Reasons for quitting and smoking temptation among adolescent smokers: gender differences

"It's really addictive and I'm trapped:" A qualitative analysis of the reasons for quitting vaping among treatment-seeking young people

BACKGROUND

Debate continues over how e-cigarettes have impacted the health of young people, and what regulatory policies should be enacted. The debate has appropriately been informed by quantitative studies, often focused on initiation, prevalence, and product transition among the general population and demographic segments. Factors driving cessation and subjective experiences that motivate young users to quit have been largely absent from the debate. This qualitative study highlights the range of motivating experiences among a population of treatment-seeking young e-cigarette users.

METHODS

Three researchers coded reasons for quitting provided by a sample of n = 1000 youth (13-17) and n = 1000 young adults (18-24) enrolled in a text message cessation program. Data spanned January 18 - February 22, 2019. Codes were adapted from previous literature.

RESULTS

The most common reasons were health (50.9%; "I want my lungs back"), financial cost (21.7%; "I don't have enough money to feed my addiction"), freedom from addiction (16.0%; "i hate juuling. it's taking over my life"), and social influence (10.1%; "it's affecting my friendships"). Selected quotes highlight a broad range of additional ways in which e-cigarette use negatively impacted young people, including decreased academic performance and mental health.

CONCLUSIONS

Young people trying to quit e-cigarettes are motivated by a diversity of reasons including health, financial, social, and academic. The range of impacts should be considered in discussions of policies intended to protect young people, and incorporated into cessation programs designed to serve them.

Effect of Additional Motivational Interviewing on Smoking Abstinence for 1-Year among Korean Adolescents: Results from A Comparative Retrospective Study in Quitline

The aim of this study was to evaluate the effect of additional motivational enhancement through telephone-based counseling on short- and long-term smoking abstinence among Korean adolescents.

METHODS

A comparative retrospective study was conducted based on the longitudinal follow up in Quitline from 2010 to 2017. A total of 533 and 178 adolescent smokers voluntarily participated in the 1-year quitting counseling only (group A, who were ready to quit) and the additional 4-week motivational interviewing before 1-year quitting counseling (group B, who were ambivalent about quitting), respectively. The outcomes were self-reported continuous abstinence at 30-day, 6-month, and 1-year follow up. Logistic regression was applied to estimate the effect of potential factors, including motivational enhancement, on cessation outcome.

RESULTS

At baseline, adolescents in group B had a lower motivation to quit than those in group A (p < 0.001). The successful quit rates at 30-day, 6-month, and 1-year follow up were 37.2%, 12.8%, and 11.4% in group A and 33.7%, 15.2%, and 11.2% in group B, respectively. After adjusting factors as appropriate, successful quit rates in group B were not significantly different from the rates in group A. Higher self-efficacy increased the successful quit rate at 30-day, 6-month, and 1-year follow up, similar in subgroup analysis by gender. Never-drinking showed significant association with 30-day successful quit in the whole population and among boys. The lower number of smoking triggers was associated with an increased 30-day successful quit rate among boys only.

CONCLUSIONS

Counseling for motivational enhancement could be a promising approach for better quitting outcomes. Improving self-efficacy and eliminating smoking triggers should be continuously strengthened during the quitting process.

Tobacco cessation interventions for young people

BACKGROUND

Most tobacco control programmes for adolescents are based around prevention of uptake, but teenage smoking is still common. It is unclear if interventions that are effective for adults can also help adolescents to quit. This is the update of a Cochrane Review first published in 2006.

OBJECTIVES

To evaluate the effectiveness of strategies that help young people to stop smoking tobacco.

SEARCH METHODS

We searched the Cochrane Tobacco Addiction Group's Specialized Register in June 2017. This includes reports for trials identified in CENTRAL, MEDLINE, Embase and PsyclNFO.

SELECTION CRITERIA

We included individually and cluster-randomized controlled trials recruiting young people, aged under 20 years, who were regular tobacco smokers. We included any interventions for smoking cessation; these could include pharmacotherapy, psycho-social interventions and complex programmes targeting families, schools or communities. We excluded programmes primarily aimed at prevention of uptake. The primary outcome was smoking status after at least six months' follow-up among those who smoked at baseline.

DATA COLLECTION AND ANALYSIS

Two review authors independently assessed the eligibility of candidate trials and extracted data. We evaluated included studies for risk of bias using standard Cochrane methodology and grouped them by intervention type and by the theoretical basis of the intervention. Where meta-analysis was appropriate, we estimated pooled risk ratios using a Mantel-Haenszel fixed-effect method, based on the quit rates at six months' follow-up.

