National Health and Medical Research Council statement on electronic cigarettes: 2022 update.

INTRODUCTION: Electronic cigarette (e-cigarette) use in Australia has rapidly increased since the 2017 National Health and Medical Research Council (NHMRC) Chief Executive Officer (CEO) statement on e-cigarettes. The type of products available and the demographic characteristics of people using these products have changed. New evidence has been published and there is growing concern among public health professionals about the increased use, particularly among young people who do not currently smoke combustible cigarettes. The combination of these issues led NHMRC to review the current evidence and provide an updated statement on e-cigarettes. In this article, we describe the comprehensive process used to review the evidence and develop the 2022 NHMRC CEO statement on electronic cigarettes. MAIN RECOMMENDATIONS: E-cigarettes can be harmful; all e-cigarette users are exposed to chemicals and toxins that have the potential to cause adverse health effects. There are no health benefits of using e-cigarettes if you do not currently smoke tobacco cigarettes. Adolescents are more likely to try e-cigarettes if they are exposed to e-cigarettes on social media. Short term e-cigarette use may help some smokers to quit who have been previously unsuccessful with other smoking cessation aids. There are other proven safe and effective options available to help smokers to quit. CHANGES IN MANAGEMENT AS A RESULT OF THIS STATEMENT: The evidence base for the harms of e-cigarette use has strengthened since the previous NHMRC statement. Significant gaps in the evidence base remain, especially about the longer term health harms of using e-cigarettes and the toxicity of many chemicals in e-cigarettes inhaled as an aerosol.

Closing the gaps in tobacco endgame evidence: a scoping review.

OBJECTIVE: Tobacco endgame policies aim to rapidly and permanently reduce smoking to minimal levels. We reviewed evidence syntheses for: (1) endgame policies, (2) evidence gaps, and (3) future research priorities. DATA SOURCES: Guided by JBI scoping review methodology, we searched five databases (PubMed, CINAHL, Scopus, Embase and Web of Science) for evidence syntheses published in English since 1990 on 12 policies, and Google for publications from key national and international organisations. Reference lists of included publications were hand searched. STUDY SELECTION: Two reviewers independently screened titles and abstracts. Inclusion criteria were broad to capture policy impacts (including unintended), feasibility, public and stakeholder acceptability and other aspects of policy implementation. DATA EXTRACTION: We report the results according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews checklist. DATA SYNTHESIS: Eight policies have progressed to evidence synthesis stage (49 publications): mandatory very low nicotine content (VLNC) standard (n=26); product standards to substantially reduce consumer appeal or remove the most toxic products from the market (n=1); moving consumers to reduced risk products (n=8); tobacco-free generation (n=4); ending sales (n=2); sinking lid (n=2); tax increases (n=7); and restrictions on tobacco retailers (n=10). Based on published evidence syntheses, the evidence base was most developed for a VLNC standard, with a wide range of evidence synthesised. CONCLUSIONS: VLNC cigarettes have attracted the most attention, in terms of synthesised evidence. Additional focus on policies that reduce the availability of tobacco is warranted given these measures are being implemented in some jurisdictions.

A qualitative exploration of the provision and prioritisation of smoking cessation support to patient carers in a paediatric ward in Australia.

BACKGROUND: Hospitalisation of a child is a unique opportunity for health staff to offer smoking cessation support; that is screening for carer smoking status, discussing cessation and providing interventions to carers who smoke. This has the potential to reduce the child's exposure to second-hand smoke, and in turn tobacco related illnesses in children. However, these interventions are not always offered in paediatric wards. The aim of this study was to explore the provision and prioritisation of smoking cessation support to patient carers in a paediatric ward with a high proportion of Aboriginal patients and carers in a regional area of Australia's Northern Territory. METHODS: This is a qualitative descriptive study of data collected through semi-structured interviews with 19 health staff. The interviews were audio recorded and transcribed verbatim. Thematic analysis was performed on the transcripts. RESULTS: We found low prioritisation of addressing carer smoking due to, a lack of systems and procedures to screen for smoking and provide quitting advice and unclear systems for providing more detailed cessation support to carers. Staff were demotivated by the lack of clear referral pathways. There were gaps in skills and knowledge, and health staff expressed a need for training opportunities in smoking cessation. CONCLUSION: Health staff perceived they would provide more cessation support if there was a systematic approach with evidence-based resources for smoking cessation. These resources would include guidelines and clinical record systems with screening tools, clear action plans and referral pathways to guide clinical practice. Health staff requested support to identify existing training opportunities on smoking cessation.

