Barriers and Enablers to Implementing a Smoke-free Home and Car During Pregnancy: A Qualitative Study Among Expectant Israeli Fathers.

INTRODUCTION: Secondhand smoke exposure during pregnancy is a significant cause of negative health effects. This study aims to identify barriers and facilitators for implementing a smoke-free home and car among expectant Israeli fathers. AIMS AND METHODS: Twenty-four qualitative semistructured telephone interviews were audio-recorded, transcribed, and analyzed according to a reflexive and collaborative thematic approach. Inclusion criteria were being male, Hebrew speaker, age ≥18 years, smoking at least one cigarette a day, and living with their nonsmoking pregnant spouse. The Capability, Opportunity and Motivation for Behavior (COM-B) model was used as a theoretical model for analysis. RESULTS: Participants reported feeling a strong responsibility for their pregnant spouse's comfort and health, stating that they are doing the best they can to reduce their spouse's secondhand smoke exposure (Motivation). Participants had a low level of knowledge about specific secondhand smoke health consequences, effective strategies to reduce secondhand smoke exposure, with incorrect perceptions about what constitutes exposure (Capability). Couple relationships were not affected by the husband's smoking habits, and participants expressed mutual consideration and understanding (Opportunity). Participants also expressed positive attitudes regarding smoke-free home and car implementation but emphasized that any changes have to be their own decision (Motivation). CONCLUSIONS: The present study identified principal Capability, Opportunity and Motivation barriers and facilitators that influence Israeli expectant fathers' decision to implement a smoke-free home and car. Those findings will inform the development of a digital behavioral intervention targeting expectant fathers to reduce prenatal secondhand smoke exposure. IMPLICATIONS: Secondhand smoke exposure during pregnancy is a significant cause of negative health effects. Interventions among expectant fathers that focus on creating a smoke-free home and car may be effective because pregnancy has been identified as a "window of opportunity" that generates a strong motivation and creates a sense of urgency to change smoking behavior, while being considered more achievable than smoking cessation. Interventions might be effective if they focus on strengthening the parental responsibility among expectant fathers and emphasize the benefits of a smoke-free home and car, while maintaining male autonomy and increasing skills to effectively implement a smoke-free home and car.

Association Between Secondhand Smoke Exposure Among Women and the Implementation of Tobacco Control Measures on Campus: A Cross-Sectional Study in 50 Universities Across China.

INTRODUCTION: Exposure to secondhand smoke (SHS) among women is prevalent in China which increases their risk of developing a wide range of diseases and can affect their susceptibility to adverse reproductive health effects. This study aims to examine the association between SHS exposure among women and the adoption and implementation of tobacco control measures on campus in China. AIMS AND METHODS: 7469 female college students who have never smoked were recruited from 50 universities across China using a multistage sampling technique. All participants reported their exposure to SHS and the tobacco advertising and promotion on campus. Participants from colleges with smoke-free policies reported the implementation of smoke-free policies on campus measured by: (1) no evidence of smoking and (2) the display of smoke-free signs in public places. Multivariate logistic regression models were applied using weighted survey data. RESULTS: SHS exposure among participants was 50.5% (95% CI = 44.2% to 56.9%). The adoption of a smoke-free policy was not associated with SHS exposure (OR: 1.01, 95% CI = .71, 1.42), however, the implementation of the policy was significantly negatively associated with SHS exposure (OR: 0.56, 95% CI = .47 to 0.67). In addition, tobacco advertising and promotion on campus were significantly positively associated with SHS exposure (OR: 2.33, 95% CI = 1.42, 3.82; OR: 1.52; 95% CI = 1.15, 2.02, respectively). CONCLUSIONS: Exposure to SHS is prevalent among female college students in China. Successful implementation of a smoke-free policy and banning tobacco advertising and promotion on campus could be effective measures to protect young women from the harms of SHS in China. IMPLICATIONS: Approximately half of female college students are exposed to SHS on campus in China. Failure to implement smoke-free policies and exposure to tobacco marketing on campus are associated with higher SHS exposure. To protect millions of young Chinese women from the health harms of SHS, universities need to enact and enforce smoke-free policies within campus boundaries and adopt comprehensive bans on tobacco advertising and promotion on campus.