MAIN RESULTS

Forty-one trials involving more than 13,000 young people met our inclusion criteria (26 individually randomized controlled trials and 15 cluster-randomized trials). We judged the majority of studies to be at high or unclear risk of bias in at least one domain. Interventions were varied, with the majority adopting forms of individual or group counselling, with or without additional self-help materials to form complex interventions. Eight studies used primarily computer or messaging interventions, and four small studies used pharmacological interventions (nicotine patch or gum, or bupropion). There was evidence of an intervention effect for group counselling (9 studies, risk ratio (RR) 1.35, 95% confidence interval (CI) 1.03 to 1.77), but not for individual counselling (7 studies, RR 1.07, 95% CI 0.83 to 1.39), mixed delivery methods (8 studies, RR 1.26, 95% CI 0.95 to 1.66) or the computer or messaging interventions (pooled RRs between 0.79 and 1.18, 9 studies in total). There was no clear evidence for the effectiveness of pharmacological interventions, although confidence intervals were wide (nicotine replacement therapy 3 studies, RR 1.11, 95% CI 0.48 to 2.58; bupropion 1 study RR 1.49, 95% CI 0.55 to 4.02). No subgroup precluded the possibility of a clinically important effect. Studies of pharmacotherapies reported some adverse events considered related to study treatment, though most were mild, whereas no adverse events were reported in studies of behavioural interventions. Our certainty in the findings for all comparisons is low or very low, mainly because of the clinical heterogeneity of the interventions, imprecision in the effect size estimates, and issues with risk of bias.

AUTHORS' CONCLUSIONS

There is limited evidence that either behavioural support or smoking cessation medication increases the proportion of young people that stop smoking in the long-term. Findings are most promising for group-based behavioural interventions, but evidence remains limited for all intervention types. There continues to be a need for well-designed, adequately powered, randomized controlled trials of interventions for this population of smokers.

Physical Activity and Quit Motivation Moderators of Adolescent Smoking Reduction

OBJECTIVES

We examined participant characteristics as moderators of adolescents' smoking cessation outcomes as a function of intervention: Not-on-Tobacco (N-O-T), N-O-T with a physical activity (PA) module (N-O-T+FIT), or Brief Intervention (BI).

METHODS

We randomly assigned youth (N = 232) recruited from public high schools to an intervention, and measured their baseline levels of PA and motivation to quit. The number of cigarettes/day for weekdays and weekends was obtained at baseline and 3-month follow-up.

RESULTS

Across timepoints, cigarette use declined for youth in N-O-T (p = .007) and N-O-T+FIT (ps < .02), but not BI (n.s.). For N-O-T+FIT youth, the steepest declines in weekday smoking occurred for those with high PA levels (p = .02). Weekend cigarette use decreased for N-O-T+FIT youth with moderate-high levels of intrinsic motivation to quit (ps < .04).

CONCLUSIONS

Adolescents may benefit from interventions designed to address the barriers faced during a quit attempt, including their motivation to make a change and their engagement in other healthy behaviors such as physical activity.

Assessment of pain in adolescents: Influence of gender, smoking status and tobacco abstinence

PURPOSE

We examined sex differences between smokers and nonsmokers in pain threshold, tolerance, and intensity and the effect of pain on cardiovascular measures, withdrawal, and craving during acute smoking abstinence.

METHODS

Ninety-six (53 smokers, 43 nonsmokers) adolescents completed the Cold Pressor Task (CPT) to assess pain responses after minimal (1h) and 42-hour smoking deprivation. Vital signs and craving were assessed before and after CPT completion.

RESULTS

Smokers, compared to nonsmokers, had significantly lower pain tolerance (p<0.01) and pain threshold (p<0.001). Female smokers had significantly lower pain tolerance prior to, and following, 42-hour deprivation compared to male smokers (p's<0.01), male nonsmokers (p's<0.01), and female nonsmokers (p's<0.001), while male smokers demonstrated significantly decreased pain tolerance following 42-hour deprivation (p<0.05). Additionally, during minimal deprivation, at time of hand removal, female smokers had higher pain intensity compared to female nonsmokers (p<0.05) and male smokers (p<0.01). Withdrawal was not significantly correlated with any CPT measures or subjective pain during or following minimal deprivation or acute abstinence. Craving was associated with pain 15s after hand submersion (p=0.007) at 42-hour deprivation.

CONCLUSIONS

Smokers had a lower pain threshold than non-smokers, with female smokers demonstrating lower pain tolerance during minimal deprivation than all comparison groups, and, continuing to have diminished pain tolerance compared to female nonsmokers following 42h of abstinence. Male smokers demonstrated tobacco-deprivation-induced reductions in pain tolerance. Further study of pain-related factors that may contribute to relapse and maintenance of smoking behaviors, and mechanisms of these relationships among adolescent smokers is warranted.

See Me Smoke-Free: Protocol for a Research Study to Develop and Test the Feasibility of an mHealth App for Women to Address Smoking, Diet, and Physical Activity

BACKGROUND

This paper presents the protocol for an ongoing research study to develop and test the feasibility of a multi-behavioral mHealth app. Approximately 27 million women smoke in the US, and more than 180,000 women die of illnesses linked to smoking annually. Women report greater difficulties quitting smoking. Concerns about weight gain, negative body image, and low self-efficacy may be key factors affecting smoking cessation among women. Recent studies suggest that a multi-behavioral approach, including diet and physical activity, may be more effective at helping women quit. Guided imagery has been successfully used to address body image concerns and self-efficacy in our 3 target behaviors-exercise, diet and smoking cessation. However, it has not been used simultaneously for smoking, diet, and exercise behavior in a single intervention. While imagery is an effective therapeutic tool for behavior change, the mode of delivery has generally been in person, which limits reach. mHealth apps delivered via smart phones offer a unique channel through which to distribute imagery-based interventions.

