'Roll-your-own' cigarette smoking in South Africa between 2007 and 2010

Microbiome status of unregulated raw tobacco blends for hand-rolling cigarettes (RYO tobaccos)

The research was conducted on 18 samples of RYO tobacco. The density (CFU/g a.d.s.) of three heterotrophic groups of microorganisms and some physical-chemical indicators were determined. The analyses were performed according to classic methods. Quantitative and qualitative changes at the microbiome as a result of disruption of homeostasis in microbial communities and development of secondary succession in the direction of intensive mineralization processes were found. Statistically significant correlation dependences with the physical-chemical parameters were registered. In addition to a potential risk in term of sanitary-hygiene and health aspects, the changes also have a negative impact on the consumer qualities of tobacco blends.

Reasons for Using Roll-Your-Own Tobacco and Perceptions of Health-Promoting Pack Inserts: A Focus Group Study with Roll-Your-Own Tobacco Smokers in Scotland

INTRODUCTION

Use of roll-your-own (RYO) tobacco is increasing in most regions, but few qualitative studies have explored why RYO smokers use this product, and no study has considered their views of health-promoting pack inserts.

METHODS

Eight focus groups were conducted with 18-35-year-old RYO smokers (n = 50) in Greater Glasgow (Scotland) in February-March 2020 to explore reasons for using RYO and perceptions of health-promoting inserts. Participants were shown four inserts adapted from those required in cigarette packs in Canada, with all encouraging quitting, and two RYO-specific inserts explaining that RYO is not less harmful than cigarettes.

RESULTS

Lower price, better taste, the pleasure of rolling and ability to customize roll-ups, and the belief that RYO was less harmful than cigarettes were drivers for use. There were mixed perceptions of the extent to which inserts would capture attention if included in RYO packs. The positive messaging used on the Canadian inserts was considered motivational and inspirational, and contrasted with the on-pack warnings. The messaging on the RYO inserts, in comparison, was viewed unfavorably and generally dismissed. Participants, most of whom were not interested in quitting, did not feel that inserts would lead them to change their smoking behavior. However, some felt that the Canadian inserts could be helpful for those thinking about quitting and young people contemplating smoking.

CONCLUSIONS

Inserts with positive messaging about quitting, rather than messaging explicating the harms of RYO, were preferred by RYO smokers. What, if any, RYO-specific messaging resonates with RYO smokers merits further attention.

IMPLICATIONS

Aside from price, taste, and the pleasure associated with rolling and ability to individualize roll-ups, the erroneous belief that RYO is less harmful than cigarettes was a key reason for use. While inserts with positive messaging about quitting, as used on the Canadian inserts, were viewed as potentially helpful, inserts that challenged the idea that RYO was not less harmful than cigarettes were generally dismissed. Research is needed to understand what types of RYO-specific messaging could most effectively be used on inserts, or indeed in other media, to challenge the misperceptions that many RYO smokers hold.

Prevalence and correlates of roll-your-own cigarette smoking among South African adults during 2010–2011 and 2017–2018

INTRODUCTION

The increasing use of roll-your own (RYO) cigarettes has been documented globally, but there are no recent data from South Africa, particularly among youths and low-income groups. We assessed changes in prevalence and correlates of RYO smoking among South African adults during 2010–2011 and 2017–2018, and explored expenditure differences between daily smokers of RYO and manufactured cigarettes.

METHODS

Nationally representative data of South Africans aged ≥16 years used in this study were from the South African Social Attitudes Survey (SASAS) for 2010–2011 (n=6116), and 2017–2018 (n=5799). Current RYO cigarette use included daily and non-daily use. Annual expenditures were estimated based on typical usage patterns for daily users. Descriptive and multivariable analyses were performed using Stata Version 15 with the level of statistical significance set at p<0.05.