Smoke-free law compliance and predictive factors in Ethiopia: observational assessment of public places and workplaces.

OBJECTIVES: The primary objective of this observational study was to assess the status of public place and workplace compliance with smoke-free provisions in Ethiopia. METHODS: This study was conducted in four regions of Ethiopia (Oromia; Sidama; Harari; and Southern Nations, Nationalities, and Peoples' Region) from September to October 2021. Data were collected using a standardised smoke-free checklist. Χ2 tests were used to assess the association between categorical variables and the smoke-free status. Multivariable binary logistic regression analysis was used to identify factors associated with the presence of at least one person actively smoking. RESULTS: Approximately 97% (95% CI 93.1%, 98.8%) of government buildings, 92.5% (95% CI 85.7%, 96.2%) of educational institutions, 89.8% (95% CI 86.3%, 92.5%) of bars, restaurants and cafés, 88.4% (95% CI 82.9%, 92.3%) of food establishments and 84.0% of hotels (95% CI 79.5%, 87.6%) were non-compliant with the tobacco control law. Overall, only 12.3% of sites met the requirements of the current smoke-free law. The multivariable logistic regression models showed that transit facilities (adjusted OR (AOR)=26.66 (95% CI 7.53, 94.41)) and being located in the Harari region (AOR=4.14 (95% CI 2.30, 7.45)) were strongly associated with the presence of active smoking observed during the site visit. CONCLUSION: This study indicated that public place and workplace non-compliance level was very high in all sites. This calls for more effective implementation of complete smoke-free provisions across all government buildings and institutions in all regions, such as public educational campaigns about the laws and enforcement action for non-compliance. Furthermore, all regional states should adopt Federal Proclamation 1112/2019.

A systematic review of second-hand smoking mass media campaigns (2002-2022).

BACKGROUND: Second-hand smoking (SHS) increases the risk of chronic disease in adults and poses a serious health threat to children. Mass media campaigns are instrumental in raising awareness and reducing SHS exposure. There is a need to identify recent SHS mass media campaigns and assess their sustainability in terms of knowledge, attitudes, and behavioural changes. This systematic review summarises the characteristics and outcomes of mass media campaigns on SHS prevention. METHODS: PubMed, Embase, Web of Science, and grey literature were searched in November 2022 for SHS campaigns implemented between 2016 and 2022. The eligibility criteria included campaigns on the dangers or effects of SHS with any target group, dissemination medium, study design, or language. The database search identified 1,413 peer-reviewed titles, of which 82 full-texts were screened, with 14 meeting the eligibility criteria. The grey literature search identified 9,807 sources, of which 61 were included. We extracted data on the campaign characteristics, metrics, and smoking-related outcomes. The JBI critical appraisal tool was used to assess the risk of bias of the included studies. RESULTS: We found 73 SHS campaigns conducted between 2002 and 2022, across 50 countries. The campaigns reached 378 million people. The reported recall rates range from 8 to 76%. Of the 11 studies that reported smoking-related outcomes, 10 reported increased knowledge in understanding SHS risks (73-85%), five reported an increased prevalence of smoke-free homes, and two reported an increase in number of participants persuading others to quit smoking. Two studies reported a decrease in overall smoking, whereas three studies observed a reduction in smoking in the presence of children. CONCLUSION: The available data provide some support for the effectiveness of SHS campaigns in reducing smoking behaviours in homes and around children. However, the certainty of evidence was low due to the lack of a control group and the substantial heterogeneity in the outcomes assessed. Future campaigns need comprehensive evaluation and reporting to reduce publication bias.

The crossroads of work and home: linkages between smoke-free policies at work and household environments.