OBJECTIVE

The objective of our study is to evaluate the feasibility of an mHealth app for women designed to simultaneously address smoking, diet, and physical activity behaviors. The objectives are supported by three specific aims: (1) develop guided imagery content, user interface, and resources to reduce weight concern, and increase body image and self-efficacy for behavior change among women smokers, (2) program a prototype of the app that contains all the necessary elements of text, graphics, multimedia and interactive features, and (3) evaluate the feasibility, acceptability, and preliminary efficacy of the app with women smokers.

METHODS

We created the program content and designed the prototype application for use on the Android platform in collaboration with 9 participants in multiple focus groups and in-depth interviews. We programmed and tested the application's usability with 6 participants in preparation for an open, pre- and posttest trial. Currently, we are testing the feasibility and acceptability of the application, evaluating the relationship of program use to tobacco cessation, dietary behaviors, and physical activity, and assessing consumer satisfaction with approximately 70 women smokers with Android-based smart phones.

RESULTS

The study was started January 1, 2014. The app was launched and feasibility testing began in April 1, 2015. Participants were enrolled from April 1-June 30, 2015. During that time, the app was downloaded over 350 times using no paid advertising. Participants were required to use the app "most days" for 30 days or they would be dropped from the study. We enrolled 151 participants. Of those, 78 were dropped or withdrew from the study, leaving 73 participants. We have completed the 30-day assessment, with a 92% response rate. The 90-day assessment is ongoing. During the final phase of the study, we will be conducting data analyses and disseminating study findings via presentations and publications. Feasibility will be demonstrated by successful participant retention and a high level of app use. We will examine individual metrics (eg, duration of use, number of screens viewed, change in usage patterns over time) and engagement with interactive activities (eg, activity tracking).

CONCLUSIONS

We will aggregate these data into composite exposure scores that combine number of visits and overall duration to calculate correlations between outcome and measures of program exposure and engagement. Finally, we will compare app use between participants and non-participants using Google Analytics.

Gender differences in a randomized controlled trial treating tobacco use among adolescents and young adults with mental health concerns

INTRODUCTION

Treatment of tobacco use in mental health settings is rare despite high rates of comorbidity. With a focus on early intervention, we evaluated a tobacco treatment intervention among adolescents and young adults recruited from outpatient, school-based, and residential mental health settings and tested for gender differences.

METHODS

Intervention participants received computerized motivational feedback at baseline, 3 months, and 6 months and were offered 12 weeks of cessation counseling and nicotine patches. Usual care participants received a self-help guide and brief cessation advice. We examined 7-day point prevalence abstinence with biochemical confirmation at 3, 6, and 12 months; smoking reduction; and 24-hr quit attempts.

RESULTS

At baseline, the sample (N = 60, 52% female, mean age = 19.5±2.9 years, 40% non-Hispanic Caucasian) averaged 7±6 cigarettes/day, 62% smoked daily, 38% smoked ≤ 30 min of waking, 12% intended to quit in the next month, 47% had a parent who smoked, and 3 of 5 of participants' closest friends smoked on average. During the 12-month study, 47% of the sample reduced their smoking, 80% quit for 24 hr, and 11%, 13%, and 17% confirmed 7-day point prevalence abstinence at 3-, 6-, and 12-month follow-up, respectively, with no differences by treatment condition (ps > .400). Over time, abstinence was greater among girls (adjusted odds ratio [AOR] = 8.9) than among boys, and abstinence was greater for lighter smokers than heavier smokers (AOR = 4.5) (p < .05). No mental health or other measured variables predicted abstinence.

CONCLUSIONS

Adolescent and young adult smokers with mental health concerns are a challenging group to engage and to effectively treat for tobacco addiction, particularly heavier smokers and boys. Innovative approaches are needed.

With a Little Help from My Friends? Asymmetrical Social Influence on Adolescent Smoking Initiation and Cessation

This study investigates whether peer influence on smoking among adolescents is asymmetrical. We hypothesize that several features of smoking lead peers to have a stronger effect on smoking initiation than cessation. Using data from the National Longitudinal Study of Adolescent Health we estimate a dynamic network model that includes separate effects for increases versus decreases in smoking, while also controlling for endogenous network change. We find that the impact of peer influence is stronger for the initiation of smoking than smoking cessation. Adolescents rarely initiate smoking without peer influence but will cease smoking while their friends continue smoking. We discuss the implications of these results for theories of peer influence and health policy.