RESULTS

The prevalence of ever RYO cigarette use increased from 6.5% (95% CI: 5.6–7.5) during 2010–2011, to 8.5% (95% CI: 7.0–10.0) during 2017–2018 (p=0.026). Current RYO cigarette use prevalence however remained largely unchanged when we compared 2010–2011 to 2017–2018 (5.2% vs 6.3%, p=0.544). During 2017–2018, current RYO cigarette use prevalence was highest among men (11.6%), those who self-identified as Coloreds (11.1%), people aged 25–34 years (7.8%), those with no schooling (7.5%), and those unemployed (9.8%). Annual expenditures associated with typical patterns of daily RYO cigarette smoking were substantially less than for smoking of manufactured cigarettes.

CONCLUSIONS

The prevalence of ever RYO cigarette use increased between 2010–2011 and 2017–2018. Current RYO cigarette use during 2017–2018 was more prevalent among Coloreds, Black Africans, youths, those with lower education, and the unemployed. This study’s findings highlight the need to harmonize taxation of cigarettes and RYO cigarettes, and to intensify implementation of evidence-based tobacco control and prevention interventions in South Africa.

The Impact of Including Cessation Resource Information on Health Warnings on Standardized Tobacco Packaging on Awareness and Use: A Longitudinal Online Survey in the United Kingdom

INTRODUCTION

Since May 2017, all cigarettes and roll-your-own (RYO) tobacco in the United Kingdom must be sold in standardized packs with pictorial warnings displaying, for the first time, a stop-smoking website.

AIMS AND METHODS

Data come from three waves of a longitudinal online survey with smokers and ex-smokers conducted pre- and post-standardized packaging, with Wave 1 (W1) in April-May 2016, Wave 2 (W2) in September-November 2017, and Wave 3 (W3) in May-July 2019. Only smokers are included in the analysis: W1 (N = 6233), W2 (N = 3629), and W3 (N = 2412). We explored any change in citing warnings on packs as a source of information about a stop-smoking website, and whether citing warnings as a source was associated with use of a stop-smoking website. As the warnings, and therefore the stop-smoking website, are larger on RYO packs than on cigarette packs due to the larger pack size, we explored differences in awareness of a stop-smoking website among exclusive cigarette smokers (W1 = 3142, W2 = 1884, W3 = 1247) and exclusive RYO smokers (W1 = 2046, W2 = 1119, W3 = 814).

RESULTS

Among smokers recalling seeing information about a stop-smoking website, citing warnings as a source increased between waves (W1 = 14.0%, W2 = 24.2%, W3 = 25.1%) and was associated with having visited a stop-smoking website (odds ratio = 11.81, 95% confidence interval 8.47-16.46). Citing warnings as a source of a stop-smoking website increased among exclusive RYO smokers at each wave (W1 = 15.5%, W2 = 26.3%, W3 = 32.1%), while for exclusive cigarette smokers it only increased at W2 (W1 = 10.5%, W2 = 22.4%, W3 = 19.9%).

CONCLUSIONS

Warnings are an important source of cessation resource information. Making this information more prominent may help sustain awareness.

IMPLICATIONS

The findings support the inclusion of a stop-smoking website on warnings as awareness among smokers increased and citing warnings as a source of information about a stop-smoking website was associated with having visited a stop-smoking website. We also explored whether the stop-smoking website on warnings on RYO packs, which is larger than on cigarette packs as a function of the larger size of RYO packs, would have any impact on awareness of this information. That exclusive RYO smokers were more likely than exclusive cigarette smokers to notice a stop-smoking website on warnings suggests that this information should be more prominent.