BACKGROUND: Tobacco use causes over eight million global deaths annually, with seven million directly attributed to tobacco use and 1.2 million to second hand smoke (SHS). Smoke-free environments are crucial to counter SHS. Although India banned smoking in public places in 2008, SHS exposure remains high. Studies have noted that limiting smoking in workplaces, restaurants, etc., helps to reduce overall smoking and reduce SHS exposure. Under this background, the study explores the linkages between smoke-free workplaces and living in smoke-free homes in India. METHODS: The two rounds of the GATS India (2009-10 and 2016-17) have been used for the study. The study focuses on male tobacco smokers working indoors or outdoors or both indoors and outdoors. The sample for the study was 2,969 for GATS 1 and 2,801 for GATS 2. Dependent variables include living in a smoke-free home, while the independent variables were adherence to a smoke-free office policy and socio-demographic variables. The two rounds of the GATS data were pooled for analysis. Statistical analysis involves bivariate and multivariate analysis. RESULTS: Findings reveal that 41% of respondents worked in smoke-free workplaces in GATS 2. Nationally, smoke-free homes increased from 35% in 2009-2010 to 44% in 2016-17. Individuals with smoke-free workplaces were more likely to have smoke-free homes. The Southern region consistently exhibited the highest proportion of smoke-free homes. Urban areas and higher education correlated with increased smoke-free homes. Logistic regression analysis confirmed that workplace smoke-free status is a significant predictor of smoke-free homes. In GATS 2, respondents aged 30 years and above were less likely to have smoke-free homes, while education and Southern region residence positively influenced smoke-free homes. CONCLUSIONS: The correlation between smoke-free workplaces and smoke-free homes is linked to stringent workplace no-smoking policies, potentially deterring individuals from smoking at home. Opportunities exist for the expansion and stringent implementation of the smoke-free policies among Indian working adults, leveraging the workplace as a key setting for evidence-based tobacco control. The study highlights positive trends in India's smoke-free homes, crediting workplace policies. Effective policies, education, and regional strategies can advance smoke-free homes, stressing the pivotal role of workplace policies and advocating broader implementation.

Examining the creation of synergy in community coalitions for smoke-free environments in Armenia and Georgia.

Community coalitions depend on their members to synergistically pool diverse resources, including knowledge and expertise, community connections and varied perspectives, to identify and implement strategies and make progress toward community health improvement. Several coalition theories suggest synergy is the key mechanism driving coalition effectiveness. The Community Coalition Action Theory (CCAT) asserts that synergy depends on how well coalitions engage their members and leverage their resources, which is influenced by coalition processes, member participation and satisfaction and benefits outweighing costs. The current study used mixed methods, including coalition member surveys (n = 83) and semi-structured interviews with leaders and members (n = 42), to examine the process of creating collaborative synergy in 14 community coalitions for smoke-free environments in Armenia and Georgia. Members, typically seven per coalition representing education, public health, health care and municipal administration sectors, spent an average of 16 hr/month on coalition-related work. Common benefits included making the community a better place to live and learning more about tobacco control. The greatest cost was attending meetings or events at inconvenient times. Members contributed various resources, including their connections and influence, skills and expertise and access to population groups and settings. Strong coalition processes, greater benefits and fewer costs of participation and satisfaction were correlated with leveraging of member resources, which in turn, was highly correlated with collaborative synergy. Consistent with CCAT, effective coalition processes created a positive climate where membership benefits outweighed costs, and members contributed their resources in a way that created collaborative synergy.

A Matched Analysis of the Association Between Federally Mandated Smoke-Free Housing Policies and Health Outcomes Among Medicaid-Enrolled Children in Subsidized Housing, New York City, 2015-2019.

Smoke-free housing policies are intended to reduce the deleterious health effects of secondhand smoke exposure, but there is limited evidence regarding their health impacts. We examined associations between implementation of a federal smoke-free housing rule by the New York City Housing Authority (NYCHA) and pediatric Medicaid claims for asthma, lower respiratory tract infections, and upper respiratory tract infections in the early post-policy intervention period. We used geocoded address data to match children living in tax lots with NYCHA buildings (exposed to the policy) to children living in lots with other subsidized housing (unexposed to the policy). We constructed longitudinal difference-in-differences models to assess relative changes in monthly rates of claims between November 1, 2015, and December 31, 2019 (the policy was introduced on July 30, 2018). We also examined effect modification by baseline age group (≤2, 3-6, or 7-15 years). In New York City, introduction of a smoke-free policy was not associated with lower rates of Medicaid claims for any outcomes in the early postpolicy period. Exposure to the smoke-free policy was associated with slightly higher than expected rates of outpatient upper respiratory tract infection claims (incidence rate ratio = 1.05, 95% confidence interval: 1.01, 1.08), a result most pronounced among children aged 3-6 years. Ongoing monitoring is essential to understanding long-term health impacts of smoke-free housing policies.