Predictors and reasons for quitting smoking in remote Aboriginal and Torres Strait Islander communities.

ISSUE ADDRESSED: National smoking prevalence is decreasing among Aboriginal and Torres Strait Islander people. In remote areas, Aboriginal and Torres Strait Islander smoking prevalence remains higher than in nonremote areas and is not improving. METHODS: We analysed data from 539 daily and weekly smokers from remote areas who completed baseline surveys at either Wave 1 (April 2012-October 2013) or Wave 2 (August 2013-August 2014), including 157 from Wave 1 who also completed Wave 2, from the Talking About The Smokes project. We assessed associations between baseline predictor measures and having made any quit attempt in the past year and, among those who did, having sustained the last quit attempt for one month or more. RESULTS: More smokers had made a quit attempt if they were younger or reported being unable to buy essentials due to money spent on smokes, being more stressed, having several pro-quitting motivations and attitudes, having an effective smoke-free home, or being encouraged to quit by a health professional or by family/friends. Of these, more had sustained their last quit attempt for one month or more if they reported being more socially advantaged, no smoking-induced deprivation, being less dependent, chewing pituri or an having effective smoke-free home. CONCLUSIONS: Health staff should consider the quite different factors associated with starting and then sustaining a quit attempt. SO WHAT?: Our findings support continued attention in remote areas on smoke-free homes and health staff providing regular encouragement to all smokers to quit and more use of smokers' friends and family for support.

Role of organisational factors on uptake and implementation of the B.strong brief intervention training program in Queensland Indigenous primary health care services.

ISSUE ADDRESSED: The B.strong Program was an Indigenous health worker brief intervention (BI) training program delivered in Queensland from 2017-2020. This study examines the organisational factors of participating Indigenous primary health care (PHC) services that impacted on B.strong's uptake and implementation in those services. METHODS: Semi-structured interviews were conducted from 2019-2020 with 20 B.strong Program trainees and four health service managers from eight purposively sampled Queensland PHC services, and one Queensland Department of Health manager, to examine their perceptions of uptake and implementation of the B.strong Program. The Consolidated Framework for Implementation Research was used as a framework for the evaluation. Data analysis was conducted using NVivo 11. RESULTS: Although strong PHC service support was evident for the uptake of face-to-face workshop training, it was not available to support trainees to complete online modules or for ongoing BI delivery to clients. Key organisational factors associated with both program uptake and implementation of BIs in PHC services were leadership engagement and implementation climate. Within these themes, embedding B.strong into operational practices of health services, having policies, processes and consistent administrative support to facilitate implementation, and addressing gaps in knowledge and skills of health workers were identified as needing to be improved. The study identified the lack of application of continuous quality improvement (CQI) processes to BIs at these health services as a barrier to effective implementation. CONCLUSIONS: The study supports the establishment of BI specific CQI initiatives in health services and supports better engagement with organisational leadership in BI training to ensure their ongoing support of both the training and implementation of BI.

Perceived impact of the characteristics of the Indigenous Queensland B.strong brief intervention training program on uptake and implementation.

ISSUE ADDRESSED: Brief interventions (BIs) in primary health care (PHC) settings can be effective in addressing behavioural risk factors of chronic conditions. However, the impact of the characteristics of BI training programs on the uptake of the program and implementation of BIs in Indigenous PHC settings is not fully understood. The B.strong Program was an Indigenous health worker BI training program delivered in Queensland from 2017 to 2020. This study examines the impact of the characteristics of the B.strong Program on its uptake and implementation in PHC settings. METHODS: Semi-structured interviews were conducted in 2019 and 2020 with 20 B.strong Program trainees and four health service managers from eight purposively sampled Queensland PHC services, and one Queensland Department of Health manager, to collect their perceptions of the implementation of the B.strong Program. The Consolidated Framework for Implementation Research guided data collection. RESULTS: Key program characteristics that facilitated both the program uptake and the implementation of BIs were: ensuring the cultural appropriateness of the program from development, to engagement with health services and through to delivery, the applicability of the program to trainees' daily clinical work, program credibility, and its ease of access and availability. Participants preferred face-to-face workshop training for online module training. CONCLUSIONS: Relevance to practice, easy access, program credibility and measures taken to ensure cultural appropriateness of the B.strong Program in development, in engagement stages with health services, and in program delivery facilitated program uptake and implementation of BIs. Online BI training may be of limited value compared to face-to-face training in this setting. SO WHAT?: To enhance participation by Indigenous PHC services in health worker BI training programs and implementation of BIs posttraining by health staff, it is important to ensure the cultural appropriateness of the program's characteristics, and its development, engagement and delivery processes.