Tobacco cessation interventions for young people

BACKGROUND

Most tobacco control programmes for adolescents are based around prevention of uptake, but teenage smoking is still common. It is unclear if interventions that are effective for adults can also help adolescents to quit. This is the second update of a Cochrane review first published in 2006.

OBJECTIVES

To evaluate the effectiveness of strategies that help young people to stop smoking tobacco.

SEARCH METHODS

We searched the Cochrane Tobacco Addiction Group's Specialized Register in February 2013. This includes reports for trials identified in the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE and PsyclNFO.

SELECTION CRITERIA

We included randomized controlled trials, cluster-randomized controlled trials and other controlled trials recruiting young people, aged less than 20, who were regular tobacco smokers. We included any interventions; these could include pharmacotherapy, psycho-social interventions and complex programmes targeting families, schools or communities. We excluded programmes primarily aimed at prevention of uptake. The primary outcome was smoking status after at least six months follow-up among those who smoked at baseline.

DATA COLLECTION AND ANALYSIS

Both authors independently assessed the eligibility of candidate trials and extracted data. Included studies were evaluated for risk of bias using standard Cochrane methodology. Where meta-analysis was appropriate, we estimated pooled risk ratios using a Mantel-Haenszel fixed-effect method, based on the quit rates at longest follow-up.

MAIN RESULTS

Twenty-eight trials involving approximately 6000 young people met our inclusion criteria (12 cluster-randomized controlled trials, 14 randomized controlled trials and 2 controlled trials). The majority of studies were judged to be at high or unclear risk of bias in at least one domain. Many studies combined components from various theoretical backgrounds to form complex interventions.The majority used some form of motivational enhancement combined with psychological support such as cognitive behavioural therapy (CBT) and some were tailored to stage of change using the transtheoretical model (TTM). Three trials based mainly on TTM interventions achieved moderate long-term success, with a pooled risk ratio (RR) of 1.56 at one year (95% confidence interval (CI) 1.21 to 2.01). The 12 trials that included some form of motivational enhancement gave an estimated RR of 1.60 (95% CI 1.28 to 2.01). None of the 13 individual trials of complex interventions that included cognitive behavioural therapy achieved statistically significant results, and results were not pooled due to clinical heterogeneity. There was a marginally significant effect of pooling six studies of the Not on Tobacco programme (RR of 1.31, 95% CI 1.01 to 1.71), although three of the trials used abstinence for as little as 24 hours at six months as the cessation outcome. A small trial testing nicotine replacement therapy did not detect a statistically significant effect. Two trials of bupropion, one testing two doses and one testing it as an adjunct to NRT, did not detect significant effects. Studies of pharmacotherapies reported some adverse events considered related to study treatment, though most were mild, whereas no adverse events were reported in studies of behavioural interventions.

AUTHORS' CONCLUSIONS

Complex approaches show promise, with some persistence of abstinence (30 days point prevalence abstinence or continuous abstinence at six months), especially those incorporating elements sensitive to stage of change and using motivational enhancement and CBT. Given the episodic nature of adolescent smoking, more data is needed on sustained quitting. There were few trials with evidence about pharmacological interventions (nicotine replacement and bupropion), and none demonstrated effectiveness for adolescent smokers. There is not yet sufficient evidence to recommend widespread implementation of any one model. There continues to be a need for well-designed adequately powered randomized controlled trials of interventions for this population of smokers.

Efficacy of a mobile application for smoking cessation in young people: study protocol for a clustered, randomized trial

BACKGROUND

Tobacco consumption is the most preventable cause of morbidity-mortality in the world. One aspect of smoking cessation that merits in-depth study is the use of an application designed for smartphones (app), as a supportive element that could assist younger smokers in their efforts to quit. To assess the efficacy of an intervention that includes the assistance of a smoking cessation smartphone application targeted to young people aged 18 to 30 years who are motivated to stop smoking.

METHODS/DESIGN

Cluster randomised clinical trial.

SETTING

Primary Health Care centres (PHCCs) in Catalonia. Analyses based on intention to treat.

PARTICIPANTS

motivated smokers of 10 or more cigarettes per day, aged 18 to 30 years, consulting PHCCs for any reason and who provide written informed consent to participate in the trial. Intervention group will receive a 6-month smoking cessation programme that implements recommendations of a Clinical Practice Guideline, complemented with a smartphone app designed specifically for this programme. Control group will receive the usual care. The outcome measure will be abstinence at 12 months confirmed by exhaled-air carbon monoxide concentration of at least 10 parts per million at each control test.

DISCUSSION

To our knowledge this is the first randomised controlled trial of a programme comparing the efficacy of usual care with a smoking cessation intervention involving a mobile app. If effective, the modality could offer a universal public health management approach to this common health concern.

TRIAL REGISTRATION

NCT01734421.

Parental influence on adolescent smoking cessation: is there a gender difference?