Maternal Tobacco and Alcohol Use in Relation to Child Malnutrition in Gauteng, South Africa: A Retrospective Analysis

Tobacco and alcohol use among mothers is associated with numerous adverse consequences for affected offspring, including poor growth and development. This study determined the association between maternal tobacco and alcohol use, and malnutrition, among infants aged ≤ 12 months (n = 300), in selected health facilities situated in Gauteng, South Africa. Data on alcohol and tobacco use were collected using a validated questionnaire, in addition to mothers’ socio-demographic characteristics and obstetric history. Stunting (low height/length-for-age), underweight (low weight-for-age) and thinness (low body mass index-for-age) were calculated using z-scores based on the World Health Organization child growth standards. The association of tobacco and alcohol use with stunting, underweight and thinness was analysed using logistic regression analysis. The results showed a mean age of 29 years (24.0; 35.0) for mothers and 7.6 ± 3 months for infants, and over half of the mothers were unemployed (63%). Approximately 18.7% of mothers had used tobacco and 3% had used alcohol during pregnancy. The prevalence of current tobacco and alcohol use among mothers were estimated at 14.3% and 49.7%, respectively, and almost three-quarters (67.3%) of them were still breastfeeding during the study period. Stunting (55%) was the most prevalent malnutrition indicator among infants, while underweight was 41.7%, and thinness was 22%. Current tobacco use was associated with increased odds of being thin [OR = 2.40, 95% CI: 1.09–5.45), and after adjusting for confounders, current alcohol use was associated with the likelihood of being underweight [AOR = 1.96, 95% CI: 1.06–3.63] among infants. Future prospective cohort studies that examine growth patterns among infants who are exposed to maternal tobacco and alcohol use from the intrauterine life to infancy are necessary to inform, partly, the public health programmes, to reduce malnutrition among children.

Potential revenue from taxing e-cigarettes and comparison of annual costs of daily e-cigarette use versus daily cigarette smoking among South African adults

INTRODUCTION

To inform policy making under the proposed The Control of Tobacco and Electronic Delivery Systems Bill, we compared annual costs of using e-cigarettes versus cigarettes, and estimated revenue from e-cigarette taxation.

METHODS

We extracted e-cigarette retail prices from 231 South African e-cigarette vendor websites. We compared annual costs associated with daily cigarette smoking (self-reports from daily smokers in the 2018 South African Social Attitudes Survey, SASAS) versus daily e-cigarette use (based on cumulative costs of consumables plus device costs). We estimated revenue from excise tax if e-cigarettes were taxed at 75% (the rate proposed by the government) and 37.5% (half of the government’s proposal as a hypothetical scenario) of the cigarette excise rate. We applied the different rates to e-cigarette consumption in 2018 SASAS and projected for 2021.

RESULTS

Mean annual cost associated with daily use was ZAR 6693 (US$460.32, based on an exchange rate of about 69 US$ to 1000 ZAR) for manufactured cigarettes; for e-cigarettes, this ranged from ZAR 8574.69/year (with price minimizing strategies) to ZAR 19780.83/year (retail products exclusively). Expected revenue from e-cigarette excise tax at 75% of the cigarette tax rate was up to ZAR 2.20 billion (95% CI: 0.96–3.44). If taxed at 37.5% of the cigarette tax rate – half of the government’s proposed rate – the projected revenue was up to ZAR 1.10 billion (95% CI: 0.48–1.72). Of the projected revenue from e-cigarette excise tax at 75% of the cigarette rate, the portion attributable to hardware (device and batteries) was 61% (ZAR 1.35 billion), while the portion attributable to e-liquid was 39% (ZAR 0.86 billion).

CONCLUSIONS

Calculated daily costs were higher for e-cigarettes than cigarettes. We recommend an e-cigarette excise tax. The government’s proposed tax rate may reduce youth e-cigarette access, while allowing adult smokers wishing to switch exclusively to e-cigarettes to reduce their tobacco-related harm.

Utilisation of smoking cessation aids among South African adult smokers: findings from a national survey of 18 208 South African adults

OBJECTIVE

To examine the use of different cessation aids among current South African smokers who have ever tried to quit smoking.

DESIGN

Cross-sectional design.

SETTING

South Africa has progressively passed several policies over the past few decades to encourage smoking cessation. Data on cessation behaviours are needed to inform policymaking. We investigated utilisation of evidence-based cessation aids and e-cigarettes among current combustible smokers. Current tobacco use, past quit attempts and use of evidence-based cessation aids (counselling, nicotine replacement therapy or prescription medication) were self-reported. Data were weighted and analysed using descriptive and multivariable approaches (p<0.05).