Invited Commentary: Use of Epidemiologic Methods to Guide Comprehensive and Equitable Approaches to Policy.

Despite a dramatic reduction in the prevalence of commercial cigarette smoking in the United States, children are still commonly exposed to secondhand smoke (SHS), which is a cause of various pediatric health problems. Further, SHS exposure is patterned by race and class, exacting an inequitable toll on children from families with lesser social and economic advantage. In this issue of the Journal, Titus et al. (Am J Epidemiol. 2023;192(1):25-33) use natural experiment evaluation methods (difference-in-differences) to test whether the recently implemented US Department of Housing and Urban Development policy that forbade smoking in and around New York City Housing Authority buildings affected child respiratory health. The results from their work remind us that policies do not always impact outcomes as we might expect. Given that policy is one of the most potent tools for population health promotion, this work underlines the need for epidemiologists to engage in policy evaluation at all stages of the policy life cycle, in order to discover comprehensive approaches to policy development and implementation that prioritize equity and address structural racism.

Nationwide indoor smoking ban and impact on smoking behaviour and lung function: a two-population natural experiment.

INTRODUCTION: Many countries have implemented indoor smoking bans over the past two decades. Although smoking bans have been shown to reduce cardiovascular outcomes, little is known about their impact on respiratory health. This study investigated the impact of a nationwide indoor smoking ban on smoking behaviour and lung function. METHODS: We used repeated cross-sectional data from two large cohorts of the general population comprising 31 807 Swiss and 62 093 Danish adults. We compared associations between smoking ban and smoking prevalence and prebronchodilator lung function trends in Denmark (indoor smoking ban introduced in 2007) and Switzerland (indoor smoking ban introduced in 2010) from 2005 to 2010 using a quasi-experimental study design. We performed difference-in-difference analyses with linear regression models adjusted for age, sex, weight and height. RESULTS: Denmark had a stronger decrease in active smokers compared with Switzerland. Also, forced expiratory volume in the first second was higher in Danish adults than in Swiss adults: 26 mL (95% CI 2.4 to 49) 1 year, 88 mL (65 to 112) 2 years, and 74 mL (51 to 98) 3 years after smoking ban implementation. Correspondingly, forced vital capacity was higher in Danish adults compared with Swiss adults (80 mL (50 to 109) after 1 year and 126 mL (97 to 155) after two and 3 years). Improvements were observed in both never-smokers and ever-smokers, most pronounced in ever-smokers. CONCLUSIONS: Nationwide indoor smoking ban is associated with less smoking and improved lung function in the general population. Implementing an indoor smoking ban can improve lung function by influencing smoking behaviour and reducing secondhand smoke.

Outdoor smoke-free policies at sports clubs across Europe: Current status, recent evidence, and future challenges.

OBJECTIVE: This commentary emphasizes the importance of implementing outdoor smoke-free policies at sports clubs, particularly highlighting their limited adoption across Europe. The primary aim was to assess the progress made in the Netherlands, explore the strategies employed, and outline future challenges. METHODS: Our methodology involved an examination of national regulations and the voluntary adoption of smoke-free policies at sports clubs throughout Europe. We also assessed the adoption and implementation of these policies using recent evidence, leading to the identification of impending challenges in their implementation across Europe. RESULTS: While only a few European countries currently have national legislation prohibiting outdoor smoking at sports clubs, voluntary initiatives promoting such policies have emerged in various nations. Experiences from the Netherlands have demonstrated the feasibility of implementing outdoor smoke-free policies at sports clubs. To expand these policies across Europe, five key challenges need to be addressed: 1) encouraging smoke-free policies at sports clubs that are less inclined to adopt them, 2) ensuring consistent compliance and enforcement of outdoor smoke-free policies, 3) preventing smoking just outside the sports club, 4) garnering support from various stakeholders to ensure widespread adoption of smoke-free sports clubs, and 5) establishing monitoring and evaluation mechanisms for policy implementation. CONCLUSION: The Dutch experiences serve as a testimony to the feasibility of outdoor smoke-free policies at sports clubs. By addressing the remaining challenges, we can create healthier sports environments for children and take substantial steps towards realizing a smoke-free Europe.

