Environmental tobacco smoke at home and in public places prior to smoking ban enforcement: Assessment by hair analysis in a population of young adult students

Despite inititatives to reduce tobacco consumption, smoking remains a primary cause of death for both smokers and nonsmokers exposed to environmental tobacco smoke (ETS). The characteristics of some specific groups can make them more exposed to ETS or limit the benefit of prevention measures. This study investigated determinants of ETS in a population of young adult students, considered at higher risk of exposure due to their specific lifestyle. This cross-sectional study involved 90 students aged 20 ± 1.7 years, from the University of Luxembourg, prior to the smoking ban enforcement in public places in the country. Participants reported their tobacco consumption and exposure to ETS at home and/or in public places, and provided a hair sample analyzed for nicotine and cotinine. Nicotine and cotinine were significantly higher in smokers than in nonsmokers' hair in general (median: 2.6 vs. 0.9 ng/mg and 87.1 vs. 22.5 pg/mg respectively). However, nonsmokers exposed to ETS at home and in public places had comparable concentrations to smokers (nic = 2.2 ng/mg; cot = 56.2 pg/mg), whereas unexposed nonsmokers presented significantly lower values (nic = 0.4 ng/mg, cot = 8.5 pg/mg). Nonsmokers exposed to ETS only at home presented higher values than nonsmokers only exposed in public places (nic: 1.3 vs. 0.8 ng/mg, cot: 70.4 vs. 15.0 pg/mg). The study shows the widespread exposure to ETS in this population, the importance of exposure assessment, and the relevance of hair analysis for this purpose. Results suggest that ETS can lead to equivalent exposure to active smoking and that exposure at home can highly contribute to ETS, which is not solved by smoking ban in public places.

Promoting Smoke-Free Environments: The Impact of Thirdhand Smoke Awareness on Smoking Bans at Home

OBJECTIVE

A creating smoke-free home is a way to protect a vulnerable group from being exposed to secondhand smoke in the home, such as children, infants, and non-smokers. Studies reported an intervention for promoting a smoke-free home by using secondhand smoke messages and smoking cessation messages. However, the thirdhand smoke (THS) message has rarely been found. Therefore, this study aimed to explore the prevalence and correlations of smoking bans in homes.

METHODS

Secondary data from a community-based cross-sectional design survey was used for this study. Smoking ban status was defined as a smoking ban or no smoking ban. We used multiple logistic regression to test the association between factors and smoking ban status. An adjusted odd ratio and 95% confidence interval were reported.

RESULTS

Of the 882 participants included in this analysis, 38.66% (95%CI: 35.43, 41.97) had a smoking ban at home. A multiple logistic regression analysis showed that participants who believe that secondhand or THS harms children had a greater correlation with developing a smoking ban in the home compared with those who did not believe (odd ratio: 3.94, 95% confidence interval: 2.35, 6.60 and odd ratio:4.22, 95% confidence interval:2.6, 6.86, respectively).

CONCLUSION

This study found that the belief that thirdhand smoke and secondhand smoke exposure harm children. The smoke-free home message's relevance to the harms of thirdhand smoke exposure should be adapted to be promoted, especially in homes.

Smoking Bans and Circulatory System Disease Mortality Reduction in Macao (China): Using GRA Models

This study evaluates the association between smoking rates and mortality from circulatory system diseases (CSD) after implementing a series of smoking bans in Macao (China). (1) Background: Macao phased in strict total smoking bans since 2012. During the past decade, smoking rates among Macao women have dropped by half. CSD mortalities in Macao also show a declining trend. (2) Method: Grey relational analysis (GRA) models were adopted to rank the importance of some key factors, such as income per capita, physician density, and smoking rates. Additionally, regressions were performed with the bootstrapping method. (3) Results: Overall, smoking rate was ranked as the most important factor affecting CSD mortality among the Macao population. It consistently remains the primary factor among Macao's female population. Each year, on average 5 CSD-caused deaths were avoided among every 100,000 women, equivalent to about 11.45% of the mean annual CSD mortality. (4) Conclusions: After the implementation of smoking bans in Macao, the decrease in smoking rate among women plays a primary role in the reduction in CSD mortality. To avoid excess CSD mortality due to smoking, Macao needs to continue to promote smoking cessation among the male population.

Smoke-free homes in Poland during the COVID-19 pandemic - a nationwide cross-sectional survey

OBJECTIVES

Secondhand smoke exposure causes serious health problems. Banning smoking in public venues decreases exposure to secondhand smoke. However, the implementation of smoke-free rules in a private setting (including homes) is largely voluntary. This study aimed to assess the prevalence and characteristics of voluntary smoke-free home rules in Poland during the COVID-19 pandemic as well as to identify factors associated with the voluntary implementation of smoking bans at home.

MATERIAL AND METHODS

This cross-sectional survey was conducted in March 2022 with a nationally representative sample of 1090 individuals aged ≥18 years in Poland. Data were collected using a computerassisted web interviewing (CAWI) technique. The research tool was an original questionnaire developed for the purpose of this study.

RESULTS

Nationally, 60.6% of individuals had total ban on smoking in home (100% smoke-free home rules), 34.0% had implemented a partial smokefree home rule and 5.4% had not implemented any smoke-free home rules. Over three-quarters of non-smokers (76.8%) and only one-fifth of smokers (20.7%) had adopted a full smoke-free home rule. In multivariate logistic regression analysis, males (OR = 1.65, 95% CI: 1.22-2.22, p < 0.01), non-smokers (OR = 13.78, 95% CI: 9.80-19.38, p < 0.001), respondents who had higher education (OR = 1.57, 95% CI: 1.15-2.14, p < 0.01) as well as those who lived alone (OR = 2.44, 95% CI: 1.52-3.90, p < 0.001) had higher odds of having a 100% smoke-free home rule.

CONCLUSIONS

This study demonstrated the negative impact of the COVID-19 pandemic on the implementation of smoke-free home rules in Poland. Less than two-thirds of the Polish population has adopted a total smoke-free home rule, with significant gaps between smokers and nonsmokers. Information on current voluntary smoke-free rules will be useful for further implementation of the smoke-free law in Poland. Int J Occup Med Environ Health. 2023;36(1):84-95.

Impact of smoking bans and other smoking cessation interventions in prisons, mental health and substance use treatment settings: A systematic review of the evidence

ISSUES

We conducted a systematic review to examine whether smoking bans alone are effective in achieving smoking cessation in people released from prison, and patients discharged from mental health or substance use settings.

APPROACH

We searched health, criminology and social science databases. Detailed search strings were used to combine terms related to smoking bans and cessation interventions in prison, mental health and substance use treatment settings. We used backward and forward snowballing and manual hand searching to find additional studies. Studies were included if they: were published between 1 January 2000 and 25 February 2022; included a complete smoking ban; measured people released from prison and/or mental health and/or substance use patients smoking post-release/discharge from a smoke-free facility; and reported smoking cessation intervention and/or smoking ban outcomes. Methodological quality was assessed using the Effective Public Health Practice Project's Quality Assessment Tool for Quantitative Studies and reviewed by two authors.

KEY FINDINGS

People released from prison, mental health and substance use in-patients who experience a smoking ban while incarcerated or in in-patient settings often relapse to smoking shortly after release or discharge. We found that although smoking bans alone do not promote cessation, multi-component interventions in combination with smoking bans can significantly increase cessation rates post-release/discharge provided they support participants during this time.

CONCLUSIONS

There is limited evidence to suggest tobacco bans alone in prison, mental health and substance use treatment settings are effective in achieving long-term smoking cessation. This review suggests that combining smoking bans and cessation interventions including pre- and post-release/discharge support can be effective in achieving smoking cessation.

