Managing Fear Responses: A Qualitative Analysis of Pictorial Warning Labels Five Years Post-Plain Packaging.

INTRODUCTION: Although pictorial warning labels (PWLs) now dominate tobacco packages sold in many countries, few studies have probed how people who smoke respond to the threats presented several years post-plain packaging and larger PWLs. Understanding how people manage the fear and dissonance PWLs arouse, and the strategies they use to rationalize, diminish, and reject risk messages, could inform future PWL design. AIMS AND METHODS: We undertook 27 in-depth interviews with people aged 18 and over (16 female, 8 Maori, and 13 aged ≤35) who smoked roll-your-own tobacco and lived in Aotearoa New Zealand. We probed participants' views on current PWLs and how they responded to these, then asked them to use alternative images and headlines to create new PWLs. We drew on the extended parallel processing model to interpret the data, which we analyzed using a reflexive thematic analysis approach. RESULTS: People who smoke dislike PWLs, which they think reduce them to diseased body parts. While a minority thought existing PWLs were believable and effective, most reported avoiding PWLs by hiding or cognitively blocking them. Participants used diverse counterarguments to diminish PWLs' relevance and impact, and a minority displayed strong reactance. Several suggested developing PWLs that recognized them as whole people rather than patients in waiting, and recommended greater use of testimonials, particularly from people who had successfully become smoke free. CONCLUSIONS: PWLs using more holistic and diverse messages could elicit greater engagement and responsiveness, and motivate cessation more effectively than existing health-oriented warnings. IMPLICATIONS: Our findings suggest existing PWLs, which aim to arouse fear of ill health, could be complemented by warnings that emphasize the benefits of quitting. Continuing to use threat-based PWLs could stimulate greater rationalization and reactance. By contrast, PWLs that aim to illustrate how cessation could benefit people who smoke and their families, rather than instill a fear of disease, could avoid message rejection and counter-argument, and may prove a more powerful way of motivating cessation.

Is the tobacco 'footfall' argument justified for tobacco purchases in New Zealand convenience stores?

INTRODUCTION: New Zealand's Smokefree 2025 goal aims to greatly decrease the availability of tobacco. One option is to cease the sale of tobacco from convenience stores. However, tobacco companies and retail trade associations oppose this move and have argued that customers who purchase tobacco drive footfall and spend more than non-tobacco customers. The aim of this study is to test the validity of industry claims about the importance of tobacco to convenience stores. METHODS: During November and December 2019, immediate postpurchase surveys were undertaken with customers on exit from a random sample of 100 convenience stores in two New Zealand cities. We estimated the mean number of items purchased, including tobacco and non-tobacco items, and mean expenditure on non-tobacco items. RESULTS: Of the 3399 transactions recorded, 13.8% included tobacco, of which 8.3% comprised tobacco only and 5.5% included tobacco and non-tobacco items. The mean number of transactions containing both tobacco and non-tobacco items was 1.98, and 1.87 for those containing non-tobacco items only. Customers who purchased tobacco and non-tobacco items spent on average NZ$6.99 on non-tobacco items, whereas customers who purchased non-tobacco items only, spent on average NZ$5.07. CONCLUSIONS: Our results do not support claims that tobacco drives one-quarter of footfall into stores or that customers who purchase tobacco spend almost twice as much as non-tobacco customers. Combined purchases of tobacco and non-tobacco items constituted 5.5% of transactions; the impact on a store's profitability of removing tobacco sales is unknown and could be the focus of future research.

Choice and Variety-Seeking of E-liquids and Flavor Categories by New Zealand Smokers Using an Electronic Cigarette: A Longitudinal Study.