Impact of three annual tobacco tax rises on tobacco sales in remote Australian Aboriginal community stores.

BACKGROUND: There is strong evidence from many settings that tobacco tax rises which increase prices reduce tobacco consumption, but only limited evidence from Indigenous settings. METHODS: We analysed 3 years (2016-2018) of weekly sales data from 32 stores in remote Aboriginal communities. We used interrupted time series analysis to estimate the immediate impact of the price rice following annual 12.5% tobacco tax rises on sales on (A) stick equivalents of tobacco and (B) fruit and vegetables (kg) per $A1000 of grocery sales, and on the trend in sales between price rises. RESULTS: We detected 5.8% and 8.2% immediate declines in tobacco sales following the price rises associated with annual 12.5% tax rises in 2016 and 2018, and a non-significant decline (1.6%) following the 2017 tax rise. Decreased sales were mainly driven by declines in mainstream and premium factory-made cigarettes. Fruit and vegetable sales did not change at the time of tobacco price rises. CONCLUSION: For the first time, we demonstrated evidence of price-sensitivity and the immediate impact of price rises from tobacco tax rises on tobacco sales in remote Aboriginal communities. We acknowledge that Australia already has very high tobacco taxation and prices, but recommend further increases to the taxation of roll-your-own (RYO) tobacco to prevent smokers and industry using cheaper RYO cigarettes to undermine this impact of high tobacco taxes and prices.

Policy options for endgame planning in tobacco control: a simulation modelling study.

OBJECTIVE: To investigate the potential impacts of several tobacco control interventions on adult daily smoking prevalence in the Australian state of Queensland, using a system dynamics model codeveloped with local and national stakeholders. METHODS: Eight intervention scenarios were simulated and compared with a reference scenario (business as usual), in which all tobacco control measures currently in place are maintained unchanged until the end of the simulation period (31 December 2037). FINDINGS: Under the business as usual scenario, adult daily smoking prevalence is projected to decline from 11.8% in 2017 to 5.58% in 2037. A sustained 50% increase in antismoking advertising exposure from 2018 reduces projected prevalence in 2037 by 0.80 percentage points. Similar reductions are projected with the introduction of tobacco wholesaler and retailer licensing schemes that either permit or prohibit tobacco sales by alcohol-licensed venues (0.65 and 1.73 percentage points, respectively). Increasing the minimum age of legal supply of tobacco products substantially reduces adolescent initiation, but has minimal impact on smoking prevalence in the adult population over the simulation period. Sustained reductions in antismoking advertising exposure of 50% and 100% from 2018 increase projected adult daily smoking prevalence in 2037 by 0.88 and 1.98 percentage points, respectively. CONCLUSIONS: These results suggest that any prudent approach to endgame planning should seek to build on rather than replace existing tobacco control measures that have proved effective to date. Additional interventions that can promote cessation are expected to be more successful in reducing smoking prevalence than interventions focussing exclusively on preventing initiation.

Factors Influencing Smoking Among Indigenous Adolescents Aged 10-24 Years Living in Australia, New Zealand, Canada, and the United States: A Systematic Review.

INTRODUCTION: Smoking rates are higher among Indigenous populations in most high-income countries with initiation primarily occurring in adolescence for all population groups. This review aims to identify protective and risk factors for smoking behavior among Indigenous adolescents and young adults. AIMS AND METHODS: We searched Medline, Embase, and Psychinfo for all original research published between January 2006 and December 2016 that reported influences on smoking for Indigenous adolescents or young adults aged 10-24 living in Australia, New Zealand, Canada, and the United States (US). Extracted data were coded to individual, social, and environmental level categories using a modified Theory of Triadic Influence framework. RESULTS: A total of 55 studies were included, 41 were descriptive quantitative and 14 qualitative, and 26 included Indigenous participants only. The majority were from the US (32). Frequently reported influences were at the individual and social levels such as increasing age; attitudes and knowledge; substance use; peer and family relationships; smoking norms; mental health; physical activity. At the environmental level, smoke-free spaces; second-hand smoke exposure; high community level prevalence; and social marketing campaigns were also frequently reported. Some studies referenced price, access, and traditional tobacco use. Few reported historical and cultural factors. CONCLUSIONS: Young Indigenous people experience similar influences to other populations such as smoking among family and friends. Greater youth smoking is related to broader community level prevalence, but few studies explore the distal or historical contributing factors such as traditional tobacco use, colonization, experiences of intergenerational trauma and discrimination, or the role of cultural connection. IMPLICATIONS: This review identified a range of factors that influence Indigenous youth smoking and contributes to an understanding of what prevention measures may be effective. Youth tobacco use occurs alongside other substance use and may also serve as an indicator of mental health. Comprehensive community-based programs that work more broadly to address the risk factors related to tobacco, including improving youth mental health, will be important for other behaviors as well. This research highlights the importance of social influence and need for ongoing denormalization of smoking. Future Indigenous led and community owned research is needed to identify likely protective cultural factors.