Evaluation of a smoke- and tobacco-free campus policy: The issue of displacement

Objective This study evaluates the effectiveness of a smoke- and tobacco-free campus policy by examining the volume, density, and location of discarded cigarette butts before and after the implementation of the policy. Participants: Student, staff, and faculty volunteers collected and recorded the location of discarded cigarette butts in April 2017 and October 2018. Methods: The Smoke and Tobacco Free Environment policy was effective September 1, 2017. A campus-wide collection of cigarette butts was conducted 5 months before, and 13 months after it came into effect. Results: The number of cigarette butts on campus decreased after policy implementation, especially in areas with formal enforcement. There was evidence of displacement of smoking behavior from the campus center to its periphery where parking lots and staff buildings are located. Conclusions: Formal enforcement is key to increasing the efficacy of the policy. Interventions should be directed to the locations where smoking behavior is concentrated.

Smoking Beyond Prison Bans: The Impact of Prison Tobacco Bans on Smoking Among Prison Entrants

This study aims to determine whether previous exposure to a total prison smoking ban is associated with a reduction in daily smoking postrelease and to identify the factors associated with daily tobacco use. Demographics, incarceration history, and substance use data were collected from the 2016 National Prisoner Entrants' Blood Borne Virus Survey for 389 Australian prison entrants. Predictors of daily smoking among those exposed to a smoking ban were illicit drug use and Indigenous status. No significant association was found between current daily smoking and recent exposure to a prison smoking ban, suggesting that the majority of Australian prisoners exposed to a tobacco ban while incarcerated will return to smoking once released. Complementary and culturally specific interventions supporting abstinence postrelease should be considered.

Readiness for implementation of smoke-free work hours in private companies: A qualitative study of perceptions among middle managers

INTRODUCTION

Workplaces are important settings for implementation of smoke-free environments. In this study, we follow a medical production company with 677 employees that implemented one of the most stringent tobacco policies legally possible in Denmark – smoke-free work hours – which means that employees are not allowed to smoke during work time. This study explores tobacco use restrictions during work hours regarding readiness of implementation, focusing specifically on middle managers’ perceptions and considerations, as well as their perceived responsibility in enforcing these.

METHODS

A case study is presented. Two focus groups of 10 middle managers were conducted, seven months before smoke-free work hours were implemented. The facilitators used open-ended questions, which consisted of a structured section with specific themes related to the implementation of smoke-free work hours. Focus groups were recorded, transcribed, and analyzed thematically.

RESULTS

We identified five main themes: 1) Benefits of the new policy due to better health, lower sickness-related absences, increased productivity, and improved branding value; 2) Social interactions across smoking status; 3) Smoking is a private matter with ethical dimensions; 4) The role of middle managers and concerns about enforcement; and 5) Limited experience with resistance from the smoking employees.

CONCLUSIONS

The findings suggest that workplaces in the preparation phase should ensure that: 1) The middle managers gain training on how to talk with employees about smoking cessation; 2) The middle managers are equipped to handle the new policy and have a joint vision and understanding of why and how they should enforce it; and 3) Room is made for discussions on resistance and enforcement-related challenges as well as ethical issues.

Extension of Public Smoking Ban Was Not Associated with Any Immediate Effect on Stroke Occurrence in Finland

We investigated the association between the widening of a nationwide restaurant smoking ban, enacted on 1 June 2007, and stroke admissions. All acute stroke admissions between 1 May 2005 and 30 June 2009 were retrieved from a mandatory registry covering mainland Finland. Patients aged ≥18 years were included. One annual admission per patient was included. Negative binomial regression accounting for the at-risk population was applied. We found no difference in stroke occurrence before and after the smoking ban within 7 days (p = 0.217), 30 days (p = 0.176), or the whole study period (p = 0.998). Results were comparable for all stroke subtypes (ischemic stroke, intracerebral hemorrhage, and subarachnoid hemorrhage). There was no sign of decreased occurrence in June 2007 compared to June in 2005–2006, and all subtypes of stroke occurred at least as frequently in both May and June of 2008 as in May and June of 2007. In conclusion, the nationwide restaurant smoking ban Finland enacted in June 2007 was not associated with any immediate reduction in stroke occurrence.

The effects of community participation program on smoke-free homes in a suburban community of Thailand

INTRODUCTION

Smoking inside the home affects the health of both the smoker and family members via secondhand exposure. This research examined the impact of a community participation program on creating smoke-free homes in a suburban community in Thanyaburi district, Pathumthani province in Thailand.

METHODS

The study involved families, with a smoker in the home, that were randomly assigned to intervention and control groups each containing 27 families. The intervention group was administered with the community participation program for smoke-free homes for 5 sessions during the 6-month period of study. The program included providing information on secondhand smoking and harms, knowledge about quitting smoking and healthcare support, practice skills, campaigns in the community, visiting and encouraging, and reflecting and evaluation. The control group was normally treated by the community committee and health volunteers. Data collection was undertaken at baseline and at 6 months after implementation by an interview with questionnaires.

RESULTS

Our results show that after the implementation, the intervention group reported significantly higher mean score on skills in negotiating with smokers for a smoking-ban inside home and mean score on emotional support for non-smoking inside the home than those at baseline and those of the control group. The proportion having smoking ban home rules in the intervention group was significantly higher than at baseline and that of the control group (92.6% vs 18.5%). The proportion of smoke-free homes was higher in the intervention than in the control group (75% vs 0%).

CONCLUSIONS

These findings suggest that community participation programs for smoke-free home may be effective in raising awareness on the impact of secondhand smoke among family members and in working together to manage smoke-free home environments. The program may be applicable for further development within communities to achieve smoke-free homes.

Prevalence and predictors of smoking, quit attempts and total smoking ban at the University of Turku, Finland

OBJECTIVES

The current study employed socio-demographic, health and lifestyle, and academic variables to assess the prevalence and independent predictors of daily smoking, attempts to quit smoking, and agreement with total smoking ban at university.

METHODS

Students at the University of Turku (1,177) completed an online questionnaire that assessed socio-demographic, health and lifestyle, and academic characteristics, and three smoking variables (smoking, attempts to quit, agreement with total smoking ban at university). Bivariate relationships and multiple logistic regression assessed relationships between student characteristics and the three smoking variables before and after controlling for all other variables.

RESULTS

Slightly < 80% of students never smoked, 16% were occasional, and about 6% were daily smokers, and about 40% had attempted to quit. Nearly half the sample agreed to total smoking ban at university. Physical activity, consuming alcohol, illicit drug/s use and daily smoking were significant independent predictors across > 1 of the three smoking variables. Age, health awareness, importance of achieving good grades, academic performance compared to peers, study burden, and mother's educational level were significant independent predictors of one of the three variables examined.

CONCLUSION

Universities need to assess smoking, with specific focus on the modifiable independent predictors that were associated with > 1 the variables examined, to encourage physical activity and pay attention to reduce alcohol consumption and illicit drug/s and daily smoking, whilst targeting at-risk students. University strategies should be part of the wider country-wide effective tobacco control policies.

Does the implementation of smoke-free laws and smoking culture affect exposure to tobacco smoking? Results from 3 hospitality settings in South Korea

OBJECTIVES

It is especially difficult for hospitality workers to avoid secondhand smoke (SHS), meaning that they are likely particularly vulnerable to the effects of SHS. The authors aimed to determine the degree to which smoke-free laws protect hospitality workers from SHS exposure, by examining biochemical markers of such exposure.