BACKGROUND: Little is currently known about how e-liquid flavor use evolves among electronic cigarette users. We describe patterns of e-liquid and flavor category use, and variety-seeking, among New Zealand adult smokers attempting to transition from smoking to e-cigarettes. METHODS: Data were collected in 2018-19, using a longitudinal design comprising up to five in-depth interviews over a 12-20 week period. Participants (n = 32) were current smokers aged ≥18 years, who were not currently using an e-cigarette once a week or more often, and were willing to use an e-cigarette in an attempt to stop smoking. We purchased participants a starter e-cigarette of their choice; they supplied their own e-liquids throughout the study. We extracted e-liquid use data from the verbatim interview transcripts, categorized these into flavor categories, and then explored these data for the whole sample, and by flavor category purchased at intake. RESULTS: Most participants (n = 12) selected a tobacco flavored e-liquid at intake; fruit (n = 7), mint/menthol (n = 6), and dessert/sweets and non-alcoholic beverage (both n = 5) were also popular. Most participants were still using their initially chosen flavor category at study exit, however, many described variety-seeking behaviors, which typically occurred during the first 12 weeks of enrolment. CONCLUSION: Most participants did not follow a straightforward e-liquid or flavor category pathway. Evidence of a variety-seeking continuum, typically occurring within the first 12 weeks, suggests possible opportunities at specialist e-cigarette stores to couple e-liquid purchasing occasions with cessation advice. IMPLICATIONS: Variety-seeking behavior was common and typically reported within the first 12 weeks of participants' e-cigarette-assisted attempt to transition away from smoking. Policies allowing diverse e-liquid flavors at specialist stores only could support users' variety-seeking and potentially create opportunities to couple e-liquid purchasing occasions with cessation advice during the first months of a transition attempt.

A Qualitative Analysis of Maori and Pacific people's Experiences of Using Electronic Nicotine Delivery Systems (ENDS).

INTRODUCTION: If electronic nicotine delivery systems (ENDS) are to bring public health benefits, members of population groups most affected by smoking must find them an easily adopted and satisfying replacement for smoking. We explored experiences of ENDS uptake and use among Maori and Pacific peoples living in New Zealand and probed factors that assisted transitions from smoking to vaping. METHODS: We recruited 16 participants using whanaungatanga and community advertising. All were aged 18 or over, identified as Maori or Pacific (or both), had smoked at least 100 cigarettes, and were current ENDS users. We undertook in-depth interviews and analyzed the data using a thematic analysis approach. RESULTS: We identified two key challenges that participants reported facing: their search for a satisfying ENDS experience and resisting social cues that could trigger relapse. Two supportive factors facilitated and reinforced smoking to vaping transitions: improved financial and physical well-being, and feeling connected to vaping communities. CONCLUSION: Learning about ENDS devices from those who had successfully switched from smoking to vaping provided much-needed information, reinforced the financial benefits of switching, and could inspire those making this transition to persist until they too become smoke free. IMPLICATIONS: Measures to support transitions from smoking to ENDS use could reduce inequities in smoking prevalence that indigenous people experience. Collective cessation interventions that draw on communities' knowledge and connections may enable smokers to access support that helps them navigate the potentially complex pathway from smoking to vaping.

It's Just Steam: a qualitative analysis of New Zealand ENDS users' perceptions of secondhand aerosol.

INTRODUCTION: Many smokers who begin using electronic nicotine delivery systems (ENDS) report vaping in settings where they would not have smoked and believe secondhand aerosol (SHA) is simply steam. However, current understanding of how ENDS users differentiate between secondhand smoke and SHA, or how vaping norms develop, is limited. METHODS: We conducted in-depth, semi-structured interviews with 39 current ENDS users (dual users and former smokers, now exclusive ENDS users) from New Zealand to explore participants' perceptions of SHA. We probed how these perceptions arose and examined implications for vaping practices and policy. We managed the data using NVivo V.11 and used a thematic analysis approach to interpret the transcripts. RESULTS: Participants had limited understanding of SHA, its constituents or its possible effects on others. They drew on the absence of harm information, and their sensory experiences and perceptions of others' views of vaping, to support the conclusion that SHA posed few, if any, risks to bystanders. Yet despite this perception, some felt they should recognise others' rights to clean air and most would not vape around children to avoid setting an example. CONCLUSIONS: In the absence of trusted information, participants used sensory heuristics to rationalise their ENDS practices. Policy-makers face the challenge of correcting misperceptions about SHA without deterring full transition from smoking to ENDS use. They could consider including vaping in current smoke-free area policies; this measure would signal that SHA is not harmless, and could protect clean-air settings and reduce potential normalisation of vaping among non-smokers.