PARTICIPANTS

Online participants were recruited from the national consumer database for News24-South Africa's largest digital publisher. Of the 18 208 participants aged 18 years or older, there were 5657 current smokers of any combustible tobacco product (cigarettes, cigars, pipes or roll-your-own cigarettes), including 4309 who had ever attempted to quit during their lifetime.

RESULTS

Current combustible tobacco smoking prevalence was 22.4% (95% CI: 21.2% to 23.5%), and 98.7% of all current smokers of any combustible tobacco were current cigarette smokers. Awareness of cessation aids was as follows among current combustible tobacco smokers: smoking cessation counselling programmes, 50.8% (95% CI: 48.1% to 53.6%); nicotine replacement therapy, 92.1% (95% CI: 90.5% to 93.6%); prescription cessation medication, 68.2% (95% CI: 65.2% to 70.6%). Awareness of cessation aids was lowest among Black Africans, men, and persons with little or no income. Of all current combustible tobacco smokers, 74.6% (95% CI: 72.2% to 76.7%) had ever attempted to quit and 42.8% (95% CI: 40.0% to 45.4%) of these quit attempters had ever used any cessation aid. Among current combustible smokers who attempted to quit in the past, ever e-cigarette users were more likely than never e-cigarette users to have ever used any cessation aid (50.6% vs 35.9%, p<0.05). Of current combustible smokers intending to quit, 66.7% (95% CI: 64.2% to 68.9%) indicated interest in using a cessation aid for future quitting. By specific aids, 24.7% (95% CI: 21.3% to 28.1%) of those planning to use any cessation aid were interested in getting help from a pharmacist, 44.6% (95% CI: 40.9% to 48.4%) from a doctor, 49.8% (95% CI: 46.0% to 53.6%) from someone who had successfully quit, 30.0% (95% CI: 26.7% to 33.4%) from a family member and 26.5% (95% CI: 23.0% to 30.0%) from web resources.

CONCLUSION

Only two in five past quit attempters had ever used counselling/pharmacotherapy. Any putative benefits of e-cigarettes on cessation may be partly attributable to pharmacotherapy/counselling given concurrent use patterns among past quit attempters using e-cigarettes. Comprehensive tobacco control and prevention strategies can help reduce aggregate tobacco consumption.

Price elasticity of demand for manufactured cigarettes and roll-your-own cigarettes across socioeconomic status groups in Thailand

BACKGROUND

Pricing policies have been proven to be effective in reducing tobacco consumption. However, studies investigating the effectiveness of pricing policies across different types of tobacco products and socioeconomic status (SES) groups are limited, particularly in low-income and middle-income countries.

OBJECTIVE

This study aimed to quantify the price elasticity of demand for different types of cigarettes across different SES groups.

METHODS

This study used data from a nationally representative survey in Thailand conducted in 2017 and included current smokers aged at least 15 years. To quantify the price elasticity of demand for cigarette consumption, a two-part model was employed for five different types of cigarettes: domestic and imported manufactured cigarettes with a low and high price, and roll-your-own cigarettes. Personal income was used to determine SES.

RESULTS

Price elasticity of demand for cigarettes exists for all types of cigarettes. The price elasticity of demand for manufactured and roll-your-own cigarettes was -0.49 (p<0.05) and -0.32 (p<0.05), respectively. People who smoked domestic manufactured cigarettes were more responsive to price change than those who smoked imported manufactured cigarettes. Low-income smokers of manufactured and roll-your-own cigarettes were more responsive to price change than those with high income.

CONCLUSION

Smokers with a low income were more responsive to price change than those with higher income. The effectiveness of pricing policy in reducing demand for manufactured cigarettes was greater in domestic cigarettes than imported ones.