Randomized clinical trial examining financial incentives for smoking cessation among mothers of young children and possible impacts on child secondhand smoke exposure.

This randomized clinical trial examined whether financial-incentives increase smoking cessation among mothers of young children and potential impacts on child secondhand-smoke exposure (SHSe). 198 women-child dyads were enrolled and assigned to one of three treatment conditions: best practices (BP, N = 68), best practices plus financial incentives (BP + FI, N = 63), or best practices, financial incentives, and nicotine replacement therapy (BP + FI + NRT, N = 67). The trial was completed in Vermont, USA between June 2015 and October 2020. BP entailed staff referral to the state tobacco quitline; financial incentives entailed mothers earning vouchers exchangeable for retail items for 12 weeks contingent on biochemically-verified smoking abstinence; NRT involved mothers receiving 10 weeks of free transdermal nicotine and nicotine lozenges/gum. Baseline, 6-, 12-, 24-, and 48-week assessments were conducted. Primary outcomes were maternal 7-day point-prevalence abstinence and child SHSe through the 24-week assessment with the 48-week assessment exploratory. Results were analyzed using mixed model repeated measures for categorical data. Odds of maternal abstinence were greater among mothers in BP + FI and BP + FI + NRT compared to BP at the 6- and 12-week assessments (ORs ≥ 7.30; 95% CIs: 2.35-22.71); only abstinence in BP + FI remained greater than BP at the 24-week assessment (OR = 2.95; 95% CIs: 1.06-8.25). Abstinence did not differ significantly between treatment conditions at the 48-week assesssment. There was a significant effect of treatment condition (F[2109] = 3.64, P = .029) on SHSe with levels in BP and BP + FI significantly below BP + FI + NRT (ts[109] ≥ -2.30, Ps ≤ 0.023). Financial incentives for smoking abstinence are efficacious for increasing maternal cessation but that alone was insufficient for reducing child SHSe. ClinicalTrials.gov:NCT05740098.

Knowledge, Beliefs, and Behaviors Related to Secondhand Smoke and Smoking in the Home: A Qualitative Study With Men in Malaysia.

INTRODUCTION: Despite the health risks associated with secondhand smoke (SHS) exposure, smoking in the home is common in Malaysia, and almost exclusively a male behavior. AIMS AND METHODS: This study explored male smokers' knowledge, beliefs, and behaviors related to SHS exposure and smoking in the home, to guide future intervention development. Twenty-four men who smoked and lived in Klang Valley, Kuantan, or Kuala Terengganu took part in semi-structured interviews which explored knowledge and beliefs regarding SHS in the home, and associated home-smoking behaviors. Data were managed and analyzed using the framework approach. RESULTS: There was limited knowledge regarding the health risks associated with SHS: the smell of SHS in the home was a more prominent concern in most cases. Many had no rules in place restricting home smoking, and some suggested that smoking in specific rooms and/or near windows meant SHS was not "shared" with other household members. A few fathers had created but not maintained a smoke-free home prior to and/or after their children were born. Desire to smoke in the home conflicted with men's sense of responsibility as the head of the household to protect others and set a good example for their children. CONCLUSIONS: Men's home-smoking behaviors are shaped by a lack of understanding of the health risks associated with SHS exposure. Gaining a broader understanding of the factors that shape men's decisions to create a smoke-free home is important to facilitate the development of culturally appropriate interventions that address their responsibility to protect other household members from SHS exposure. IMPLICATIONS: Our findings highlight the need for public information campaigns in Malaysia to educate men who smoke regarding the health harms associated with SHS in the home and the ways in which SHS travels and lingers in household air. This is important given men's concerns about SHS often focus on the smell of cigarette smoke in the home. Our findings suggest a number of potential avenues for future intervention development, including household and community-level initiatives that could build on men's sense of responsibility as the head of the household and/or their general desire to protect their families.