MATERIAL AND METHODS

This was a cross-sectional study examining SHS exposure in non-smoking employees working in hospitality settings where smoking is prohibited or permitted. The following biomarkers were selected: cotinine and tobaccospecific nitrosamines, which are known to measure SHS exposure, and 2 representative carcinogens: 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK). The authors compared these biomarkers between 3 hospitality settings. A descriptive analysis was performed. In addition, they conducted 1-way and 2-way analysis of covariance (ANCOVA) to compare the biochemical markers.

RESULTS

Smoking substances were identified by smoking ban levels. In the case of hair nicotine and urine cotinine, their concentrations were lower in areas with a complete smoking ban than in both areas with a separate smoking room and no smoking ban; however, there was no statistically significant difference between these. In the case of dust NNK, its level was the lowest in areas with a complete smoking ban. To confirm the smoking ban effect by hospitality settings, the authors checked the results of the 2-way ANCOVA. In karaoke and billiard halls, the dust NNK concentrations were significantly higher in areas with no smoking ban than in areas with a separate smoking room.

CONCLUSIONS

Exposure to SHS is more prevalent in places that are more lenient when it comes to smoking (e.g., Internet cafés) than in places that are not (e.g., restaurants and cafés), even when smoking is similarly prohibited in both types of places. Int J Occup Med Environ Health. 2021;34(1):53-67.

The impact of local smoke-free policies on smoking behaviour among adults in Indonesia: a quasi-experimental national study

AIMS

To investigate to what extent the adoption of local smoke-free policies (SFPs) in Indonesia in 2007-13 was associated with changes in adult smoking behaviour.

DESIGN

A quasi-experimental study.

SETTING

Indonesia, 2007 and 2013.

PARTICIPANTS

A total of 1 052 611 > 25-year-old adults. Data were derived from the 2007 and 2013 Indonesian national health survey.

MEASUREMENTS

For both years, provincial and district SFPs were identified from government documents in 497 districts in 33 provinces. Multi-level logistic regression analysis assessed the association of adoption of provincial and district SFPs between 2007 and 2013 with smoking continuation (among ever-smokers), current smoking and high smoking intensity (among current smokers). We controlled for survey year, SFP in 2007, socio-demographics and district characteristics.

FINDINGS

Provincial SFP exposure was associated with lower odds of smoking continuation [strong SFP versus no SFP: odds ratio (OR) = 0.71, 95% confidence interval (CI) = 0.66-0.76] and smoking intensity (strong SFP: OR= 0.91, 95% CI = 0.86-0.97), but also with higher odds of current smoking (strong SFP versus no SFP: OR = 1.08; 95% CI = 1.04-1.12). District SFP exposure was associated with higher odds of smoking continuation (strong SFP versus no SFP: OR = 1.07, 95% CI = 1.01-1.14) and current smoking (strong SFP versus no SFP: OR = 1.09, 95% CI = 1.05-1.14), but with lower odds of smoking intensity (moderately strong SFP versus no SFP: OR = 0.95, 95% CI = 0.91-0.99).

CONCLUSIONS

There may be an association between the adoption of local smoke-free policies in Indonesia and decreased adult smoking intensity. However, the evidence is inconsistent, which may reflect problems with policy implementation and enforcement.

Voluntary Smoke-Free Home Rules and Exposure to Secondhand Smoke in Poland: A National Cross-Sectional Survey

Smoke-free policies have been shown to significantly reduce secondhand smoke (SHS) exposure in private and public places. The objectives of this study were to: (1) to assess the prevalence and characteristics of voluntary smoke-free home rules in Poland; and (2) assess the association of smoke-free rules with self-reported SHS exposure in private homes. A cross-sectional survey was conducted in September 2019 with a nationally representative sample of 1011 individuals aged 15 and over. Nationally, 66.1% of individuals had a 100% smoke-free home rule (78.9% of non-smokers and 18.6% of smokers; p < 0.001), while a further 24.6% had adopted a partial home smoking rule. SHS exposure in the home during past month was reported by 6.1% of respondents (11.5% of smokers and 4.5% of non-smokers; p < 0.001). The lowest level of SHS exposure (1.8%) was observed among respondents who had implemented a full smoke-free home rule. Non-smokers had higher odds of having adopted a total smoke-free home rule compared with smokers (aOR: 19.17; 95% CI: 12.89-28.50). Moreover, non-smokers had lower odds (aOR: 0.35; 95% CI: 0.20-0.61; p < 0.001) of self-reporting SHS smoke exposure at home. Although two-thirds of the Polish population have adopted a full smoke-free home rule in their homes, smokers continue to lag in adoption rates relative to non-smokers.

Compliance with the smoking ban in urban public transportation in Chile

INTRODUCTION

The aim of the study is to assess the national level of compliance with the Chilean smoke-free legislation in the urban public transportation system.

METHODS

In this cross-sectional observational study, we studied a national representative sample of 475 vehicles obtained through a two-stage cluster sampling design in 2018. First, 57 municipalities were randomly selected, proportionally to the total number of public transportation vehicles. Second, within each municipality, a convenience sample of up to 4 taxis, 4 buses, and 2 metro coaches was observed. We determined the non-compliance level by systematic direct observation of smoking inside the cabin of the vehicle. We estimated the percentage of the visited vehicles where smoking was observed inside the cabin of the vehicle.

RESULTS

The observation of metros, buses and taxis was completed in 24, 52, and 48, of the 57 sampled municipalities, respectively. Smoking was observed inside of about 2% of buses and 7% of taxis. Smoking was not observed in metro carriages. Overall, smoking was observed in almost 3% of the vehicles studied. A 3% noncompliance could expose a significant number of persons in public transportation to secondhand smoke, given that every 100 inhabitants results in about 84 rides a day of almost one hour duration. There are few comparable studies to put in an international context our results. In 2018, the year in which we collected the data, WHO considered that compliance with the law in public transportation was maximum. Our compliance estimate was lower, however WHO used a different methodology and its scope also included the inter-urban mobility, which we did not.

CONCLUSIONS

The study highlights the need to improve the enforcement of the smoke-free law in the transportation system in Chile, which presently is almost non-existent.

Further Insights on Predictors of Environmental Tobacco Smoke Exposure during the Pediatric Age

Background: The smoking ban in public places has reduced Environmental Tobacco Smoke (ETS) exposure for non-smokers, but despite this, domestic environments still remain places at high risk of exposure, and, today, about 40% of children worldwide are exposed to ETS at home. The aims of the study are to investigate the contribution of several factors on ETS exposure among a group of Italian children and to evaluate the changes in smoking precautions adopted at home when the smoker is the mother, the father, or both parents, respectively. Methods: A cross-sectional study was performed on a sample of 519 Italian schoolchildren. Information was collected via a questionnaire. Results: 41.4% of the participants lived with at least one smoker. Almost half of the children exposed to ETS lived with one or more smokers who do not observe any home smoking ban. Lower maternal or paternal educational levels significantly increase the risk of ETS exposure at home and the "worst case" is represented by both parents who smoke. Conclusions: More effective preventive interventions are needed to protect children from ETS exposure. Some interventions should be specifically dedicated to smokers with a low educational level and to mothers that smoke.

Smoke-free legislation and neonatal and infant mortality in Brazil: longitudinal quasi-experimental study

OBJECTIVE

To examine the associations of partial and comprehensive smoke-free legislation with neonatal and infant mortality in Brazil using a quasi-experimental study design.

DESIGN

Monthly longitudinal (panel) ecological study from January 2000 to December 2016.