Keeping smoking affordable in higher tax environments via smoking thinner roll-your-own cigarettes: Findings from the International Tobacco Control Four Country Survey 2006-15

BACKGROUND

Roll-Your-Own tobacco (RYO) use is increasingly popular in many countries: it is generally cheaper than factory-made cigarettes (FM), and smokers can further reduce costs by adjusting the amount of tobacco in each cigarette. However, the level of risk of RYO compared with FM cigarettes is similar and does not meaningfully change with cigarette weight. We assessed the weight of tobacco in RYO cigarettes across jurisdictions with differing tobacco taxes/prices and over time.

METHOD

Six waves of the International Tobacco Control 4 Country longitudinal study of smokers and recent ex-smokers, providing 3176 observations from exclusive RYO users covering 2006-15, are used to calculate the weight of tobacco used in RYO cigarettes in the US, Canada, Australia, and the UK. Multilevel regression analyses were used to compare weights across countries, socio-demographic factors, and over time.

RESULTS

Smokers in the UK and Australia, where tobacco is relatively expensive, show higher levels of exclusive RYO use (25.8% and 13.8% respectively) and lower mean weights of tobacco per RYO cigarette (0.51 g(sd 0.32 g) and 0.53 g(0.28 g)), compared with both Canada and especially the US (6.0% and 3.5%, and 0.76 g(0.45 g) and 1.07 g(0.51 g)). Smokers in the UK and Australia also exhibited a statistically significant year-on-year decrease in the mean weight of each RYO cigarette.

CONCLUSIONS

Taxation of RYO should increase considerably in the UK and Australia so that RYO and FM cigarettes are taxed equivalently to reduce RYO attractiveness and inequalities. Other measures to reduce the price differentials, including taxing RYO solely on weight, are also discussed.

Differences in nicotine dependence, smoke exposure and consumer characteristics between smokers of machine-injected roll-your-own cigarettes and factory-made cigarettes

BACKGROUND

Consumption of machine-injected roll-your-own (RYO) filtered cigarettes made from pipe tobacco increased almost 7-fold from 2008 to 2011 in the United States.

METHODS

We used data from the Pennsylvania Adult Smoking Study to compare the differences in sociodemographic, smoking topography, nicotine dependence, and cotinine levels between 280 smokers using factory made (FM) cigarettes and 68 smokers using RYO cigarettes.

RESULTS

RYO smokers were older (41 vs. 37, P = 0.053), had significantly lower levels of income (P < 0.001) and education (P = 0.007), and were less likely to be fully employed (P = 0.009). RYO smokers consumed more cigarettes per day [CPD] (21 vs. 15, P < 0.001), and had a higher mean score on the Fagerström Test for Cigarette/Nicotine Dependence (5.2 vs. 4.1, P < 0.001). The main reasons for choosing RYO cigarettes were the lower cost (68%) and believed they are less harmful (12%). The average cost per pack of FM cigarettes was $5.74 vs. $1.13 for RYO. In multiple regression analyses, RYO smokers had significantly lower cotinine levels across all levels of CPD. Among smokers of king-size cigarettes, mean interpuff interval (P < 0.05) and total smoke duration (P < 0.01) per cigarette was significantly greater in RYO smokers. In laboratory measurements, RYO cigarettes contained more tobacco by weight than FM cigarettes, but weight varied by both tobacco and cigarette tube brands.

CONCLUSIONS

Machine-injected RYO cigarettes made from pipe tobacco are cheaper than FM cigarettes but may have higher abuse liability. Smokers who might otherwise reduce their cigarette consumption or quit altogether may continue to smoke RYO cigarettes due to their affordability.

Qualitative exploration of young adult RYO smokers' practices

BACKGROUND

Although roll-your-own (RYO) tobacco often elicits negative connotations of a lower class product, uptake and use by young adult smokers has grown because RYO is more cost-effective than tailor-made (TM) cigarettes. We explored the practices and beliefs young adults develop to distance themselves from unattractive stereotypes of RYO smokers.

METHODS

We conducted 20 in-depth interviews with New Zealand young adult RYO users aged between 18 and 30 years, and used thematic analysis to interpret the transcripts.