The Impact of the Danish National Smoking Ban From 2007 on the Incidence of Eight Smoking-related Diseases: A Nationwide Register-based Interrupted Time Series Analysis.

BACKGROUND: Previous research has documented the effect of comprehensive smoking bans on preventing various adverse health outcomes in the years post-ban. In 2007, Denmark implemented a national smoking ban that prohibited indoor smoking in workplaces and public settings, although only partial restrictions applied in specific premises such as small bars, one-person offices, and in psychiatric units. We tested the hypothesis that the implementation of the national smoking ban was associated with a decrease in incidence of smoking-related morbidity in the Danish population compared to the pre-ban period. METHODS: Interrupted time series analyses including the entire Danish population (≥30 years) was conducted. Information of hospitalizations and cause-specific mortality due to acute myocardial infarction, heart failure, hemorrhagic stroke, ischemic stroke, chronic obstructive pulmonary disease, cancer in bronchus and lung, cancer in lip, mouth, oral cavity, and pharynx, and bladder cancer were obtained from population-based registers. Poisson regression models accounting for seasonal variations and secular trends quantified immediate changes in incidence rates occurring at the time of the smoking ban as well as changes in the post-ban trend compared to pre-ban levels. RESULTS: Overall, we observed no consistent declines in incidence of cardiovascular diseases, chronic obstructive pulmonary disease, or the specific types of cancer in the post-ban period compared with the pre-ban period. CONCLUSION: No consistent reduction in incidence of smoking-related diseases was observed after the smoking ban was introduced in Denmark. This probably reflects that the Danish smoking ban included several exemptions, resulting in a less comprehensive ban compared to those introduced in other countries. IMPLICATIONS: In this study, we found that the Danish national smoking ban from 2007 did not consistently reduced the incidence of eight smoking-related outcomes in the post-ban period compared to pre-ban levels. We argue that due to the exemptions in the smoking ban, which for example allowed smoking in specific premises of the care and nursing sector, in one-person offices, and small bars, the ban was not sufficiently comprehensive to influence smoking behavior and thereof the incidence of smoking-related morbidity. Our findings highlight the importance of introducing comprehensive legislative measures to yield largest health benefits at a population level.

Passive Smoking and Oral Health of Infants, Preschoolers, and Children: A Systematic Review.

INTRODUCTION: Almost half of the world's children experience passive smoking, which is linked to numerous oral health conditions. The aim is to synthesize data on the impact of passive smoking on oral health of infants, preschoolers, and children. AIMS AND METHODS: A search was conducted across Medline (via EBSCOhost), PubMed, and Scopus up to February 2023. Risk of bias was assessed according to the Newcastle-Ottawa Scale (NOS). RESULTS: The initial search produced 1221 records and after removal of duplicates, screening by title and abstract, and full-text assessment, 25 studies were eligible for review and data extraction. The majority of studies (94.4%) found a correlation between passive smoking and increased prevalence of dental caries with three studies suggesting a dose-response relationship. Prenatal passive smoking exposure in 81.8% of studies indicated an increased dental caries experience compared to postnatal exposure. Low parental education, socioeconomic status, dietary habits, oral hygiene, and gender affected the level of environmental tobacco smoke (ETS) exposure and dental caries risk. CONCLUSIONS: The results of this systematic review strongly suggest a significant association between dental caries in the deciduous dentition and passive smoking. Early intervention and education on the effects of passive smoking on infants and children will allow for the improvement in oral health outcomes and reduction in smoking-associated systemic conditions. The results justify all health professionals paying more attention to passive smoking when conducting pediatric patient histories, contributing to improved diagnosis and appropriate treatment planning with more suitable follow-up schedules. IMPLICATIONS: The evidence from this review that environmental tobacco smoke and passive smoking is a risk factor for oral health conditions, both prenatally and postnatally during early childhood, justifies all health professionals paying more attention to passive smoking when conducting pediatric patient histories. Early intervention and appropriate parental education regarding the effects of secondhand smoke on infants and children will allow for the minimization of dental caries, improvement in oral health outcomes and overall reduction in smoking-associated systemic conditions for the children exposed.