SETTING

All Brazilian municipalities (n=5565).

PARTICIPANTS

Infant populations.

INTERVENTION

Smoke-free legislation in effect in each municipality and month. Legislation was encoded as basic (allowing smoking areas), partial (segregated smoking rooms) or comprehensive (no smoking in public buildings). Associations were quantified by immediate step and longer term slope/trend changes in outcomes.

STATISTICAL ANALYSES

Municipal-level linear fixed-effects regression models.

MAIN OUTCOMES MEASURES

Infant and neonatal mortality.

RESULTS

Implementation of partial smoke-free legislation was associated with a -3.3 % (95% CI -6.2% to -0.4%) step reduction in the municipal infant mortality rate, but no step change in neonatal mortality. Comprehensive smoke-free legislation implementation was associated with -5.2 % (95% CI -8.3% to -2.1%) and -3.4 % (95% CI -6.7% to -0.1%) step reductions in infant and neonatal mortality, respectively, and a -0.36 (95% CI -0.66 to-0.06) annual decline in the infant mortality rate. We estimated that had all smoke-free legislation introduced since 2004 been comprehensive, an additional 10 091 infant deaths (95% CI 1196 to 21 761) could have been averted.

CONCLUSIONS

Strengthening smoke-free legislation in Brazil is associated with improvements in infant health outcomes-particularly under comprehensive legislation. Governments should accelerate implementation of comprehensive smoke-free legislation to protect infant health and achieve the United Nation's Sustainable Development Goal three.

Attitudes towards anti-smoking legislation and prevalence of tobacco consumption in Spanish primary healthcare personnel

INTRODUCTION

Our aim was to ascertain how the anti-smoking legislation of 2005/2010 has affected the behavior of primary healthcare center (PHC) personnel (medical and nonmedical) with respect to their attitudes towards tobacco, its consumption and the legislative changes.

METHODS

We conducted a multi-center descriptive study of a randomized conglomerate sample of PHC personnel from each Autonomous Community in Spain. The questionnaire covered tobacco consumption, and knowledge/attitudes towards smoking and legislation. The statistical analysis used SPSS software.

RESULTS

The sample consisted of 2040 PHC employees (1578 women, 77.4%). Never smokers, ex-smokers, and smokers represented 46.7%, 37.8%, and 15.5% of the sample, respectively. Tobacco prevalence amongst physicians and nurses was 12.3%. Following the introduction of the antismoking legislation, a decrease in consumption was observed. Most of the participants considered that tobacco consumption affected health, was an addictive illness, and passive smoking had an impact on the health of non-smokers. Whilst 91.6% agreed with the current legislation, only 25% felt that it encouraged cessation.

CONCLUSIONS

Spanish primary healthcare professionals have a relatively low prevalence of smoking compared to the general population. It is necessary to implement more legislative measures to improve and maintain this outcome.

Can a smoking ban save your heart?

This paper evaluates the causal effect of environmental tobacco exposure on health by exploiting the time and geographical variation in public-place smoking bans implemented in Switzerland between 2007 and 2011. We use administrative data on hospitalizations for acute myocardial infarction, which allow to measure the short-run effects of the policy on an objective metric of health. We show that the incidence of acute myocardial infarction decreases by approximately 8% immediately after implementation of the law with large heterogeneity across regions. Our results indicate that the policy was effective in reducing the negative externality of smoking with potential spillovers on health inequality.

Exploring the barriers and incentive architecture for modifying smoke exposures among asthmatics

BACKGROUND

The socio-structural barriers for reducing secondhand smoke exposure (SHSe) among children with asthma may be insurmountable for low-income caregivers. Health promoting financial incentives (HPFIs) are increasingly being used in the adult population to motivate and sustain tobacco-reduction behaviors. We assessed barriers to SHSe reduction and means to overcome them through the design of an HPFI-based, caregiver-targeted SHSe reduction study.

METHODS

Using a mixed-methods design, we conducted semi-structured in-depth interviews among low-income primary caregivers of children with asthma residing in Baltimore City. Quantitative data using an online survey were used to augment interview findings.

RESULTS

Home smoking restrictions were a frequently referenced strategy for decreasing SHSe, but interviewees (n = 22) described the complex social pressures that undermine reduction efforts. Caregivers redirected conversations from broadly implemented smoking bans towards targeted reduction strategies among mothers and members of their social network who are active smokers. Participants converged on the notion that sustainable SHSe reduction strategies are realizable only for mothers who are active smokers, possess high self-efficacy and social structures that promote cessation. Survey data (n = 56) clarified the multiple contexts that underlie pediatric SHSe and preferred HPFI architecture that included fixed, recurrent payments contingent on reduced nicotine biomarkers and completion of basic asthma education classes.

CONCLUSIONS

Based on the combined analyses, we envision testing a HPFI-based study design whose optimal target population included low-income caregivers and members of their social network where incentives are tied to pediatric biomarkers and asthma education-an integrated approach that has not yet been used in pediatric tobacco studies.

Violation of the Tobacco Control Law by Drivers in Vehicles in Two Streets in İzmir: A Descriptive Study

OBJECTIVES

After signing and approving the Framework Convention on Tobacco Control (FCTC), Turkey amended laws on tobacco control in 2008 and also expanded the smoking ban in 2013 to include drivers in all vehicles. Four years later, this amendment does not seem as effective. The aim of this study was to observe violation of the law by the drivers and to analyze the association between gender of the driver, type of the vehicle, approximate age group definition of the passenger (either child or adult), and the law violation in two streets in Konak district, İzmir, Turkey.

MATERIALS AND METHODS

In this cross-sectional study, two observer teams were located in two different busy streets on the same afternoon and they collected data on the violation of the law, gender of the driver, approximate age group definition of the passengers (either adult or child), and type of the vehicle (special, taxi, or other commercial). Logistic regression for the violation of the law was conducted.

RESULTS

Law violation prevalence is 7.2%. In univariate analysis, the gender of the driver and having at least one child as a passenger were associated with the violation of the law. In multivariate analysis, not having children increases (OR: 8.4) the risk of the violation of the law.

CONCLUSION

The violation of the law was high, but the drivers seemed to be aware of the harms of smoking by looking at the increased risk of the violation in vehicles, in which no child was carried as passengers.

Changes in smoking prevalence after the enforcement of smoking control regulations in urban Shanghai, China: Findings from two cross-sectional surveys

INTRODUCTION

The Smoking Control Regulation in Public Places (hereafter, the ‘regulations’) has been implemented in Shanghai since 2010. This study explores the changes in smoking prevalence and its influencing factors among urban Shanghai residents.

METHODS

Two rounds of household investigations (the Health Status and Health Service Utilization Survey) were carried out using a multistage probability proportionate-to-size sampling method in an urbanized district in 2010 and 2015. Descriptive and logistic regression analyses were applied to the statistics.

RESULTS

From 2010 to 2015, the standardized current smoking rate fell from 24.8% to 19.1% (38.3% to 32.0% among men, and 1.9% to 1.4% among women). Meanwhile, the standardized smoking cessation rate increased from 18.1% to 23.3%. Smoking prevalence in respondents aged 45 to 59 years was still higher than that of other age groups. Changes in smoking prevalence and cessation rates were more obvious in respondents aged 30–44 and over 75 years. Sex, age, education, marital status, and alcohol use were influencing factors of current smoking, while sex, age and alcohol use were influencing factors of smoking cessation.