We examined the association of parental disapproval of adolescent smoking and parental smoking status, with past smoking quit behaviors among daily-smoking, high school-aged adolescents, and also tested whether these associations differ for boys and girls. Adolescent regular smokers (N=253) completed questions on smoking behaviors, past smoking cessation behaviors, parental disapproval of smoking, and parental smoking. Past smoking cessation behaviors were defined as "the number of quit attempts that lasted longer than 24 hours" and "the longest number of days of abstinence". Logistic regression analyses showed that for all adolescents, even having one smoking parent was associated with decreased odds of being abstinent for longer than 2 days. However, for girls, not having any smoking parents was associated with greater duration of abstinence (>2 weeks). Having both parents, compared with not having any parents disapprove of smoking, was associated with greater number of quit attempts in boys, but this effect was not found in girls. The results indicate that parents have a salient role in adolescent smoking cessation behaviors, and this association appears to be gender-specific. However, further research is needed to understand the mechanisms that explain gender differences in parental influence on adolescent smoking cessation behaviors.

Predictors of intention to quit smoking in Hong Kong secondary school children

BACKGROUND

Behavioral theories suggest that a past quit attempt influences psycho-social determinants to predict smokers' intention to quit, although no study has tested the hypothesis among youth smokers.

METHODS

A sample of 1561 Chinese secondary students, who were current smokers, were collected in a cross-sectional school-based survey in Hong Kong.

RESULTS

For the 943 students with past quit attempts, those with lower daily cigarette consumption; who perceived smoking would not elicit positive social responses from others; who had one parent/teacher who prohibited them to smoke; who were aware of the health hazards of smoking and being male smokers, were more likely to have an intention to quit smoking. For the 618 students without a past quit attempt, those who did not perceive any benefit from smoking; who had parents and teachers to prohibit them to smoke and who received social support to quit, were more likely to have an intention to quit smoking.

CONCLUSION

Strengthening the prohibition of smoking and providing social support may help initiate the intention to quit among youth smokers without a past quit attempt, while de-normalizing social images of smoking, providing information about the health hazards of smoking and relieving nicotine addiction may sustain quitting intentions among youth smokers with past quit attempts.

Examination of a Process Model of Adolescent Smoking Self-Change Efforts in Relation to Gender

Little information describes how adolescents change their smoking behavior. This study investigated the role of gender in the relationship of motivation and cognitive variables with adolescent smoking self-change efforts. Self-report and semi-structured interview data from a prospective study of smoking self-change efforts were examined among 98 adolescent smokers ages 14-18 (55% female). Social disapproval motives and short-term consequence reasons for quitting, quit self-efficacy and intentions to quit were modeled in relation to prospective self-quit attempts assessed at a 6-month follow-up, separately by gender. Hypothesized mediating relationships were not supported although gender differences were noted. Social influence motives related to intention to quit and prospective self-quit attempts among girls. For boys, intention to quit predicted making a self-quit attempt. Findings emphasize the importance of examining adolescent models separately by gender and contribute to understanding of mechanisms involved in adolescent smoking change efforts.

Smoking cessation for adolescents: a review of pharmacological and psychosocial treatments

Unlike the vast literature on smoking cessation in adults, research in adolescents has gained significant attention only within the last decade. Even with this increase in focus, research into pharmacological aids for smoking cessation in adolescents (e.g., nicotine replacement therapy, bupropion) is a more recent phenomenon and has produced only modest results. While more extensive, much of the research on behaviorally- or psychosocially-based adolescent smoking cessation interventions has been limited by a lack of control for contact time, biochemical verification of self-reported abstinence, and/or a theoretical focus for the interventions. The MEDLINE, PubMed, PSYCInfo, EMBASE, ERIC, CINHAL, Cochrane CENTRAL and Systematic Review databases were searched for articles relevant to adolescent smoking cessation treatment. After briefly examining the adolescent smoking cessation research prior to 2000, more recent developments in pharmacological aids and psychological treatment will be reviewed. Investigations have made progress in elucidating efficacious treatments for adolescent smokers, but much work remains to be done in both pharmacological and non-pharmacological areas of treatment. With the current state of the literature as a guide, future directions for research into smoking cessation for adolescents will be proposed.

Adolescent reasons for quitting smoking: initial psychometric evaluation

Most adolescent smokers report intentions to quit, and the majority attempt cessation. However, little is known regarding the relationship between adolescent motives for cessation and smoking cessation efforts. To this end, the present study describes an initial evaluation of the psychometric characteristics of the Adolescent Reasons for Quitting scale (ARFQ), a measure of adolescent motives for smoking cessation. Participants were 109 current smoking high school students assessed at baseline and 6-month follow-up. The ARFQ item content and format was developed in a separate qualitative study with 36 high school students who had previously attempted to quit smoking. Exploratory factor analyses of ARFQ items yielded 3 subscales: Short-Term Consequences, Social Disapproval, and Long-Term Concerns. Validation analyses were conducted in relation to concurrent intentions to stop smoking and prospective smoking cessation attempts, providing evidence of concurrent, predictive, and discriminant validity. In particular, the Social Disapproval and Long-Term Concerns subscales significantly predicted subsequent cessation attempts. As such, the ARFQ may prove valuable for informing interventions to encourage adolescent smoking cessation.