Facebook-Based Social Marketing to Reduce Smoking in Australia's First Nations Communities: An Analysis of Reach, Shares, and Likes.

BACKGROUND: Facebook is widely used by Australia's First Nations people and has significant potential to promote health. However, evidence-based guidelines for its use in health promotion are lacking. Smoking prevalence among Australia's First Nations people is nearly 3 times higher than other Australians. Locally designed programs in Aboriginal Community Controlled Health Services (ACCHOs) to reduce smoking often use Facebook. OBJECTIVE: This study reports on an analysis of the reach and engagement of Facebook posts with smoking prevention and cessation messages posted by ACCHOs in the Northern Territory, Australia. METHODS: Each service posted tobacco control content at least weekly for approximately 6 months. Posts were coded for the following variables: service posted, tailored First Nations Australian content, local or nonlocally produced content, video or nonvideo, communication technique, and emotional appeal. The overall reach, shares, and reactions were calculated. RESULTS: Compared with posts developed by the health services, posts with content created by other sources had greater reach (adjusted incident rate ratio [IRR] 1.92, 95% CI 1.03-3.59). Similarly, reactions to posts (IRR 1.89, 95% CI 1.40-2.56) and shared posts (IRR 2.17, 95% CI 1.31-3.61) with content created by other sources also had more reactions, after controlling for reach, as did posts with local First Nations content compared with posts with no First Nations content (IRR 1.71, 95% CI 1.21-2.34). CONCLUSIONS: Facebook posts with nonlocally produced content can be an important component of a social media campaign run by local health organizations. With the exception of nonlocally produced content, we did not find a definitive set of characteristics that were clearly associated with reach, shares, and reactions. Beyond reach, shares, and likes, further research is needed to understand the extent that social media content can influence health behavior.

Electronic Cigarette Use and Understanding Among a National Sample of Australian Aboriginal and Torres Strait Islander Smokers.

INTRODUCTION: Adult daily smoking prevalence in the Aboriginal and Torres Strait Islander population is 2.8 times that of other Australians. There is little data on prevalence of electronic cigarette (e-cigarette) use among Aboriginal and Torres Strait Islander peoples. We measured e-cigarette use and beliefs about their harmfulness in national samples of Aboriginal and Torres Strait Islander smokers and of all Australian smokers. METHODS: The Talking About the Smokes project interviewed a nationally representative quota sample of 1301 Aboriginal and Torres Strait Islander smokers between August 2013 and August 2014. The Australian Wave 9 survey of the long-running International Tobacco Control Project interviewed 1093 smokers between February and May 2013. Estimates for all Australian smokers were standardized to the age and sex distribution of Aboriginal and Torres Strait Islander smokers. RESULTS: Fewer Aboriginal and Torres Strait Islander than all Australian smokers had tried an e-cigarette (21% vs. 30%). This was in part because of more Aboriginal and Torres Strait Islander smokers having not heard of e-cigarettes. Fewer Aboriginal and Torres Strait Islander smokers than all Australian smokers agreed that e-cigarettes are less harmful than conventional cigarettes (22% vs. 50%). CONCLUSIONS: Many Aboriginal and Torres Strait Islander smokers have used e-cigarettes. However, there is considerable misunderstanding about the relative harm of e-cigarettes compared with conventional cigarettes, in part because of the tight regulatory environment in Australia. IMPLICATIONS: The study describes e-cigarette use and understanding in national samples of Aboriginal and Torres Strait Islander smokers and of all Australian smokers. Only small studies have reported on e-cigarette use in this high smoking prevalence population. Fewer Aboriginal and Torres Strait Islander smokers than all Australian smokers had tried an e-cigarette and fewer agreed that e-cigarettes are less harmful than conventional cigarettes. Australian governments, health authorities, health professionals, and e-cigarette regulations should provide clearer messages that e-cigarettes are less harmful.

Using Facebook to reduce smoking among Australian Aboriginal and Torres Strait Islander people: a participatory grounded action study.