CONCLUSIONS

The implementation of smoking control regulations may be beneficial for reducing smoking and increasing smoking cessation, especially among middle-aged and older men. Nevertheless, tobacco control in urban Shanghai still faces huge challenges. Therefore, more targeted and comprehensive measures should be taken.

Impact of Smoking Ban on Passive Smoke Exposure in Pregnant Non-Smokers in the Southeastern United States

Prenatal passive smoke exposure raises risk for negative birth outcomes. Legislation regulating public smoking has been shown to impact exposure levels, though fewer studies involving pregnant women have been conducted within the U.S. where bans are inconsistent across regions. This study examined the effect of a ban enacted in the southeastern U.S. on pregnant women's cotinine levels. Additional analyses compared self-reported exposure to cotinine and identified characteristics associated with passive exposure. Pregnant women (N = 851) were recruited prospectively between 2005 and 2011 in North Carolina. Sociodemographic and health data were collected via surveys; maternal blood samples were assayed for cotinine. Among non-active smokers who provided self-report data regarding passive exposure (N = 503), 20% were inconsistent with corresponding cotinine. Among all non-smokers (N = 668), being unmarried, African American, and less educated were each associated with greater passive exposure. Controlling for covariates, mean cotinine was higher prior to the ban compared to after, F(1, 640) = 24.65, p < 0.001. Results suggest that banning smoking in public spaces may reduce passive smoke exposure for non-smoking pregnant women. These data are some of the first to examine the impact of legislation on passive smoke exposure in pregnant women within the U.S. using a biomarker and can inform policy in regions lacking comprehensive smoke-free legislation.

Household Smoking Restrictions Relate To Time To First Cigarette Smoked In The Morning

Introduction

The time a smoker waits until the first cigarette of the morning is often used as a measure of dependence with the rationale that more dependent smokers will smoke sooner upon waking than will less dependent smokers after going several hours without a cigarette overnight.

Aims

We sought to examine the relationship between time-to-first-cigarette (TTFC) and household smoking restrictions in two independent samples.

Methods

Two samples of smokers, one treatment-seeking community sample (N = 433) and one non-treatment-seeking sample of smokers with serious mental illness (i.e., Schizophrenia, Schizoaffective Disorder, or Bipolar I Disorder) (N = 94), provided information on cigarette dependence with the Fagerström Test for Nicotine Dependence and on household smoking restrictions.

Results

Half (50%) of smokers with serious mental illness and 36.7% of smokers from the general population reported that there were no limitations to smoking in their home. Household smoking restrictions were significantly and positively related to TTFC in both samples.

Conclusions

These data indicate that greater attention to TTFC may be warranted. The TTFC item is intended to measure dependence based on the premise that greater dependence should be associated with shorter TTFC. If TTFC is related to a household smoking ban, however, this item may not be assessing dependence as intended in some cases.

Complying with the smoking ban by students before and after introducing legislative intervention

OBJECTIVES

More and more countries introduce a total ban on smoking tobacco in public places. The aim of this work was to evaluate the effectiveness of "The Act of 8 April 2010 on amendment of the act on protection of health against the consequences of consumption of tobacco and tobacco products and act on National Sanitary Inspectorate" and assess the frequency of complying with the smoking bans by the students of the Medical University of Lodz, Poland.

MATERIAL AND METHODS

Between 2007-2011, at the Social Medicine Institute of the Medical University of Lodz, a study using random survey was carried out involving students who were starting their studies at the Health Department of the Medical University of Lodz. The analysis of the collected material showed that 1038 people reported being smokers at the time of the study. Among that group, 530 students were included in the study prior to, and 508 after the introduction of the amendment. In order to verify their compliance with the smoking ban, the respondents were asked whether they smoked only in designated areas or wherever they wanted to.

RESULTS

The ratio of people claiming they smoked anywhere they wanted to, disregarding the smoking ban, was 60% (N = 318) and after the amendment had been introduced, this ratio was 62.2% (N = 316), it increased by 2.2 percentage points. The observed difference was statistically irrelevant (Chi² = 0.530, p > 0.05).

CONCLUSIONS

The Act "On amendment of the act on protection of health against the consequences of consumption of tobacco and tobacco products and Act on National Sanitary Inspectorate" in Poland did not result in the expected changes in the frequency of complying with the smoking ban by the 1st year students.

Tobacco policies and on-premise smoking in bars and clubs that cater to young African Americans following the Maryland Clean Indoor Air Act of 2007

African American young adults ages 18-25 smoke less than their Caucasian peers, yet the burden of tobacco-related illness is significantly higher in African Americans than in Caucasians across the lifespan. Little is known about how clean indoor air laws affect tobacco smoking among African American young adults. We conducted a systematic observation of bars and clubs with events targeted to African American adults 18-25 in Baltimore City at two timepoints (October and November of 2008 and 2010) after enforcement of the Maryland Clean Indoor Air Act (CIAA). Twenty venues-selected on the basis of youth reports of popular venues-were rated during peak hours. All surveillance checklist items were restricted to what was observable in the public domain. There was a significant decrease in observed indoor smoking after CIAA enforcement. Observed outdoor smoking also decreased, but this change was not significant. Facilities for smoking outdoors increased significantly. The statewide smoking ban became effective February 1, 2008, yet measurable changes in smoking behavior in bars were not evident until the City engaged in stringent enforcement of the ban several months later.

Public support for smoke-free policies in Jordan, a high tobacco burden country with weak implementation of policies: Status, opportunities, and challenges

Several Eastern Mediterranean (EM) countries, including Jordan, suffer from high smoking prevalence but weak implementation of smoking bans (SB). Public support (PS) influences successful implementation of SB, but little is known about PS for SB in EM countries with weak SB implementation. We conducted a cross-sectional survey measuring knowledge and perceptions of a large purposive sample of the Jordanian public regarding tobacco harms and anti-tobacco laws. Among 1169 respondents, 46% of whom used tobacco, PS for SB varied from 98% to 39% based on venue, being highest for health facilities and lowest for coffee shops. In venues with relatively lower PS (restaurants, coffee shops), lower educational groups, older age groups, nonsmokers, and those who had more knowledge regarding tobacco and secondhand smoke harms were significantly more likely to support SB than the highest educational group, the youngest age group, smokers, and those who had less knowledge (respectively). Our results suggest that aggressive promotion of SB is needed in countries like Jordan (where smoking is increasing), tailored to venue and specific sociodemographic characteristics of the public accessing these venues, particularly restaurants and coffee shops. Multifaceted health messages that enhance public knowledge can be of benefit in improving PS for SB.

Inpatient views and experiences before and after implementing a totally smoke-free policy in the acute psychiatry hospital setting

In the present study, we examined the views and experiences of patients admitted to an acute psychiatry unit before and after the implementation of a totally smoke-free policy. Forty-six inpatients completed a questionnaire assessing their views before the smoking ban. Another 52 inpatients completed a questionnaire assessing their views and experiences after the smoking ban. Before the totally smoke-free policy, 69.6% smoked, with 67.7% smoking more when admitted to the psychiatry ward. Before the smoking ban, 54.4% reported that the totally smoke-free policy would be 'negative' or 'very negative,' and 30.5% said it would be 'positive' or 'very positive.' After the totally smoke-free policy, 57.7% smoked heavily before hospital (mean cigarettes/day = 24.9), with consumption dramatically reducing following admission to a totally smoke-free psychiatric unit (mean cigarettes/day = 8.3). After the totally smoke-free policy, 36.5% reported that it was 'negative' or 'very negative,' and 50% reported that it was 'positive' or 'very positive.' Overall, inpatients reported improved acceptance of the policy following implementation. Inpatients stated that the most difficult thing about the smoking ban was experiencing increased negative emotions, while the most positive aspect was the improved physical environment of the ward. Inpatients who smoke must be appropriately supported using a range of strategies, and in the present study, we suggest relevant clinical implications.