Smoking cessation attempts among adolescent smokers: a systematic review of prevalence studies

OBJECTIVE

To synthesise estimates of the prevalence of cessation attempts among adolescent smokers generally, and according to age and level of cigarette consumption.

DATA SOURCES

PubMed, ERIC, and PsychInfo databases and Internet searches of central data collection agencies.

STUDY SELECTION

National population-based studies published in English between 1990 and 2005 reporting the prevalence, frequency and/or duration of cessation attempts among smokers aged >or=10 to <20 years.

DATA EXTRACTION

Five reviewers determined inclusion criteria for full-text reports. One reviewer extracted data on the design, population characteristics and results from the reports.

DATA SYNTHESIS

In total, 52 studies conformed to the inclusion criteria. The marked heterogeneity that characterised the study populations and survey questions precluded a meta-analysis. Among adolescent current smokers, the median 6-month, 12-month and lifetime cessation attempt prevalence was 58% (range: 22-73%), 68% (range 43-92%) and 71% (range 28-84%), respectively. More than half had made multiple attempts. Among smokers who had attempted cessation, the median prevalence of relapse was 34, 56, 89 and 92% within 1 week, 1 month, 6 months, and 1 year, respectively, following the longest attempt. Younger (age<16 years) and non-daily smokers experienced a similar or higher prevalence of cessation attempts compared with older (age >or=16 years) or daily smokers. Moreover, the prevalence of relapse by 6 months following the longest cessation attempt was similar across age and smoking frequency.

CONCLUSIONS

The high prevalence of cessation attempts and relapse among adolescent smokers extends to young adolescents and non-daily smokers. Cessation surveillance, research and program development should be more inclusive of these subgroups.

Combining cognitive behavioral therapy with contingency management for smoking cessation in adolescent smokers: a preliminary comparison of two different CBT formats

This pilot study evaluated the optimal format of cognitive behavioral therapy (CBT) to combine with contingency management (CM) in a four-week, high school-based smoking cessation program. Thirty-four adolescent smokers received a standard weekly version of CBT or a frequent brief behavioral intervention. Results indicate a trend toward a higher seven-day point prevalence end-of-treatment abstinence rate and percent days abstinent during treatment in the CBT condition. In addition, significantly more participants in the CBT group completed treatment. These preliminary results suggest that when combined with CM, the standard weekly format of CBT is more acceptable to adolescent smokers.

Tobacco cessation interventions for young people

BACKGROUND

Teenage smoking prevalence is around 15% in developing countries (with wide variation from country to country), and around 26% in the UK and USA. Although most tobacco control programmes for adolescents are based around prevention of uptake, there are also a number of initiatives to help those who want to quit. Since those who do not smoke before the age of 20 are significantly less likely to start as adults, there is a strong case for programmes for young people that address both prevention and treatment.

OBJECTIVES

To evaluate the effectiveness of strategies that help young people to stop smoking tobacco.

SEARCH STRATEGY

We searched the Cochrane Central Register of Controlled Trials (CENTRAL) and the Cochrane Tobacco Addiction Group's Specialized Register, MEDLINE, EMBASE, PsyclNFO, ERIC, CINAHL, and the bibliographies of identified trials. We also searched the 'grey' literature (unpublished materials), and contacted authors and experts in the field where necessary.

SELECTION CRITERIA

Types of studies: Randomized controlled trials, cluster-randomized controlled trials and controlled trials.

TYPES OF PARTICIPANTS

Young people, aged less than 20, who are regular tobacco smokers. Types of interventions: The interventions ranged from simple ones such as pharmacotherapy, targeting individual young people, through complex programmes targeting people or organizations associated with young people (for example, their families or schools), or the community in which young people live. We included cessation programmes but excluded programmes primarily aimed at prevention of uptake. Types of outcome measures: The primary outcome was smoking status at six months follow up, among those who smoked at baseline. We report the definition of cessation used in each trial (e.g seven- or thirty-day point prevalence abstinence, or sustained or prolonged abstinence), and we preferred biochemically verified cessation when that measure was available.

DATA COLLECTION AND ANALYSIS

Both authors independently assessed the eligibility of candidate trials identified by the searches, and extracted data from them. We categorized included trials as being at low, medium or high risk of bias, based on concealment of allocation, blinding (where applicable) and the handling of attrition and losses to follow up. We conducted limited meta-analyses of some of the trials, provided that it was appropriate to group them and provided that there was minimal heterogeneity between them. We estimated pooled odds ratios using the Mantel-Haenszel method, based on the quit rates at longest follow up for trials with at least six months follow up from the start of the intervention.

