RYO tobacco blends, and between Cu and Zn (r=0.86) - in water pipe blends, respectively. The results from the study give reason to recommend that this information be provided to the consumers, who consider the regarded tobacco products as a safer alternative to conventional cigarettes.

Longitudinal transitions in tobacco use in youth and young adults: A latent transition analysis of the population assessment of tobacco and health study from Wave 1 to 5

BackgroundTobacco use by youth and young adults can lead to significant long-term health problems. We aim to understand transitions in tobacco use patterns among these groups and the factors that affect transition patterns. MethodsUsing the five waves of data from the nationally representative Population Assessment of Tobacco and Health (PATH) Study (2013–2019), we conducted latent class analysis and latent transition analysis to understand tobacco use classes and the longitudinal transitions between classes. We also adjusted for covariates, including demographics, individual behaviors, household environment, and psychosocial factors, to capture their effects on class transition probabilities. ResultsThree tobacco use behaviors were identified: non-current user (C1), moderate e-cigarette user (C2), and poly-tobacco user (C3). At baseline (Wave 1), 94.4% of participants were classified as C1, 3.2% as C2, and 2.4% as C3, and the distribution shifted towards C2 and C3 over time. Progression to the next class represented the most common transitions (14.1% C2 to C3, 10.7% C1 to C2), while the direct progression from C1 to C3 was rare (0.6%). Being male, White, adult, living in smoking-allowed households, past-year alcohol use, drug use, internalizing problems, and social media follower of tobacco brands were associated with a faster progression to poly-tobacco use. ConclusionsThe transition patterns implied that e-cigarette use might be an intermediate progression from non-current use into poly-tobacco use. Individual behaviors, household environment, and psychosocial factors are associated with elevated risks of progression. The findings may inform tobacco prevention and cessation policies among youth and young adults.