Flavor Capsule Variants' Performance in a "Dark Market": Implications for Standardized Packaging.

BACKGROUND: By increasing excise taxes, eliminating tobacco marketing, and requiring standardized (plain) packaging of tobacco products, governments internationally have reduced smoking's allure. Yet product innovations, such as flavor capsule variants (FCVs), remain unregulated and may appeal to non-smokers. We examined the growth of FCVs in a country with a progressive policy environment. METHODS: Each year, New Zealand tobacco companies must provide details of the number of cigarette sticks released for each brand and variant to the Ministry of Health. We used this information to analyze FCVs' performance for British American Tobacco (BAT) and Philip Morris International (PMI), which account for a large proportion of New Zealand tobacco sales. We report the quantity released of each variant and share of parent brand portfolio, and examine growth patterns within the premium, everyday, and value market subsections. RESULTS: BAT introduced FCVs in 2012 and by 2014 offered FCVs in all market subsections; PMI introduced a Marlboro FCV in 2014. FCVs grew rapidly relative to unflavored variants and, by 2017, represented nearly 10% of BAT's product portfolio and more than 3% of PMI's product portfolio. By 2017, FCVs accounted for more than a third of the Dunhill sticks released, 14% of Holiday, and 17% of Pall Mall. CONCLUSIONS: FCVs' rapid growth may have reduced declines in the numbers of sticks released. Policy makers should disallow FCV innovations, which offer no health benefits to smokers and may instead attract non-smokers to smoking. Where timely, these regulations could be incorporated into standardized packaging policies. IMPLICATIONS: FCVs have grown quickly in countries with comprehensive tobacco marketing restrictions, which suggests tobacco companies are now focusing on novel product designs to attract new smokers. Standardized packaging regulations could address both external packaging and stick design innovations, such as FCVs; alternatively, specific regulations prohibiting FCVs may be required.

Roll-your-own loose tobacco packaging warning labels: a qualitative study using a novel elicitation method.

BACKGROUND: Many countries have seen roll-your-own (RYO) loose tobacco use increase, despite policies to reduce smoking prevalence. On-pack pictorial warning labels (PWLs) typically feature general warnings about smoking, and no jurisdictions link these to specific types of tobacco (ie, RYO tobacco or tailor made cigarettes). We explored the warning narratives a sample of RYO smokers created when given an opportunity to create their own PWL. METHODS: We conducted 20 in-depth interviews with New Zealand RYO smokers aged between 18 and 67 years. Participants used a novel elicitation method-a 'construct-a-pouch' exercise-to develop an on-pouch warning they regarded as effective. We used a qualitative descriptive approach to interpret the transcripts. RESULTS: Participants engaged with the novel and emotive content of the images and text messages, and constructed PWLs that typically drew on themes of regret, sadness and loss. Participants perceived the warning narratives they created as highly credible and emotionally salient. These contrasted sharply with existing PWLs on RYO pouches, which they rationalised as tired, uninteresting and unlikely to prompt cessation. CONCLUSIONS: Our findings reinforce the importance of high-affect arousing PWLs and suggest involving smokers in the formative creation of PWLs may result in markedly more impactful warnings. Linking PWLs to the type of tobacco smoked may also reduce the rationalisations smokers employ to discount warnings, and result in warnings that prompt engagement and personal reflection.