Quitting smoking: The importance of non-smoker identity in predicting smoking behaviour and responses to a smoking ban

OBJECTIVE

We examined how 'smoker' and 'non-smoker' self- and group-identities and socio-economic status (SES) may predict smoking behaviour and responses to antismoking measures (i.e., the Dutch smoking ban in hospitality venues). We validated a measure of responses to the smoking ban.

DESIGN

Longitudinal online survey study with one-year follow-up (N = 623 at T1 in 2011; N = 188 at T2 in 2012) among daily smokers.

MAIN OUTCOME MEASURES

Intention to quit, quit attempts and 'rejecting', 'victimizing', 'socially conscious smoking' and 'active quitting' responses to the smoking ban.

RESULTS

Non-smoker identities are more important than smoker identities in predicting intention to quit, quit attempts and responses to the smoking ban, even when controlling for other important predictors such as nicotine dependence. Smokers with stronger non-smoker identities had stronger intentions to quit, were more likely to attempt to quit between measurements, and showed less negative and more positive responses to the smoking ban. The association between non-smoker self-identity and intention to quit was stronger among smokers with lower than higher SES.

CONCLUSION

Antismoking measures might be more effective if they would focus also on the identity of smokers, and help smokers to increase identification with non-smoking and non-smokers.

Air nicotine levels in public places in ahmedabad, India: before and after implementation of the smoking ban

Aim:

To compare air nicotine levels in public places in Ahmedabad, India, before (June 2008) and after (January, 2010) the implementation of a comprehensive smoking ban which was introduced in October 2008.

Materials and Methods:

Air nicotine concentrations were measured by sampling of vapor-phase nicotine using passive monitors. In 2008 (baseline), monitors were placed for 5-7 working days in 5 hospitals, 10 restaurants, 5 schools, 5 government buildings, and 10 entertainment venues, of which 6 were hookah bars. In 2010 (follow-up), monitors were placed in 35 similar venues for the same duration.

Results:

Comparison of the overall median nicotine concentration at baseline (2008) (0.06 μg/m³ Interquartile range (IQR): 0.02-0.22) to that of follow-up (2010) (0.03 μg/m³ IQR: 0.00-0.13), reflects a significant decline (% decline = 39.7, P = 0.012) in exposure to second-hand smoke (SHS). The percent change in exposure varied by venue-type. The most significant decrease occurred in hospitals, from 0.04 μg/m³ at baseline to concentrations under the limit of detection at follow-up (%decline = 100, P < 0.001). In entertainment venues, government offices, and restaurants, decreases in SHS exposure also appeared evident. However, in hookah bars, air nicotine levels appeared to increase (P = 0.160).

Conclusion:

Overall, SHS exposure was significantly reduced in public places after the smoke-free legislation came into force. However, nicotine concentrations were still detected in most of the venues indicating imperfect compliance with the comprehensive ban.

Systematic review and meta-analysis of the economic impact of smoking bans in restaurants and bars

AIMS

To review systematically the literature on the economic impact of smoking bans in bars and restaurants and provide an estimate of the impact size using meta-analysis.

METHODS

Studies were identified by systematic database searches and screening references of reviews and relevant studies. Google and web-pages of tobacco control agencies were also searched. The review identified 56 studies using absolute sales, sales ratio or employment data and employing regression methods to evaluate the impact of smoking bans in the United States, Australia or in countries in South America or Europe. The meta-analysis included 39 comparable studies, with 129 cases identified based on the outcome measure, scope of the ban, type of establishment and geographical location. Methodological quality was assessed based on four pre-determined criteria. Study and case selection and data extraction were conducted independently by two researchers.

RESULTS

Random-effects meta-analysis of all cases showed no associations between smoking bans and changes in absolute sales or employment. An increase in the share of bar and restaurant sector sales in total retail sales was associated with smoking bans [0.23 percentage-points; 95% confidence interval (CI) 0.08-0.375]. When cases were separated by business type (bars or restaurants or wider hospitality including bars and restaurants), some differential impacts emerged.

CONCLUSIONS

Meta-analysis of the economic impact of smoking bans in hospitality sector showed overall no substantial economic gains or losses. Differential impacts were observed across individual business types and outcome variable, but at aggregate level these appear to balance out.

Smoke-free laws and direct democracy initiatives on smoking bans in Germany: a systematic review and quantitative assessment

BACKGROUND

Germany's 16 states regulate smoking differently within health protection principles laid down in the federal law. All state smoke-free laws in Germany have undergone at least one change since taking effect.

METHODS

We systematically review federal and state laws regulating smoking, as well as petitions, popular initiatives and referenda that aimed at changing statutory smoking bans. Data generated through the systematic review were correlated with state smoking rates.

RESULTS

The protection from the dangers of secondhand smoke is the primary motive for smoking bans in Germany. The first smoke-free laws affecting smoking in pubs, restaurants and several other public places were introduced in 2007. In 2008, the Federal Constitutional Court of Germany ruled in a leading decision on the smoke-free laws of two states that some common smoking ban exemptions of the introduced smoke-free laws violate the basic right to freely exercise a profession and mandated revisions. All states but Bavaria and Saarland, whose smoking bans were more and less comprehensive than those judged by the constitutional court, respectively, needed to change the smoking ban exemptions to reconcile their smoke-free laws with the constitution. Direct democracy initiatives to change smoking bans were only successful in Bavaria in 2010, but a total of 15 initiatives by citizens' or interest groups attempted to influence non-smokers protection legislation through direct democratic procedures. Early ratification of a smoking ban in a federal state correlates with a higher reduction in the smoking rate from 2005 to 2009 (Spearman's ρ = 0.51, p = 0.04).

CONCLUSIONS

The federal government structure and direct democratic participation in smoke-free legislation in Germany has produced a diversity of local smoking bans and exemptions.

Online comments on smoking bans in psychiatric hospitals units

OBJECTIVE

Individuals with mental health concerns are disproportionately affected by and suffer the negative consequences of tobacco use disorder, perhaps because smoking has historically been part of psychiatry's culture. In the early 1990s, psychiatric inpatient facilities were exempted from U.S. hospital smoking bans, in response to public outcry with national media attention. Almost 2 decades later, the current study characterizes online conversation about psychiatric hospital smoking bans. Previous commenting studies have demonstrated commenting's negativity, documenting the "nasty effect" wherein negative comments color perceptions of neutral articles. Thus, we focused particular attention on cited barriers to implementing health-positive smoke-free policies.

METHODS

We collected online comments (N = 261) responding to popular media articles on smoking bans in inpatient psychiatry between 2013 and 2014 and conducted an inductive and exploratory qualitative content analysis.

RESULTS

Verifying previous studies documenting the prevalence of negative commenting, of the comments explicitly supporting or refuting psychiatry smoking bans, there were over twice as many con comments (n = 44) than pro (n = 18). Many commenters argued for access to outdoor smoking areas and warned of patient agitation and risk posed to care workers. Identified content themes included psychiatric medication and negative side effects, broken mental health systems and institutions, denigration of the health risks of tobacco in the context of mental illness, typical pro-smoking arguments about "smokers' rights" and alternatives (including e-cigarettes), addiction, and stigma.