RESULTS

We identified three themes: establishing the superiority of RYO tobacco; creating and enacting usage rituals, and ritual disruption. Participants regarded RYO tobacco as more natural and better-tasting; they used it to control their tobacco use and facilitate interactions with others. Many described rolling rituals where they used specific artefacts and microbehaviours to construct cigarettes they saw as personal and artisanal. Several, though not all, disliked unattractively coloured papers as these disrupted the value their rituals created.

CONCLUSIONS

Young adults imbue RYO tobacco with positive attributes, many of which centre on rolling rituals or draw on widely held misperceptions of RYO tobacco as less harmful. Excise tax increases could counter perceptions of RYO as more cost-effective while mandating that dissuasively coloured paper could disrupt reduced-harm connotations. However, evidence that erroneous harm beliefs are widespread and entrenched may justify restricting or eliminating the key artefact-the product itself.

Cigarette Smoking Trends and Social Disparities Among South African Adults, 2003-2011

INTRODUCTION

Cigarette prices have almost doubled in South Africa within the past decade due to pricing/taxation policies. Little is known about the equity impact of these price increases in concert with other tobacco control policies. This study therefore examined trends in current cigarette smoking overall and by socioeconomic status (SES) in South Africa during 2003-2011.

METHODS

Data were obtained from the 2003 (n = 2,855), 2007 (n = 2,907), and 2011 (n = 3,003) South African Social Attitudes Survey. Educational attainment (> grade 12, grade 12, grade 1-11, or no education) was used as a proxy for SES, and all analyses were restricted to respondents aged ≥25 years. Trends in current cigarette smoking-defined as daily or some days use of cigarettes-during 2003-2011 were assessed with estimates of annual percentage change (APC), while smoking disparities were assessed with relative concentration index (RCI).

RESULTS

Although no significant change was observed in the overall prevalence of current smoking during 2003-2011, declines were observed among those with no education (APC = -8.2; p < .05 for linear trend). However, increased smoking was observed among the most educated women (from 4.0% in 2003 to 13.1% in 2011; p < .05 for linear trend). The RCI by educational status changed significantly during the study period, from 0.80 (2003) to 1.35 (2007) to 1.94 (2011).

CONCLUSIONS

The policy environment in South Africa during 2003-2011 had a significant positive equity impact by SES, even though no aggregate change in smoking prevalence was observed. Intensified implementation of taxation measures as part of a comprehensive tobacco control may further reduce smoking disparities.

Youth Preferences for Roll-Your-Own Versus Factory-Made Cigarettes: Trends and Associations in Repeated National Surveys (2006-2013) and Implications for Policy

INTRODUCTION

We investigated trends in roll-your-own (RYO) and factory-made (FM) cigarette use over time among youth in New Zealand (NZ), a high RYO use country. We also explored factors associated with RYO use.

METHODS

We analyzed data from an annual survey of NZ students (14-15 years old) from 2006-2013. Smokers were asked whether they usually smoked RYO or FM cigarettes, and provided details of their source of supply. We estimated prevalences and developed a binary logistic regression model to explore determinants of RYO use.

RESULTS

Between 6663 (2006) and 3143 (2013) current smokers responded. Each year, around 80% reported usually smoking RYO or FM cigarettes. The proportion reporting usual RYO use was 45% (95% confidence interval [CI] ±3%) in 2006, reducing to 40% (95% CI ±3%) in 2013 (trend test: P < .001). By contrast, the proportions reporting usual FM use increased slightly over time from 36% (95% CI ±3%) in 2006 to 38% (95% CI ±3%) in 2013 (trend test: P < .001). Usual RYO use was more common amongst regular smokers, those who initiated smoking younger, who belonged to low or medium socioeconomic status groups, and whose friends and family both smoked.