Roll-your-own smokers' reactions to cessation-efficacy messaging integrated into tobacco packaging design: a sequential mixed-methods study.

BACKGROUND: Although loss-framed pictorial warning labels (PWLs) have increased knowledge of the health harms caused by smoking, they may elicit maladaptive responses among some smokers who have tried repeatedly, yet unsuccessfully, to quit smoking. However, research suggests that maladaptive responses may diminish if warnings are complemented with efficacy enhancing messages. Therefore, we explored New Zealand (NZ) adult roll-your-own (RYO) loose tobacco smokers' reactions to self-efficacy and response efficacy messages integrated into the RYO packaging structure and designed to complement PWLs. DESIGN: We used a sequential mixed-methods design. In-depth interviews gauged participants' (n=22) acceptance of the designs and informed stimuli development for an online survey. The survey (n=785) compared self-efficacy and response efficacy designs to standard Quitline information, and examined agreement with emotions, beliefs and projected behaviours associated with quit attempts. RESULTS: Our findings suggest placing gain-framed response efficacy messages on the inside flap of RYO tobacco pouches may stimulate specific emotional reactions, beliefs and projected behaviours associated with future quit attempts more effectively than NZ's status quo Quitline information. Those potentially more likely to benefit include smokers who have high baseline response efficacy and who intend to make a quit attempt. CONCLUSIONS: Integrating cessation-related messaging within tobacco packaging could be a high reach, just-in-time micro-intervention at the point of decision-making. Enhanced efficacy messages could complement and enhance PWLs, and support quitting among groups where smoking prevalence is especially high.

An Exploration of Smoking-to-Vaping Transition Attempts Using a "Smart" Electronic Nicotine Delivery System.

INTRODUCTION: Electronic nicotine delivery systems (ENDS) are used to aid smoking cessation attempts; however, many smokers continue to smoke while using an ENDS (dual use). Although uncertainty remains regarding whether specific ENDS patterns hinder or support successful smoking cessation, recent advances in "smart" technology allow passive and active recording of behaviors in real time, enabling more detailed insights into how smoking and vaping patterns may coevolve. We describe patterns of ENDS initiation, and subsequent use, including any changes in cigarette consumption, among daily smokers using a "smart" ENDS (S-ENDS) to quit smoking. METHOD: An 8-week long mixed-methods feasibility study used Bluetooth-enabled S-ENDS that passively recorded real-time device use by participants (n = 11). Daily surveys administered via smartphones collected data on self-reported cigarette consumption. RESULTS: All 11 participants were dual users, at least initially, during their quit attempt. We observed three provisional vaping and smoking patterns: immediate and intensive ENDS initiation coupled with immediate, dramatic, and sustained smoking reduction, leading to smoking abstinence; gradual ENDS uptake with gradual smoking reductions, leading to daily dual use throughout the study period; and ENDS experimentation with return to exclusive smoking. For six participants, the patterns observed in week 1 were similar to the vaping and smoking patterns observed throughout the rest of the study period. CONCLUSION: Technological advances now allow fine-grained description of ENDS use and smoking patterns. Larger and longer studies describing smoking-to-vaping patterns, and estimating associations with smoking outcomes, could inform ENDS-specific cessation advice promoting full transition from smoking to exclusive ENDS use. IMPLICATIONS: The use of an S-ENDS that recorded real-time device use among daily smokers engaged in a quit attempt provides insight into patterns and trajectories of dual use (continuing to smoke while using ENDS), and the possible associations between ENDS initiation, subsequent use, and smoking cessation outcomes. Such work could support more targeted cessation counseling and technical advice for smokers using ENDS to quit smoking, reduce the risk of users developing long-term dual use patterns, and enhance the contributions ENDS may make to reducing smoking prevalence.

Butting out: an analysis of support for measures to address tobacco product waste.