CONCLUSIONS

The current findings provide a platform to begin to understand how people talk about mental health issues and smoking. Our analysis also raised complex issues concerning forces that impact U.S. patients with serious mental illness but over which they have little control, including medication, the U.S. health system, stigma, perceptions that life with chronic serious mental illness is not worth living, and psychological and physical pain of coping with mental illness. In consideration of identified barriers raised in opposition to smoking bans in inpatient psychiatry, efforts should emphasize patient stakeholder involvement; patient, visitor, and staff protection from smoke exposure; the effectiveness of nicotine replacement for managing withdrawal; and the lack of evidence that cigarettes are therapeutic.

Changes in hospitalization rates for acute coronary syndrome after a two-phase comprehensive smoking ban

AIMS

The impact of a comprehensive stepwise smoking ban (2007 and 2008) was assessed by analysing the hospitalization rate for acute coronary syndrome (ACS) in France, between 2003 and 2009.

METHODS AND RESULTS

Between 2003 and 2009, 867,164 hospitalizations for ACS were observed among about 23 million administrative reports. The age-and gender-standardized hospitalization rates were calculated and their variation before and after the smoking ban implementation was investigated by Poisson regression that included the ACS seasonal variations and the historical trend. The hospitalization rate decreased by 12.8% (from 269 to 235/100,000) with a significant historical trend reduction (p < 0.10(-3)) in all groups, but in young women. After adjusting for linear trend, reductions linked to the ban remained not significant in all groups: relative risk (RR) from 0.96 (95% CI 0.91-1.01) in men older than 55 years to 0.99 (95% CI 0.93-1.04) in men aged 55 years or less after the first phase, and from 0.96 (95% CI 0.89-1.04) in men older than 55 years to 1.03 (95% CI 0.94-1.12) in women older than 65 years after the second phase of the ban.

CONCLUSIONS

This study did not demonstrate a significant effect of a two-phases smoking ban on ACS hospitalization rate. A steadily decrease of this rate over the 7-year period, the past preventive measures in France leading to low levels of passive smoking, and the significant increase in active smoking during the studied period may explain this result. Our study highlights the difficulty of proving an effect of smoking bans in a country with an already low ACS incidence.

Secondhand tobacco smoke exposure in open and semi-open settings: a systematic review

BACKGROUND

Some countries have recently extended smoke-free policies to particular outdoor settings; however, there is controversy regarding whether this is scientifically and ethically justifiable.

OBJECTIVES

The objective of the present study was to review research on secondhand smoke (SHS) exposure in outdoor settings.

DATA SOURCES

We conducted different searches in PubMed for the period prior to September 2012. We checked the references of the identified papers, and conducted a similar search in Google Scholar.

STUDY SELECTION

Our search terms included combinations of "secondhand smoke," "environmental tobacco smoke," "passive smoking" OR "tobacco smoke pollution" AND "outdoors" AND "PM" (particulate matter), "PM(2.5)" (PM with diameter ≤ 2.5 µm), "respirable suspended particles," "particulate matter," "nicotine," "CO" (carbon monoxide), "cotinine," "marker," "biomarker" OR "airborne marker." In total, 18 articles and reports met the inclusion criteria.

RESULTS

Almost all studies used PM(2.5) concentration as an SHS marker. Mean PM(2.5) concentrations reported for outdoor smoking areas when smokers were present ranged from 8.32 to 124 µg/m(3) at hospitality venues, and 4.60 to 17.80 µg/m(3) at other locations. Mean PM(2.5) concentrations in smoke-free indoor settings near outdoor smoking areas ranged from 4 to 120.51 µg/m(3). SHS levels increased when smokers were present, and outdoor and indoor SHS levels were related. Most studies reported a positive association between SHS measures and smoker density, enclosure of outdoor locations, wind conditions, and proximity to smokers.

CONCLUSIONS

The available evidence indicates high SHS levels at some outdoor smoking areas and at adjacent smoke-free indoor areas. Further research and standardization of methodology is needed to determine whether smoke-free legislation should be extended to outdoor settings.

Evaluation of the smoking ban in public places in France one year and five years after its implementation: Findings from the ITC France survey

France implemented a comprehensive smoke-free policy in public places in February 2007 for workplaces, shopping centres, airports, train stations, hospitals and schools. On January 2008, it was extended to meeting places (bars, restaurants, hotels, casinos, nightclubs). This paper evaluates France's smoke-free law based on the International Tobacco Control Policy Evaluation Project in France (the ITC France Project), which conducted a cohort survey of approximately 1,500 smokers and 500 non-smokers before the implementation of the laws (Wave 1, conducted December 2006 to February 2007) and two waves after the implementation (Wave 2, conducted between September-November 2008; and Wave 3, conducted between September-December 2012). Results show that the smoke-free law led to a very significant and near total elimination of indoor smoking in key venues such as bars (from 95.9% to 3.7%) and restaurants (from 64.7% to 2.3%) at Wave 2, which was sustained four years later at Wave 3 (1.4% in restaurants; 6.6% in bars). Smoking in workplaces declined significantly after the law (from 42.6% to 19.3%), which continued to decline at Wave 3 (to 12.8%). Support for the smoke-free law increased significantly after their implementation and continued to increase at Wave 3 (among smokers for bars and restaurants; among smokers and non-smokers for workplaces). The findings demonstrate that smoke-free policies that are implemented in ways consistent with the Guidelines for Article 8 of the WHO Framework Convention on Tobacco Control (WHO FCTC) lead to substantial and sustained reductions in tobacco smoke in public places while also leading to high levels of support by the public.

Smoking ban in public areas is associated with a reduced incidence of hospital admissions due to ST-elevation myocardial infarctions in non-smokers. Results from the Bremen STEMI Registry

INTRODUCTION

Laws banning tobacco smoking from public areas have been passed in several countries, including the region of Bremen, Germany at the end of 2007. The present study analyses the incidence of hospital admissions due to ST-elevation myocardial infarctions (STEMIs) before and after such a smoking ban was implemented, focusing on differences between smokers and non-smokers. In this respect, data of the Bremen STEMI Registry (BSR) give a complete epidemiological overview of a region in northwest Germany with approximately 800,000 inhabitants since all STEMIs are admitted to one central heart centre.

METHODS AND RESULTS

Between January 2006 and December 2010, data from the BSR was analysed focusing on date of admission, age, gender, and prior nicotine consumption. A total of 3545 patients with STEMI were admitted in the Bremen Heart Centre during this time period. Comparing 2006-2007 vs. 2008-2010, hence before and after the smoking ban, a 16% decrease of the number of STEMIs was observed: from a mean of 65 STEMI/month in 2006-2007 to 55/month in 2008-2010 (p < 0.01). The group of smokers showed a constant number of STEMIs: 25/month in 2006-2007 to 26/month in 2008-2010 (+4%, p = 0.8). However, in non-smokers, a significant reduction of STEMIs over time was found: 39/month in 2006-2007 to 29/month in 2008-2010 (-26%, p < 0.01). The decline of STEMIs in non-smokers was consistently observed in all age groups and both sexes. Adjusting for potentially confounding factors like hypertension, obesity, and diabetes mellitus did not explain the observed decline.

CONCLUSIONS

In the BSR, a significant decline of hospital admissions due to STEMIs in non-smokers was observed after the smoking ban in public areas came into force. No reduction of STEMI-related admissions was found in smokers. These results may be explained by the protection of non-smokers from passive smoking and the absence of such an effect in smokers by the dominant effect of active smoking.

The impact of the Danish smoking ban on hospital admissions for acute myocardial infarction

BACKGROUND

Exposure to secondhand smoke is associated with an increased risk of acute myocardial infarction (AMI). The positive impact of a smoking ban on AMI hospitalization rates has been demonstrated both inside and outside Europe. A national smoking ban (SB) was implemented in Denmark on 15 August 2007.