MAIN RESULTS

We found 15 trials, covering 3605 young people, which met our inclusion criteria (seven cluster-randomized controlled trials, six randomized controlled trials and two controlled trials). Three trials used or tested the transtheoretical model (stages of change) approach, two tested pharmacological aids to quitting (nicotine replacement and bupropion), and the remaining trials used various psycho-social interventions, such as motivational enhancement or behavioural management. The trials evaluating TTM interventions achieved moderate long-term success, with a pooled odds ratio (OR) at one year of 1.70 ( 95% confidence interval (CI) 1.25 to 2.33) persisting at two-year follow up with an OR of 1.38 (95% CI 0.99 to 1.92). Neither of the pharmacological intervention trials achieved statistically significant results (data not pooled), but both were small-scale, with low power to detect an effect. The three interventions (5 trials) which used cognitive behavioural therapy interventions did not individually achieve statistically significant results, although when the three Not on Tobacco trials were pooled the OR 1.87; (95% CI 1.00 to 3.50) suggested some measure of effectiveness. Although the three trials that incorporated motivational interviewing as a component of the intervention achieved a pooled OR of 2.05 (95% CI 1.10 to 3.80), the impossibility of isolating the effect of the motivational interviewing in these trials meant that we could not draw meaningful inferences from that analysis.

AUTHORS' CONCLUSIONS

Complex approaches show promise, with some persistence of abstinence (30 days point prevalence abstinence at six months), especially those incorporating elements sensitive to stage of change. There were few trials with evidence about pharmacological interventions (nicotine replacement and bupropion), and none demonstrated effectiveness for adolescent smokers. Psycho-social interventions have not so far demonstrated effectiveness, although pooled results for the Not on Tobacco trials suggest that that this approach may yet prove to be effective; however, their definition of cessation (one or more smoke-free days) may not adequately account for the episodic nature of much adolescent smoking. There is a need for well-designed adequately powered randomized controlled trials for this population of smokers, with a minimum of six months follow up and rigorous definitions of cessation (sustained and biochemically verified). Attrition and losses to follow up are particularly problematic in trials for young smokers, and need to be kept to a minimum, so that management and interpretation of missing data need not compromise the findings.

What Chinese adolescents think about quitting smoking: a qualitative study

The aim of this study was to investigate the attitudes of Chinese adolescents toward smoking, giving up smoking, and smoking cessation programs presently available. The study was a qualitative study carried out in 2002 by focus groups of 32 male secondary school students in Hong Kong who were either current smokers or had recently given up smoking. Subjects were students (grades 8-10) attending two full-day secondary schools in Hong Kong. Participants did not feel the need to make any serious psychological preparation for quitting. They underestimated the addictive nature of cigarette smoking and felt that they could choose to quit smoking at any time with little difficulty. Several barriers to quitting were reported, including boredom, peer influence, the urge to smoke, school work pressure, the wish to do something with their hands, difficulty in concentrating, and the ready availability of free cigarettes from peers. Those who had attempted to quit smoking (26/32) reported that peer influence and boredom were the main reasons why they started smoking and insisted that willpower and determination could have helped them in their quitting attempt. Participants were unanimous that pressure or encouragement from teachers, parents, or girlfriends did not help them to stay off cigarettes. Most (24/32) of the current smokers knew that smoking cessation services were available in Hong Kong, only 50% (12/24) of those who knew had made use of such services. None of the participants were able to identify any effective way of quitting smoking, though some suggested that the best practical measure was to avoid friends who smoked. The study suggests that attempts to persuade young people to quit smoking might benefit if they were framed to address issues such as the strong influence of their peers, the ease with which tobacco products can be obtained, the casual attitudes of young people toward smoking cessation, the perceived pros and cons of quitting, and (given that underage smoking is frowned upon by many parents and teachers) the need to respect confidentiality when offering support.

Motivation to quit using cigarettes: a review

This review asks why persons decide to quit using cigarettes. We summarize three literatures from five decades, including over 30 data sets grouped by different methodologies: (a) retrospective reports of ex-smokers (n = 15), (b) cross-sectional surveys of current smokers (n = 14), and (c) prospective studies of smokers in cessation studies (n = 6). Taken together, the data strongly suggest that health concern is the primary motive for quit attempts. These data fit with theoretical reasoning that persons wish to control danger and negative affect. The data also suggest that health professionals should continue emphasizing the negative health consequences of smoking to motivate cessation attempts.

Smoking cessation efforts among substance abusing adolescents

Available research demonstrates that substance abusing youth are heavy cigarette smokers for whom the behavior persists into adulthood. As such this population represents an important target for intervention. In order to inform treatment design, the present paper described cessation efforts, including motives and methods for quitting, in a sample of cigarette smoking adolescents who received inpatient or outpatient treatment for substance abuse. The 183 participants were on average 16.2 years old, 45% were females, and 72% were white. Consistent with studies of community and high risk youth samples, the majority of participants had previously attempted cessation, yet reported little success in maintaining abstinence. Health emerged as a frequently endorsed motive for cessation and stopping abruptly (cold turkey) was the most commonly reported strategy for quitting.