BACKGROUND: Cigarette butts are ubiquitous litter items, causing major environmental damage and imposing significant clean-up costs. Tobacco companies frame smokers as both the cause of this problem and the source of its solution. However, an extended producer responsibility perspective challenges this view and holds tobacco companies to account for the full life cycle costs of tobacco product waste (TPW). METHODS: Using an online cross-sectional survey of 396 New Zealand smokers and 414 non-smokers, we estimated awareness of TPW, attribution of responsibility for TPW and support for interventions to reduce TPW. Descriptive analyses and logistic regression models examined associations between demographic attributes and smoking behaviours, and perceptions of TPW and potential solutions to this problem. RESULTS: Most respondents saw butt litter as toxic to the environment and held smokers primarily responsible for creating TPW. However, when knowledge of butt non-biodegradability increased, so too did the proportion holding tobacco companies responsible for TPW. Changes to product design, fines for littering and expanded smoke-free spaces were considered most likely to reduce TPW. Smokers and non-smokers held different views on measures to address TPW, with smokers favouring more educative approaches and non-smokers more restrictive policies. CONCLUSIONS: Strategies to increase awareness of tobacco companies' role in creating TPW could foster political support for producer responsibility measures that require the industry to manage TPW. Nevertheless, policy measures should continue to foster smoking cessation and decrease uptake, as reducing smoking prevalence presents the best long-term solution to addressing TPW.

Dual use of electronic nicotine delivery systems (ENDS) and smoked tobacco: a qualitative analysis.

INTRODUCTION: Electronic nicotine delivery systems (ENDS) arguably pose fewer health risks than smoking, yet many smokers adopt ENDS without fully relinquishing smoking. Known as 'dual use', this practice is widespread and compromises the health benefits that ENDS may offer. To date, few studies have explored how dual use practices arise and manifest. METHODS: We conducted in-depth, semi-structured interviews with 20 current ENDS users from New Zealand who reported smoking tobacco at least once a month. We explored participants' smoking history, their recent and current smoking, trial, uptake and patterns of ENDS use, and future smoking and vaping intentions. We managed the data using NVivo V.11 and used a thematic analysis approach to interpret the transcripts. RESULTS: Dual use practices among participants evolved in four ways. First, as an attempt to manage the 'inauthenticity' of vaping relative to smoking and to retain meaningful rituals. Second, as complex rationalisations that framed decreased tobacco use, rather than smoking cessation, as 'success'. Third, as a means of alleviating the financial burden smoking imposed and to circumvent smoke-free policies. Lastly, dual use reflected attempts to comply with social group norms and manage stigma. CONCLUSIONS: Dual use reflects both social and physical cues. It assisted participants to navigate smoking restrictions and allowed them to manage divergent norms. Policies that discourage smoking, particularly excise tax increases on smoked tobacco and smoke-free space restrictions, appear important in prompting ENDS use. Future research could explore whether these policies also help foster complete transition from smoking to exclusive ENDS use.

Young adult susceptible non-smokers' and smokers' responses to capsule cigarettes.

BACKGROUND: Flavour capsule cigarette variants (FCVs), which allow users to customise their smoking experience and reduce the harshness of smoking, have captured an increasing share of many markets. We examined tobacco companies' argument that such product innovations aim simply to shift market share, by estimating smokers' and susceptible non-smokers' responses to FCVs. METHODS: We conducted an online survey of 425 smokers (daily and non-daily), susceptible non-smokers (n=224) and former smokers (n=166) aged between 18 and 25. Restrpondents completed a choice experiment, a behavioural probability measure and a perception task. We analysed the choice data using a conditional logistic regression and a rank-ordered logistic regression, and the probability and perception data using t-tests and descriptive statistics. RESULTS: Non-smokers preferred an FCV relative to an unflavoured cigarette, whereas the opposite was the case for smokers. Susceptible non-smokers and former smokers were more likely to try a fruit flavoured FCV than an unflavoured stick, while daily smokers were more likely than non-daily smokers to do the same. Susceptible non-smokers, former smokers and non-daily smokers also had more positive perceptions of FCVs relative to unflavoured sticks than did daily smokers. CONCLUSIONS: FCVs appeal more to non-smokers than to smokers, and more to non-daily smokers than to daily smokers. They thus appear likely to recruit non-smokers and potentially increase overall smoking prevalence. Policy responses include ensuring standardised packaging legislation disallows FCVs by specifically regulating the appearance and design of tobacco products, or introducing bespoke regulation that addresses the threat posed by FCVs.