BACKGROUND: There is limited evidence for the effectiveness of social media to promote healthy behaviour among Indigenous Australians, including to reduce smoking. Social media has significant potential to stimulate interpersonal influence to quit, however an important knowledge gap is how and what content people choose to share with friends and family. This paper explores the decision making processes of community members for sharing tobacco control content with family and friends on Facebook. METHODS: Community researchers were paid to choose and share at least one tobacco control post per week for a period of 6 months on their personal Facebook page. They documented reasons for their choices, which were coded and analysed to determine features of messages most likely to be shared, and salient considerations in the decision-making process. RESULTS: Posts which are child-focused, feature Indigenous content, and are perceived as practical, relevant and credible, with a direct and unambiguous message, were most likely to be shared. Posts which included disgusting imagery about health impacts, were focused on the environment, or were ambiguous or sarcastic were less likely to be shared. Decisions were also based on whether content was perceived to contain new information, to be helpful for their friends, and to be consistent with the participant's online identity, as well as the perceived sensitivity of content. The potential impact on expensive mobile data for videos was also a factor. CONCLUSIONS: When designing tobacco control messages to be shared on social media, health promoters should take into account how information will align with positive self-image and can contribute to social capital among the intended audience, and generate interpersonal engagement. Content should complement, rather than attempt to replicate, some message features that are effective on traditional broadcast media. This study shows the potential for health services to incorporate a strategy of using paid local social media 'champions' or 'ambassadors' to disseminate tobacco control messages on Facebook through community networks.

Social media and health information sharing among Australian Indigenous people.

Despite the enormous potential of social media for health promotion, there is an inadequate evidence base for how they can be used effectively to influence behaviour. In Australia, research suggests social media use is higher among Aboriginal and Torres Strait Islander people than the general Australian population; however, health promoters need a better understanding of who uses technologies, how and why. This qualitative study investigates what types of health content are being shared among Aboriginal and Torres Strait people through social media networks, as well as how people engage with, and are influenced by, health-related information in their offline life. We present six social media user typologies together with an overview of health content that generated significant interaction. Content ranged from typical health-related issues such as mental health, diet, alcohol, smoking and exercise, through to a range of broader social determinants of health. Social media-based health promotion approaches that build on the social capital generated by supportive online environments may be more likely to generate greater traction than confronting and emotion-inducing approaches used in mass media campaigns for some health topics.

An evaluation of the 'Yaka Ŋarali'' Tackling Indigenous Smoking program in East Arnhem Land: Yolŋu people and their connection to ŋarali'.

ISSUE ADDRESSED: Smoking prevalence estimated between 65% and 84% has been reported among the Yolŋu peoples of East Arnhem Land, Northern Territory. We report on findings of an evaluation of the Yaka Ŋarali' Tackling Indigenous Smoking program in East Arnhem Land. METHODS: Qualitative interviews with Yolŋu (N = 23) and non-Yolŋu (N = 7) informants were conducted in seven communities between June 2014 and September 2015, with the support of Cultural Mentors, in homeland communities throughout East Arnhem Land. The data was coded using NVivo software, analysed line-by-line and categorised by the researcher (MT) under three a priori categories established as evaluation parameters. In addition, the meanings of ŋarali' and Yolŋu cultural obligations to ŋarali' were analysed using an inductive process. RESULTS: Data were coded under three a priori themes: Yolŋu trying to quit smoking (interest in quitting, access to support); the Yaka Ŋarali program (efficacy and recognition); Yolŋu workforce (roles and responsibilities). Yolŋu informants, including Elders and leaders, both smokers and non-smokers uniformly acknowledged the deep cultural and traditional connection with ŋarali' attributing this relationship with its introduction by the Macassans and its subsequent adoption into ceremony. CONCLUSIONS: Given the strong cultural and traditional connection to ŋarali', care must be taken to ensure tobacco control measures maintain congruence with local values and expectations. SO WHAT?: Tailored, localised programs, developed in consultation with communities, Elders and leaders are needed to respect and accommodate the tight connection that the Yolŋu have with ŋarali', maintained over hundreds of years.

Incentives for preventing smoking in children and adolescents.