PURPOSE

To evaluate the impact of the Danish SB on hospital admissions for AMI.

METHODS

Poisson regression models were used to analyse changes over time in AMI-admissions in Denmark. We investigated a seven year period: five years before and two years after implementation of the SB. We accounted for the variation in the population size and for seasonal trends. Potential confounders included were: gender, age and the incidence of type 2 diabetes (T2D).

RESULTS

A significant reduction in the number of AMI-admissions was found in the last three years of the study period after adjusting for the potential confounders. The significant reductions were found one year before the SB (relative rate (RR) = 0.86, 95% confidence interval (CI) 0.79-0.94), one year after the SB (RR = 0.77, 95% CI 0.71-0.85) and two years after the SB (RR = 0.77, 95% CI 0.70-0.84).

CONCLUSIONS

A significant reduction in the number of AMI-admissions was found already one year before the SB after adjustment for the incidence of T2D. The results differ from most results found in similar studies throughout the world and may be explained by the incremental enactment of SBs in Denmark and the implementation of a nation-wide ban on industrially produced trans-fatty acids in food in 2004.

Did smokefree legislation in England reduce exposure to secondhand smoke among nonsmoking adults? Cotinine analysis from the Health Survey for England

BACKGROUND

On 1 July 2007, smokefree legislation was implemented in England, which made virtually all enclosed public places and workplaces smokefree.

OBJECTIVES

We examined trends in and predictors of secondhand smoke exposure among nonsmoking adults to determine whether exposure changed after the introduction of smokefree legislation and whether these changes varied by socioeconomic status (SES) and by household smoking status.

METHODS

We analyzed salivary cotinine data from the Health Survey for England that were collected in 7 of 11 annual surveys undertaken between 1998 and 2008. We conducted multivariate regression analyses to examine secondhand smoke exposure as measured by the proportion of nonsmokers with undetectable levels of cotinine and by geometric mean cotinine.

RESULTS

Secondhand smoke exposure was higher among those exposed at home and among lower-SES groups. Exposure declined markedly from 1998 to 2008 (the proportion of participants with undetectable cotinine was 2.9 times higher in the last 6 months of 2008 compared with the first 6 months of 1998 and geometric mean cotinine declined by 80%). We observed a significant fall in exposure after legislation was introduced--the odds of having undetectable cotinine were 1.5 times higher [95% confidence interval (CI): 1.3, 1.8] and geometric mean cotinine fell by 27% (95% CI: 17%, 36%) after adjusting for the prelegislative trend and potential confounders. Significant reductions were not, however, seen in those living in lower-social class households or homes where smoking occurs inside on most days.

CONCLUSIONS

We found that the impact of England's smokefree legislation on secondhand smoke exposure was above and beyond the underlying long-term decline in secondhand smoke exposure and demonstrates the positive effect of the legislation. Nevertheless, some population subgroups appear not to have benefitted significantly from the legislation. This finding suggests that these groups should receive more support to reduce their exposure.

Study of secondhand smoke levels pre and post implementation of the comprehensive smoking ban in mumbai

Objectives:

This research was undertaken with the aim of assessing the indoor air quality in popular hospitality venues, as also to evaluate the effectiveness of the nationwide comprehensive public smoking ban. The analysis was split into two halves – baseline study taken up prior to implementation of the said ban on 2^nd October 2008, and the follow-up study after it came into effect.

Materials and Methods:

Twenty-five venues including five restaurants, fourteen resto-bars, two hookah (smoking water-pipe) cafes and four pubs were selected using a mix of random, convenience and purposeful sampling. Particulate matter (PM_2.5) measurements at these venues were made using TSI SidePak AM510 Personal Aerosol Monitor.

Results:

The average PM_2.5 level in venues where smoking was permitted prior to implementation of ban was found to be 669.95 μg/m³ in the baseline study. Post ban, the average PM_2.5 level in same test venues reduced to 240.8 μg/m³. The hookah cafes were an exception as the average PM_2.5 levels exceeded the permissible limits before as well as post ban.

Conclusion:

The baseline study showed that the hospitality venues had hazardous levels of PM_2.5 particles arising from second-hand smoke prior to smoking ban. These decreased by a maximum of 64% after the law took effect. A substantial improvement in air quality at these venues post implementation of the smoking ban indicated the effectiveness of the law.

Restaurant and bar owners' exposure to secondhand smoke and attitudes regarding smoking bans in five Chinese cities

Despite the great progress made towards smoke-free environments, only 9% of countries worldwide mandate smoke-free restaurants and bars. Smoking was generally not regulated in restaurants and bars in China before 2008. This study was designed to examine the public attitudes towards banning smoking in these places in China. A convenience sample of 814 restaurants and bars was selected in five Chinese cities and all owners of these venues were interviewed in person by questionnaire in 2007. Eighty six percent of current nonsmoking subjects had at least one-day exposure to secondhand smoke (SHS) at work in the past week. Only 51% of subjects knew SHS could cause heart disease. Only 17% and 11% of subjects supported prohibiting smoking completely in restaurants and in bars, respectively, while their support for restricting smoking to designated areas was much higher. Fifty three percent of subjects were willing to prohibit or restrict smoking in their own venues. Of those unwilling to do so, 82% thought smoking bans would reduce revenue, and 63% thought indoor air quality depended on ventilation rather than smoking bans. These results showed that there was support for smoking bans among restaurant or bar owners in China despite some knowledge gaps. To facilitate smoking bans in restaurants and bars, it is important to promote health education on specific hazards of SHS, provide country-specific evidence on smoking bans and hospitality revenues, and disseminate information that restricting smoking and ventilation alone cannot eliminate SHS hazards.

Exposure to fine and ultrafine particles from secondhand smoke in public places before and after the smoking ban, Italy 2005

BACKGROUND

A smoking ban in all indoor public places was enforced in Italy on 10 January 2005.

METHODS

We compared indoor air quality before and after the smoking ban by monitoring the indoor concentrations of fine (<2.5 microm diameter, PM2.5) and ultrafine particulate matter (<0.1 microm diameter, UFP). PM2.5 and ultrafine particles were measured in 40 public places (14 bars, six fast food restaurants, eight restaurants, six game rooms, six pubs) in Rome, before and after the introduction of the law banning smoking (after 3 and 12 months). Measurements were taken using real time particle monitors (DustTRAK Mod. 8520 TSI; Ultra-fine Particles Counter-TRAK Model 8525 TSI). The PM2.5 data were scaled using a correction equation derived from a comparison with the reference method (gravimetric measurement). The study was completed by measuring urinary cotinine, and pre-law and post-law enforcement among non-smoking employees at these establishments

RESULTS

In the post-law period, PM2.5 decreased significantly from a mean concentration of 119.3 microg/m3 to 38.2 microg/m3 after 3 months (p<0.005), and then to 43.3 microg/m3 a year later (p<0.01). The UFP concentrations also decreased significantly from 76,956 particles/cm3 to 38,079 particles/cm3 (p<0.0001) and then to 51,692 particles/cm3 (p<0.01). Similarly, the concentration of urinary cotinine among non-smoking workers decreased from 17.8 ng/ml to 5.5 ng/ml (p<0.0001) and then to 3.7 ng/ml (p<0.0001).

CONCLUSION

The application of the smoking ban led to a considerable reduction in the exposure to indoor fine and ultrafine particles in hospitality venues, confirmed by a contemporaneous reduction of urinary cotinine.