Circumventing tobacco control and safety policies to promote waterpipe use in smoking venues: the perspective of staff in waterpipe smoking venues.

OBJECTIVE: To understand Hong Kong waterpipe smoking (WPS) sales and promotion, including strategies to avoid policy enforcement, from the perspective of WPS venue staff. METHODS: Qualitative interviews and observations were guided by interpretive description. 20 WPS venue staff who were responsible for preparing and serving waterpipes to patrons and had worked at the bar for at least 3 months were recruited. In-depth semistructured interviews with WPS venue staff were conducted, in addition to covert and participant observations in 10 WPS venues in Hong Kong. Interpretive description involving constant comparative analysis of qualitative data was adopted to facilitate an inductive analytic approach to generate findings. RESULTS: Two primary themes emerged from analyses of interview and observation data: strategies to avoid law enforcement, and perceived health and safety concerns linked to working and smoking in waterpipe venues. The findings suggest that many Hong Kong venues may be failing to comply with tobacco control policies and developing strategies to circumvent law enforcement. Moreover, waterpipe preparation, allowance of WPS and burning of charcoal in indoor areas were perceived as negatively affecting the health and safety of staff and customers. CONCLUSIONS: The study provides preliminary evidence indicating the ineffectiveness of current tobacco control policy on WPS. Due to its risks to health and safety, and the need to sustain tobacco control efforts for their intended purpose, waterpipe-specific regulations and stricter surveillance on waterpipe sales and promotion are urgently required.

Perceived effectiveness of four different cigarette health warning label themes among a sample of urban smokers and non-smokers in China.

OBJECTIVE: This study, conducted in China, evaluated the effectiveness of four different themes of health warning labels (HWLs) that used both text and pictures: (1) self-harm from using cigarettes, (2) harming family or children with secondhand smoke, (3) reinforcing compliance with existing smoke-free policies and (4) anticigarette gift giving practices. METHODS: A cross-sectional randomised experimental survey was conducted among 3247 adult (aged 18+ years) participants in Beijing, Shanghai and Shenzhen in 2017, using quotas for age group, gender and smoking status. Participants were randomly assigned to one of the four HWL themes. Each participant viewed eight HWLs and rated how effective these themed-labels were in terms of credibility, raising awareness of health harms of smoking on family and children, improving compliance with public smoking bans, stopping the practice of gifting cigarettes, thinking about quitting and preventing smoking using a 10-point scale, with 10 being most effective. Analysis of variance and independent t-tests were used to analyse these data. FINDINGS: All four HWL themes performed well for each outcome with average ratings >6.5. Harming family or children with secondhand smoke was the theme that received the highest ratings for each outcome, with credibility (8.0, 95% CI 7.86 to 8.09) and prevention of smoking (8.8, 95% CI 8.63 to 8.91) outcomes being significantly higher (p<0.05). Overall, analysis of ratings by gender, income and education did not impact outcomes. CONCLUSION: All four HWL themes tested could be effective in China; the theme of secondhand smoke harming family or children may be a particularly credible/effective theme.

Implementation of a national smoke-free prison policy: an economic evaluation within the Tobacco in Prisons (TIPs) study.

OBJECTIVE: To determine the cost-effectiveness of a smoke-free prison policy in Scotland, through assessments of the trade-offs between costs (healthcare and non-healthcare-related expenditure) and outcomes (health and non-health-related non-monetary consequences) of implementing the policy. DESIGN: A health economic evaluation consisting of three analyses (cost-consequence, cost-effectiveness and cost-utility), from the perspectives of the healthcare payer, prison service, people in custody and operational staff, assessed the trade-offs between costs and outcomes. Costs associated with the implementation of the policy, healthcare resource use and personal spend on nicotine products were considered, alongside health and non-health outcomes. The cost-effectiveness of the policy was evaluated over 12-month and lifetime horizons (short term and long term). SETTING: Scotland's national prison estate. PARTICIPANTS: People in custody and operational prison staff. INTERVENTION: Implementation of a comprehensive (indoor and outdoor) smoke-free policy. MAIN OUTCOME MEASURES: Concentration of secondhand smoke, health-related quality of life (health utilities and quality-adjusted life-years (QALY)) and various non-health outcomes (eg, incidents of assaults and fires). RESULTS: The short-term analyses suggest cost savings for people in custody and staff, improvements in concentration of secondhand smoke, with no consistent direction of change across other outcomes. The long-term analysis demonstrated that implementing smoke-free policy was cost-effective over a lifetime for people in custody and staff, with approximate cost savings of £28 000 and £450, respectively, and improvement in health-related quality of life of 0.971 QALYs and 0.262, respectively. CONCLUSION: Implementing a smoke-free prison policy is cost-effective over the short term and long term for people in custody and staff.