BACKGROUND: Adult smoking usually has its roots in adolescence. If individuals do not take up smoking during this period it is unlikely that they ever will. Further, once smoking becomes established, cessation is challenging; the probability of subsequently quitting is inversely proportional to the age of initiation. One novel approach to reducing the prevalence of youth smoking is the use of incentives. OBJECTIVES: To assess the effect of incentives on preventing children and adolescents (aged 5 to 18 years) from starting to smoke. It was also our intention to assess, where possible, the dose-response of incentives, the costs of incentive programmes, whether incentives are more or less effective in combination with other interventions to prevent smoking initiation, and any unintended consequences arising from the use of incentives. SEARCH METHODS: For the original review (published 2012) we searched the Cochrane Tobacco Addiction Group Specialized Register, with additional searches of MEDLINE, Embase, CINAHL, CSA databases and PsycINFO for terms relating to incentives, in combination with terms for smoking and tobacco use, and children and adolescents. The most recent searches were of the Cochrane Tobacco Addiction Group Specialized Register, and were carried out in December 2016. SELECTION CRITERIA: We considered randomized controlled trials (RCTs) allocating children and adolescents (aged 5 to 18 years) as individuals, groups or communities to intervention or control conditions, where the intervention included an incentive aimed at preventing smoking uptake. We also considered controlled trials (CTs) with baseline measures and post-intervention outcomes. DATA COLLECTION AND ANALYSIS: Two review authors extracted and independently assessed the data. The primary outcome was the smoking status of children or adolescents at follow-up who reported no smoking at baseline. We required a minimum follow-up of six months from baseline and assessed each included study for risks of bias. We used the most rigorous definition of abstinence in each trial; we did not require biochemical validation of self-reported tobacco use for study inclusion. Where possible we combined eligible studies to calculate pooled estimates at the longest follow-up, using the Mantel-Haenszel fixed-effect method, grouping studies by study design. MAIN RESULTS: We identified three eligible RCTs and five CTs, including participants aged 11 to 14 years, who were non-smokers at baseline. Of the eight trials identified, six had analyzable data relevant for this review, which contributed to meta-analyses (7275 participants in total: 4003 intervention; 3272 control; 2484 participants after adjusting for clustering). All except one of the studies tested the 'Smokefree Class Competition' (SFC), which has been widely implemented throughout Europe. In this competition, classes with youth generally between the ages of 11 and 14 years commit to being smoke-free for a six-month period, and report their smoking status regularly. If 90% or more of the class are non-smokers at the end of the six months, the class goes into a competition to win prizes. The one study that was not a trial of the SFC was a controlled trial in which schools in two communities were assigned to the intervention, with schools in a third community acting as controls. Students in the intervention community with lower smoking rates at the end of the project (one school year) received rewards.Most studies resulted in statistically non-significant results. Only one study of the SFC reported a significant effect of the competition on the prevention of smoking at the longest follow-up. However, this study was at risk of multiple biases, and when we calculated the adjusted risk ratio (RR) we no longer detected a statistically significant difference. The pooled RR for the more robust RCTs (3 studies, n = 3056 participants/1107 adjusted for clustering) suggests that there is no statistically significant effect of incentives, in the form of the SFC, to prevent smoking initiation among children and adolescents in the long term (RR 1.00, 95% confidence interval (CI) 0.84 to 1.19). Pooled results from the non-randomized trials also did not detect a significant effect of the SFC, and we were unable to extract data on our outcome of interest from the one trial that did not study the SFC. There is little robust evidence to suggest that unintended consequences (such as making false claims about their smoking status and bullying of smoking students) are consistently associated with such interventions, although this has not been the focus of much research. There was insufficient information to assess the dose-response relationship or to report costs of incentives for preventing smoking uptake.We judged the included RCTs to be at unclear risk of bias, and the non-RCTs to be at high risk of bias. Using GRADE, we rated the overall quality of the evidence for our primary outcome as 'low' (for RCTs) and 'very low' (for non-RCTs), because of imprecision (all studies had wide confidence intervals), and for the risks of bias identified. We further downgraded the non-RCT evidence, due to issues with the non-RCT study design, likely to introduce further bias. AUTHORS' CONCLUSIONS: The very limited evidence currently available suggests that incentive programmes do not prevent smoking initiation among youth. However, there are relatively few published studies and these are of variable quality. In addition, trials included in the meta-analyses were all studies of the SFC, which distributed small to moderately-sized prizes to whole classes, usually through a lottery system. It is therefore possible that other incentive programmes could be more successful at preventing smoking uptake in young people.Future studies might investigate the efficacy of a wider range of incentives, including those given to individual participants to prevent smoking uptake, whilst considering both the effect of incentives on smoking initiation and the progression to smoking. It would be useful if incentives were evaluated in varying populations from different socioeconomic and ethnic backgrounds, and if intervention components were described in detail.

Dependence in a national sample of Aboriginal and Torres Strait Islander daily smokers.