CONCLUSIONS

RYO use is very high among NZ youth who smoke. Preference for RYO cigarettes amongst longer-term, regular smokers suggests RYO tobacco supports and maintains youth smoking. There was some initial evidence that a 2010 differential tax increase on RYO tobacco was associated with a shift away from usual RYO use amongst those who sourced tobacco from caregivers or friends. Additional measures such as further differential excise tax increases appear warranted.

Progression of cardiovascular risk factors in black Africans: 3 year follow up of the SABPA cohort study

Recent work identified a high prevalence of modifiable risk factors for cardiovascular disease (CVD) among urban black South Africans. The aim was to track the progression of CVD risk factors in a multi-ethnic sample of South Africans. Participants were 173 black (aged 47.5 ± 7.8 yrs) and 186 white teachers (aged 49.6 ± 9.9 yrs) that were examined at baseline and 3 years follow-up. Blacks demonstrated a substantially higher prevalence of composite CVD burden (defined as history of physician diagnosed heart disease, use of anti-hypertensives, anti-diabetic, or statin medications at either time point) compared to whites (49.1 vs. 32.0%, p = 0.012) respectively. After controlling for baseline, the black participants demonstrated greater increases in 24 h systolic and diastolic blood pressure, total cholesterol, fasting glucose, fibrinogen, D-dimer, and waist circumference in comparison with whites. In summary, an adverse progression of CVD risk factors was observed in the whole sample, although to a larger degree in black participants. Aggressive treatment strategies for controlling risk factors in black Africans are needed to reduce the increasing burden of CVD in South Africa.

Make your own cigarettes: toxicant exposure, smoking topography, and subjective effects

BACKGROUND

Despite considerable use of make your own (MYO) cigarettes worldwide and increasing use in the United States, relatively little is known about how these cigarettes are smoked and the resultant toxicant exposure.

METHODS

In a laboratory study, we compared two types of MYO cigarettes-roll your own (RYO) and personal machine made (PMM)-with factory-made (FM) cigarettes in three groups of smokers who exclusively used RYO (n = 34), PMM (n = 23), or FM (n = 20). Within each group, cigarettes were smoked in three conditions: (i) after confirmed overnight tobacco abstinence; (ii) in an intense smoking paradigm; and (iii) without restrictions. All cigarettes were smoked ad lib through a smoking topography unit.

RESULTS

Plasma nicotine significantly increased after cigarettes in all conditions except PMM in the intense smoking paradigm. Puff volume, puff duration, total puff volume, and puff velocity did not differ between cigarette types but the puffs per cigarette and time to smoke were significantly smaller for RYO compared with PMM and FM. Regardless of the cigarette, participants consumed the first three puffs more vigorously than the last three puffs.

CONCLUSIONS

Despite the belief of many of their consumers, smoking MYO cigarettes is not a safe alternative to FM cigarettes. Like FM, MYO cigarettes expose their users to harmful constituents of tobacco smoke. Despite differences in size and design their puffing profiles are remarkably similar.

IMPACT

These data are relevant to health and regulatory considerations on the MYO cigarettes.

Poly-tobacco use among adults in 44 countries during 2008-2012: evidence for an integrative and comprehensive approach in tobacco control

INTRODUCTION

The concurrent use of multiple tobacco products (i.e., poly-tobacco use) might hinder efforts to reduce overall tobacco use, particularly considering that use of some non-cigarette tobacco products may be popular in some regions due to social, cultural, or economic reasons. This study assessed poly-tobacco use patterns among persons aged ≥15 years old from 44 countries.

METHODS

Data from 44 countries in all six World Health Organization regions were obtained from the 2008 to 2012 Global Adult Tobacco Surveys (n=19 countries), and the Special Eurobarometer 385 (77.1) survey, 2012 (n=25 countries). Correlates of poly-tobacco use were assessed using multivariate logistic regression analyses (p<0.05).