Effects of electronic cigarettes and hookah (waterpipe) use on home air quality.

INTRODUCTION: A major site of secondhand smoke exposure for children and adults is the home. Few studies have evaluated the impact of e-cigarette or hookah use on home air quality, despite evidence finding toxic chemicals in secondhand e-cigarette aerosols and hookah smoke. We assessed the effect of e-cigarette and hookah use on home air quality and compared it with air quality in homes where cigarettes were smoked and where no smoking or e-cigarette use occurred. METHODS: Non-smoking homes and homes where e-cigarettes, hookah or cigarettes were used were recruited in the New York City area (n=57) from 2015 to 2019. Particulate matter with diameter less than 2.5 µm (PM2.5), black carbon and carbon monoxide (CO) were measured during a smoking or vaping session, both in a 'primary' smoking room and in an adjacent 'secondary' room where no smoking or vaping occurred. Log transformed data were compared with postanalysis of variance Tukey simultaneous tests. RESULTS: Use of hookah significantly increased PM2.5 levels compared with non-smoking homes, in both the primary and secondary rooms, while use of e-cigarettes increased PM2.5 levels only in primary rooms. Additionally, in-home use of hookah resulted in greater CO concentrations than the use of cigarettes in primary rooms. CONCLUSIONS: Use of e-cigarettes or hookah increases air pollution in homes. For hookah, increases in PM2.5 penetrated even into rooms adjacent to where smoking occurs. Extending smoke-free rules inside homes to include e-cigarette and hookah products is needed to protect household members and visitors from passive exposure to harmful aerosols and gases.

Use of nicotine replacement therapy to reduce children's exposure to second-hand smoke in the home: a qualitative pilot study involving local community pharmacies.

BACKGROUND: In Scotland, and in several other countries, most second-hand smoke exposure now occurs in low-income households, where housing constraints and sole parenting often make it harder to create a smoke-free home. This pilot study provided people who smoke with a free 12-week supply of nicotine replacement therapy through local community pharmacies to reduce smoking indoors. METHODS: Twenty-five parents/caregivers who smoked in the home and cared for children at least weekly were recruited via Facebook during the COVID-19 pandemic. Air quality (PM2.5) was monitored in participant homes for seven days before their first pharmacy visit and 12 weeks later. Qualitative interviews (N = 14) were conducted with 13 participants who completed the study and one who withdrew part-way through. The interviews explored views/experiences of using nicotine replacement therapy to help create a smoke-free home. Another participant took part in a shorter telephone discussion at their request, with detailed notes taken by the interviewer, because of their speech disorder. RESULTS: Three participants reported smoking outdoors only, one of whom subsequently quit smoking. Six participants reported reduced cigarette consumption by 50% in the home, four reported no (sustained) reduction and one reported increased smoking indoors. Self-reported outcomes were not always consistent with PM2.5 readings. Participants' experiences of accessing nicotine replacement therapy through community pharmacies varied. Some suggested ongoing support to use nicotine replacement products could better assist behavioural change, and that access could be streamlined by posting products to the home. Several suggested that focusing on changing home smoking behaviours using nicotine replacement therapy might facilitate a future quit attempt. CONCLUSION: Access to free nicotine replacement therapy for temporary use indoors may support some people who smoke to reduce children's exposure to second-hand smoke. Our findings confirm the need to modify the intervention before undertaking a definitive trial to assess the effectiveness of this approach. This work is now underway.