OBJECTIVES: To examine indicators of nicotine dependence in a national sample of Aboriginal and Torres Strait Islander daily smokers and their association with sustaining a quit attempt for at least 1 month, and to make comparisons with a national sample of Australian daily smokers. DESIGN, SETTING AND PARTICIPANTS: The Talking About The Smokes project used a quota sampling design to recruit 1392 daily smokers from communities served by 34 Aboriginal community-controlled health services and one community in the Torres Strait from April 2012 to October 2013. These were compared with 1010 daily smokers from the general Australian population surveyed by the International Tobacco Control Policy Evaluation Project from September 2011 to February 2012. MAIN OUTCOME MEASURES: Cigarettes per day (CPD), time to first cigarette, Heaviness of Smoking Index (HSI), other indicators of dependence, and whether smokers had ever sustained a quit attempt for at least 1 month. RESULTS: There was little difference in the mean HSI scores for Aboriginal and Torres Strait Islander and other Australian daily smokers. A higher proportion of Aboriginal and Torres Strait Islander daily smokers smoked ≤ 10 CPD (40% v 33.4%), but more also smoked their first cigarette within 30 minutes of waking (75% v 64.6%). Lower proportions of Aboriginal and Torres Strait Islander smokers reported having strong urges to smoke at least several times a day (51% v 60.7%) or that it would be very hard to quit (39% v 47.9%). Most Aboriginal and Torres Strait Islander smokers reported experiencing difficulties during their most recent quit attempt. All indicators of dependence, except CPD and strong urges, were positively associated with not having made a sustained quit attempt. Reported difficulties during the most recent quit attempt were more strongly associated with being unable to sustain quit attempts than were traditional measures of dependence. CONCLUSION: Aboriginal and Torres Strait Islander smokers' experiences of past attempts to quit may be more useful than conventional indicators of nicotine dependence in understanding their dependence.

Predictors of wanting to quit in a national sample of Aboriginal and Torres Strait Islander smokers.

OBJECTIVE: To describe factors that predict wanting to quit smoking in a national sample of Aboriginal and Torres Strait Islander people. DESIGN, SETTING AND PARTICIPANTS: The Talking About The Smokes (TATS) project used a quota sampling design to recruit participants from communities served by 34 Aboriginal community-controlled health services and one community in the Torres Strait. Baseline survey data were collected from 1643 current smokers between April 2012 and October 2013. MAIN OUTCOME MEASURE: Wanting to quit smoking. RESULTS: More than two-thirds of smokers (70%) said they want to quit. Many factors were associated with wanting to quit, including past quitting activity. Interest in quitting was lower among men and smokers from economically disadvantaged areas, but there was no difference by age, remoteness or other measures of economic disadvantage. Attitudes and beliefs negatively associated with wanting to quit included enjoying smoking and believing quitting to be very difficult, and those positively associated included regretting ever starting to smoke, perceiving that local Aboriginal and Torres Strait Islander community leaders disapprove of smoking, believing non-smokers set a good example to children, worrying about future smoking-related health effects and believing quitting to be beneficial. Reporting support from family and friends was predictive of wanting to quit, but factors related to smoking in the social network were not. Associations with health and wellbeing were mixed. While most tobacco control policy exposure variables were positively associated with wanting to quit, two - receiving advice to quit from a health professional, and recall of targeted anti-tobacco advertising - appeared to have an effect that extended beyond influencing relevant attitudes and beliefs. CONCLUSION: Interest in quitting among Aboriginal and Torres Strait Islander smokers appears to be influenced by a broad range of factors, highlighting the importance of taking a comprehensive approach to tobacco control. Advice from health professionals and targeted advertising appear to be important intervention strategies.

Past quit attempts in a national sample of Aboriginal and Torres Strait Islander smokers.