RESULTS

Overall prevalence of poly-tobacco use ranged from 0.8% (Mexico) to 11.9% (Denmark). In 28 countries, 20% or more of current smokers of manufactured cigarettes concurrently used at least one other tobacco product and this proportion was highest in India (66.2%) and lowest in Argentina (4.4%). After adjusting for other factors, the likelihood of being a poly-tobacco user among all respondents was lower among females (aOR=0.09; 95% CI: 0.08-0.11), and among respondents from upper-middle-income (aOR=0.53, 95% CI: 0.43-0.66), and lower-middle-income countries (aOR=0.64; 95% CI: 0.51-0.81) compared to high-income countries. Increased likelihood of poly-tobacco use was observed among respondents from the South-East Asian region compared to those from the European region (aOR=1.58, 95% CI: 1.35-1.85), as well as among respondents aged ≥65 years (aOR=2.10; 95% CI: 1.73-2.54), compared to those aged <25 years.

CONCLUSIONS

The pattern of tobacco use varied widely, underscoring the need for intensified efforts towards implementing policies that address all tobacco products, not only manufactured cigarettes.

Comparison between the mainstream smoke of eleven RYO tobacco brands and the reference tobacco 3R4F

In this study 11 commercial roll-your-own (RYO) tobacco brands sold in Spain and the reference tobacco 3R4F have been smoked and several components of the mainstream tobacco smoke have been analyzed. Cigarettes were prepared using commercial tubes, and were smoked under smoking conditions based on the ISO 3308. The gaseous and condensed fractions of the smoke from RYO brands and 3R4F have been analyzed and compared. RYO tobaccos, as opposed to 3R4F, present lower amounts of condensed products in the traps than in the filters. In general, RYO tobaccos also provide lower yields of most of the compounds detected in the gas fraction. The yield of CO is between 15.4 and 20.4 mg/cigarette. In most of the cases studied, RYO tobaccos deliver higher amounts of nicotine than the 3R4F tobacco. On average, the yield of the different chemical families of compounds appearing in the particulate matter retained in the cigarette filters tends to be around three times higher than those obtained from 3R4F, whereas similar values have been obtained in the particulate matter retained in the traps located after the filters. It can be concluded that RYO tobaccos are not less hazardous than the reference tobacco, which may be contrary to popular belief.

Differential patterns of tobacco use among black men and women in Cape Town: the cardiovascular risk in black South Africans study

INTRODUCTION

To examine the prevalence and determinants of tobacco use in the 25-74-year-old urban Black population of Cape Town and to examine the changes between 1990 and 2008-2009 in the 25-64-year-old sample.

METHODS

In 2008-2009 (n = 1,099), a representative cross-sectional sample was randomly selected from the same townships sampled in 1990 (n = 986). Sociodemographic characteristics, tobacco use by the World Health Organization (WHO) STEP-wise questionnaire, and psychosocial stress, including sense of coherence (SOC), locus of control, and adverse life events, were determined. Survey logistic regression analysis assessed the determinants of smoking ≥ 1 cigarette/day.

RESULTS

There were 392 men and 707 women. Age-standardized prevalence of smoking ≥ 1 cigarette/day was 48.5% (95% confidence interval [CI] = 43.0-54.0) in men and 7.8% (95% CI = 5.8-10.5) in women (p < .001). Prevalence in men was lower in 2008-2009 (51.0%, 95% CI = 45.2-56.7) compared with 1990 (59.7%, 95% CI = 53.8-65.4) but unchanged in women (2008/09: 8.0%, 95% CI = 5.9-10.7; 1990: 8.4%, 95% CI = 6.0-11.8). In the logistic model for men, smoking was associated with younger age (p = .005) and being poor (p = .024). In women, spending more than half their lives in the city (p < .001), being poor (p = .002), and coping poorly with stress (defined by lower SOC; OR = 1.04, 95% CI = 1.01-1.08; p = .035) were associated with smoking. Increasing number of adverse events, which replaced SOC in the same models, was significant for women (OR = 1.10, 95% CI = 1.01-1.21; p = .047) but not for men. Education level, employment status, and housing quality were not relevant for men or women.

CONCLUSIONS

The high smoking prevalence in men and unchanged rate in women require additional interventions to curtail this behavior.