Proton Pump Inhibitors and Infant Pneumonia/Other Lower Respiratory Tract Infections: National Nested Case-control Study.

OBJECTIVE: The possible association between the use of proton pump inhibitors (PPIs) and community-acquired pneumonia (CAP) or another lower respiratory tract infection (LRTI) remains uncertain. We conducted a nested case-control study using routinely collected national health and drug dispensing data in New Zealand to examine the risk of CAP or another LRTI resulting in hospitalization or death in infants dispensed a PPI. STUDY DESIGN: The cohort included 21,991 patients without a history of CAP or another LRTI who were born between 1 January 2005 and 31 December 2012 and were dispensed omeprazole, lansoprazole, or pantoprazole (the PPIs available in New Zealand during the study period) on at least one occasion during the first year of life. Cases had a first diagnosis after cohort entry (first PPI dispensing) of CAP (n = 65) validated by hospital discharge letter or death record, and chest radiography; or LRTI (including CAP) (n = 566) validated by hospital discharge letter or death record, with or without chest radiography. Up to 10 controls, matched by sex and date of birth, were randomly selected for each case. We conducted complete case analyses for the fully adjusted models. RESULTS: In the adjusted analysis based on CAP cases and their controls, the matched odds ratio for current versus past use of PPIs was 0.88 (95% confidence interval 0.36-2.16). For all LRTI cases and their controls, the matched odds ratio was 1.13 (0.87-1.48). CONCLUSION: In otherwise healthy community-dwelling infants, current use of a PPI does not appear to increase the risk of CAP or other LRTIs.

National Study of Off-label Proton Pump Inhibitor Use Among New Zealand Infants in the First Year of Life (2005-2012).

OBJECTIVES: Off-label prescribing of proton pump inhibitors (PPIs) to infants to treat symptoms attributed to gastroesophageal reflux disease (GERD) is widely reported, despite evidence that PPIs are no more effective than placebo in relieving those symptoms. To initiate discussion about appropriate prescribing of these drugs for infants, we describe the characteristics of PPI use among infants in New Zealand. METHODS: In this population-based study we used routinely collected dispensing data to identify all children born between 2005 and 2012 who were dispensed a government-subsidized PPI (omeprazole, lansoprazole, pantoprazole) before their first birthday. Unique patient identifiers were used to link administrative datasets containing patient-level demographic, dispensing, and health information. RESULTS: In total, 22,643 children were dispensed a study PPI before their first birthday. The prevalence of infant PPI use as a proportion of all live births increased from 2.4% for children born in 2005 to 5.2% for children born in 2012. Overall, 71.6% of infants were dispensed a PPI by 3 months of age, and 8.7% received a PPI within the first month of life. Before PPI initiation, only 7.0% of infants had a hospital-based diagnosis of GERD (with or without esophagitis), and 4.7% of infants had a hospital-based diagnosis of one or more known or suspected GERD risk factors. CONCLUSIONS: Off-label prescribing of PPIs to New Zealand infants was relatively common and increased over the study period. The appropriateness of PPI treatment should be questioned, as the majority of infants who received these drugs were not diagnosed with severe GERD.

Alcohol use, mental well-being, self-esteem and general self-efficacy among final-year university students.