OBJECTIVES: To describe past attempts to quit smoking in a national sample of Aboriginal and Torres Strait Islander people, and to compare their quitting activity with that in the general Australian population. DESIGN, SETTING AND PARTICIPANTS: The Talking About The Smokes (TATS) project used a quota sampling design to recruit participants from communities served by 34 Aboriginal community-controlled health services and one community in the Torres Strait. We surveyed 1643 smokers and 78 recent quitters between April 2012 and October 2013. Baseline results for daily smokers (n = 1392) are compared with results for daily smokers (n = 1655) from Waves 5 to 8.5 (2006-2012) of the Australian International Tobacco Control Policy Evaluation Project (ITC Project). MAIN OUTCOME MEASURES: Ever having tried to quit, tried to quit in the past year, sustained a quit attempt for 1 month or more. RESULTS: Compared with the general population, a smaller proportion of Aboriginal and Torres Strait Islander daily smokers had ever tried to quit (TATS, 69% v ITC, 81.4%), but attempts to quit within the past year were similar (TATS, 48% v ITC, 45.7%). More Aboriginal and Torres Strait Islander daily smokers than those in the general population reported sustaining past quit attempts for short periods only. Aboriginal and Torres Strait Islander smokers whose local health services had tobacco control resources were more likely to have tried to quit, whereas men and people who perceived they had experienced racism in the past year were less likely. Younger smokers, those who had gone without essentials due to money spent on smoking, and those who were often unable to afford cigarettes were more likely to have tried to quit in the past year, but less likely to have ever sustained an attempt for 1 month or more. Smokers who were unemployed, those who had not completed Year 12 and those from remote areas were also less likely to sustain a quit attempt. CONCLUSIONS: Existing comprehensive tobacco control programs appear to be motivating Aboriginal and Torres Strait Islander smokers to quit but do not appear to overcome challenges in sustaining quit attempts, especially for more disadvantaged smokers and those from remote areas.

Smoke-free homes and workplaces of a national sample of Aboriginal and Torres Strait Islander people.

OBJECTIVE: To examine Aboriginal and Torres Strait Islander people's protection from second-hand smoke at home and work. DESIGN, SETTING AND PARTICIPANTS: The Talking About The Smokes project surveyed 2522 Aboriginal and Torres Strait Islander people from communities served by 34 Aboriginal community-controlled health services and one community in the Torres Strait, using quota sampling, from April 2012 to October 2013. We made comparisons with data from Australian smokers in the International Tobacco Control Policy Evaluation Project (ITC Project), collected from either July 2010 to May 2011 or September 2011 to February 2012. MAIN OUTCOME MEASURES: Whether smoking was not allowed anywhere in the home, or not allowed in any indoor area at work. RESULTS: More than half (56%) of Aboriginal and Torres Strait Islander smokers and 80% of non-smokers reported that smoking was never allowed anywhere in their home. Similar percentages of daily smokers in our sample and the Australian ITC Project data reported bans. Most employed Aboriginal and Torres Strait Islander daily smokers (88%) reported that smoking was not allowed in any indoor area at work, similar to the Australian ITC Project estimate. Smokers working in smoke-free workplaces were more likely to have smoke-free homes than those in workplaces where smoking was allowed indoors (odds ratio, 2.85; 95% CI, 1.67-4.87). Smokers who lived in smoke-free homes were more likely to have made a quit attempt in the past year, to want to quit, and to have made quit attempts of 1 month or longer. CONCLUSION: Most Aboriginal and Torres Strait Islander people are protected from second-hand smoke at work, and similar proportions of Aboriginal and Torres Strait Islander smokers and other Australian smokers do not allow smoking inside their homes.

Smoking-related knowledge and health risk beliefs in a national sample of Aboriginal and Torres Strait Islander people.

OBJECTIVES: To describe general knowledge and perceived risk of the health consequences of smoking among Aboriginal and Torres Strait Islander people; and to assess whether knowledge varies among smokers and whether higher knowledge and perceived risk are associated with quitting. DESIGN, SETTING AND PARTICIPANTS: The Talking About The Smokes project used quota sampling to recruit participants from communities served by 34 Aboriginal community-controlled health services and one community in the Torres Strait. Baseline survey data were collected from 2522 Aboriginal and Torres Strait Islander adults from April 2012 to October 2013. MAIN OUTCOME MEASURES: Knowledge of direct effects of smoking and harms of second-hand smoke (SHS), risk minimisation, health worry, and wanting and attempting to quit. RESULTS: Most Aboriginal and Torres Strait Islander participants who were daily smokers demonstrated knowledge that smoking causes lung cancer (94%), heart disease (89%) and low birthweight (82%), but fewer were aware that it makes diabetes worse (68%). Similarly, almost all daily smokers knew of the harms of SHS: that it is dangerous to non-smokers (90%) and children (95%) and that it causes asthma in children (91%). Levels of knowledge among daily smokers were lower than among non-daily smokers, ex-smokers and never-smokers. Among smokers, greater knowledge of SHS harms was associated with health worry, wanting to quit and having attempted to quit in the past year, but knowledge of direct harms of smoking was not. CONCLUSION: Lack of basic knowledge about the health consequences of smoking is not an important barrier to trying to quit for Aboriginal and Torres Strait Islander smokers. Framing new messages about the negative health effects of smoking in ways that encompass the health of others is likely to contribute to goal setting and prioritising quitting among Aboriginal and Torres Strait Islander people.