PURPOSE: We aimed to quantify associations between drinking and mental well-being, self-esteem and general self-efficacy among New Zealand university students approaching graduation. METHODS: A web-based survey was conducted across all eight New Zealand universities in 2011. Participants were enrolled in their final year of a bachelor degree or a higher qualification and were aged 25 years and under (n = 5082, response level 65 %). Measures included the Alcohol Use Disorders Identification Test-Consumption, Warwick-Edinburgh Mental Well-being Scale, and items from the Rosenberg Self-esteem Scale and General Self-efficacy Scale. Linear regression models were used to estimate associations between the psychological measures and (1) drinking patterns for all participants (abstention/moderate/hazardous); and (2) consumption indicators for non-abstaining participants (frequency/quantity/heavy drinking frequency), adjusting for a range of individual, social and personality characteristics, separately for men and women. RESULTS: Lower mental well-being was associated with a moderate or hazardous drinking pattern for men, and a hazardous pattern for women, compared to abstaining participants. Higher self-esteem was associated with any level of heavy drinking frequency for men, while the heaviest drinking women had a pattern of lower self-esteem. There was a general pattern of higher general self-efficacy for men and women who drank alcohol. CONCLUSIONS: We observed that higher levels of drinking were associated with small, yet statistically significant, differences in psychological outcomes for men and women. Our findings are of uncertain clinical significance; however, they underscore the importance of investigating a fuller range of social and personality factors that may confound the association of drinking and psychological outcomes.

A nationwide nested case-control study indicates an increased risk of acute interstitial nephritis with proton pump inhibitor use.

The magnitude of the suspected increase in risk of acute interstitial nephritis among proton pump inhibitor users is uncertain. Here, we conducted a nested case-control study using routinely collected national health and drug dispensing data in New Zealand to estimate the relative and absolute risks of acute interstitial nephritis resulting in hospitalization or death in users of proton pump inhibitors. The cohort included 572,661 patients without a history of interstitial nephritis or other renal diseases who started a new episode of proton pump inhibitor use between 2005 and 2009. Cases had a first diagnosis after cohort entry of acute interstitial nephritis confirmed by hospital discharge letter or death record, and renal histology (definite, 46 patients), or discharge letter or death record only (probable, 26 patients). Ten controls, matched by birth year and sex, were randomly selected for each case. In the case-control analysis based on definite cases and their controls, the unadjusted matched odds ratio (95% confidence interval) for current versus past use of proton pump inhibitors was 5.16 (2.21-12.05). The estimate was similar when all cases (definite and probable) and their corresponding controls were analyzed, and when potential confounders were added to the models. The crude incidence rates and confidence intervals per 100,000 person-years were 11.98 (9.11-15.47) and 1.68 (0.91-2.86) for current and past use, respectively. Thus, current use of a proton pump inhibitor was associated with a significantly increased risk of acute interstitial nephritis, relative to past use.

Smoking, vaping and drinking: A qualitative analysis of Aotearoa New Zealand young adults who tried e-cigarettes to stop smoking tobacco.

BACKGROUND AND AIM: Social practices such as smoking-drinking co-use often go 'hand-in-hand', linked by the coordination of materials, skills and meanings. However, the experience of using e-cigarettes while drinking among people who smoke (and drink) remains underexplored. We used social practice theory to show how smoking, vaping and drinking intersect and to explain how vaping created two new social practices among people who tried e-cigarettes to stop smoking: 'vaping-drinking' co-use and 'smoking-vaping-drinking' poly-use. METHODS: We conducted five in-depth interviews over 18-24 weeks during 2018-19, with each of nine Aotearoa New Zealand young adults aged 20-29 years. Participants smoked daily, did not regularly use e-cigarettes at entry and wished to try vaping to stop smoking. We analysed participants' reports of smoking or vaping while drinking using thematic analysis. RESULTS: Individual participants reported both co-use and poly-use occasions throughout the study. Vaping-drinking co-use arose from practice 'replacement' processes, where vaping fully substituted smoking. Smoking-vaping-drinking poly-use arose from 'adjacency' processes where vaping complemented smoking. Participants used both processes flexibly over time, which required new skills in material, temporal, pleasure and social coordination to try to recreate valued meanings of comfort, security and communality associated with well-established smoking-drinking practices. Unsuccessful coordination attempts maintained smoking-drinking co-use. CONCLUSION: Among Aotearoa New Zealand young adult smokers who want to use vaping to stop smoking, drinking occasions may help to maintain existing smoking-drinking practices and facilitate the development of vaping-drinking co-use and smoking-vaping-drinking poly-use practices, potentially prolonging individuals' exposure to smoking.

Navigating social interactions and constructing vaping social identities: A qualitative exploration with New Zealand young adults who smoke.

INTRODUCTION: Social interactions help smoking and vaping practices evolve, and are essential when constructing social identities. Among people who smoke, vaping offers an alternative practice to 'smoking' and 'non-smoking', and using e-cigarettes blurs the boundaries between 'smoker' and 'non-smoker' social identities. In this study, we explored the development of vaping and smoking social identities over time among young adults who smoked and used e-cigarettes. METHODS: Over 18-24 weeks during 2018-2019, we conducted five interviews with each of 11 New Zealand young adults aged 19-29 years who tried vaping to stop smoking. We analysed participants' interview transcripts for social interactions involving smoking or vaping and used social identity theory to explore their construction of vaping social identities. RESULTS: Participants entered the study with smoke-free goals, and constructed social identities explicitly in relation to a smoke-free transition. Two key identity processes, 'adopting legitimacy' and 'transferring considerateness', informed participants' social identity construction as they attempted to reconcile their e-cigarette use with their pre-study characterisations of vaping as 'illegitimate' and 'obnoxious'. Our findings suggest that adopting a 'legitimate' vaper identity focussed on smoking cessation, and being perceived and accepted by others as a 'legitimate vaper', were essential in participants' identification as 'vapers'. Identifying as a 'legitimate' vaper was a pre-requisite to transferring a 'considerate' identity from smoking to vaping. DISCUSSION AND CONCLUSION: Participants' construction of vaping social identities suggests that negotiating and reconciling valued aspects of a smoking social identity with nascent vaping practices may be important during smoking-to-vaping transition attempts.

A qualitative analysis of electronic nicotine delivery systems (ENDS) uptake and use among young adult never-smokers in New Zealand.

INTRODUCTION: Electronic nicotine delivery systems (ENDS) likely pose fewer health risks than smoking. Yet ENDS uptake has increased among never-smoking young adults, who likely face greater health risks relative to non-users of ENDS. To date, few qualitative studies have explored ENDS uptake and use by never-smokers. METHODS: We conducted in-depth, semi-structured interviews with 16 current ENDS users from New Zealand aged 18 to 24 years old who reported never having smoked cigarettes regularly. We explored participants' experimentation with conventional tobacco products, trial, uptake and patterns of ENDS use, and their future intentions regarding both ENDS and conventional tobacco products. We managed the data using NVivo12 and used thematic analysis to interpret the transcripts. RESULTS: ENDS use enhanced connection and belonging by providing communal experiences and facilitating social interactions. Participants' mastery of tricks generated social cachet within friendship groups and counteracted the ENDS-related stigma they experienced. Flavours, clouds and devices' physical attributes provided stimulation and engagement, and some used ENDS for stress or appetite management. Lastly, participants rationalised ENDS uptake by referencing the far greater risks smoking posed. CONCLUSIONS: ENDS uptake by young adult never-smokers is driven by both psycho-social and functional factors. ENDS provided shared hedonic experiences and physical pleasures, and generated both bonding and bridging social capital, although many participants had also experienced judgement from others for using ENDS. Policies that denormalise ENDS as recreational devices could discourage uptake by never-smokers, though measures will require careful nuancing to avoid deterring smokers from switching to ENDS.