Teen smoking cessation

Interest in adolescent smoking cessation has increased dramatically over the past several years, as researchers and practitioners have acknowledged the high rates of adolescents who smoke regularly and the low probability that adolescents who are regular smokers will stop on their own. The evidence base behind smoking cessation interventions for adolescents is also now starting to grow, but unfortunately the studies to date have frequently been plagued by major methodological problems. This paper summarises research conducted on adolescent smoking cessation, notes some of the methodological limitations of prior work, highlights approaches that show promise, discusses some of the challenges involved in addressing adolescent smoking cessation, and makes recommendations for future work.

Health and performance related reasons for wanting to quit: gender differences among teen smokers

Adolescents frequently state health as a broad-ranging reason for wanting to quit smoking. Much less is known regarding performance-related reasons. We hypothesized that more male than female smokers want to quit for performance-related reasons (e.g., to improve athletic performance). As part of a telephone screen to determine eligibility for participation in a cessation trial in Baltimore, Maryland, 1999-2001, 509 teenage smokers [mean age 15.78 +/- 1.65 years (range 11-21), 60.9% female, 32.6% African-American] were asked the open-ended question: "Why do you want to quit?" Responses were subsequently grouped into categories that included health, performance, cost, social influences, setting an example for others, self-efficacy, cosmetics, no perceived positive reinforcement, or unknown reasons. Health was the most commonly stated primary and overall reason for wanting to quit among both boys and girls. Sixty-five percent of teen smokers endorsing health reasons were girls, and 51% of those endorsing performance-related reasons were boys (chi2(2) = 7.78, p = 0.02). Recognizing the greater concern for performance-related issues among boys is important for designing and engaging young smokers into cessation interventions.

Adolescent nicotine dependence and smoking cessation outcomes

The purpose of the present study was to examine adolescent nicotine dependence and its impact on smoking cessation outcomes with two treatments of varying intensity: a brief, self-help intervention and an intensive, multisession, school-based cessation curriculum called Not On Tobacco (N-O-T). A majority (80%) of adolescent smokers in this study were moderately to highly nicotine-dependent, using the Fagerstrom Tolerance Questionnaire. Further, nicotine dependence was positively correlated with duration of smoking and number of cigarettes smoked daily (P<.05). Data showed that the more cigarettes teens smoked daily and the longer they had smoked, the more dependent they were. Some teens (20%), however, had low nicotine dependence despite years of smoking and high smoking rates. Results showed that the relationship between nicotine dependence and cessation outcomes varied by treatment intensity. The brief intervention was successful with only low-dependent smokers, whereas the intensive, multisession, N-O-T intervention was effective with smokers possessing a range of nicotine dependence, including high-dependent smokers.

What motivates adolescent smokers to make a quit attempt?

A sample of 120 adolescent smokers (80 males, 40 females), most of whom were referred by school personnel after being caught with cigarettes at school (n=113), reported motivations for making a quit attempt during a smoking cessation project. Most students (n=76) were randomly assigned to a four session cessation program that included discussion of a number of motivational topics, and the remaining students were assigned to a self-help control group that received a pamphlet recommending strategies for quitting. Reported motivations for quitting did not differ significantly across the two treatment conditions. Concern about future health (73%) was the most popular reason given for making a quit attempt, followed by concern about current health (65%). Concerns about physical appearance (59%), the cost of cigarettes (52%), and athletic performance (51%) were also listed as motivators by a majority of the participants. Future health was the most popular choice for the most important motivator to quit (35%). Females and participants with fewer best friends smoking were more likely to report that the prevalence of non-smoking teenagers, the relationship between smoking and weight, and physical appearance concerns were motivators to quit. African Americans were more likely than Whites to list current health concern as the most important motivator.

Smoking cessation: progress, priorities, and prospectus

The authors review developments in understanding smoking cessation interventions over the past decade. Noteworthy is the unprecedented growth of research and knowledge that has left a deeper understanding of how best to use new and existing behavioral and pharmacologic tools and strategies to help smokers quit. The status of public-health-level interventions is evaluated, questions are raised concerning their efficacy, and suggestions are offered for further refinement of these intervention strategies. Development of cessation guidelines is reviewed, and the state of knowledge concerning behavioral and pharmacologic interventions is summarized. The authors also present agendas for behavioral and pharmacologic research related to smoking cessation and discuss individual difference factors among smokers that may prove to be important in designing new and refining existing treatments.

A review of tobacco smoking in adolescents: treatment implications

OBJECTIVE

To review current data on the tobacco epidemic in adolescents that impact treatment decisions.

METHOD

Epidemiological and pharmacological data, risk factors, characteristics of nicotine use in adolescents, and treatment intervention reports from the literature are discussed.

RESULTS

Of students in grades 9 to 12, 42.7% have used tobacco; 75% of teenage smokers will smoke as adults. Environmental and biological factors influence adolescent smoking, including sociodevelopmental aspects of adolescence, psychiatric history, genetic background, ethnic and gender characteristics, drug effects, and regulatory factors. Criteria for nicotine dependence are currently based on the experience with adult smokers. Overall, smoking cessation treatment for adolescents has been disappointing because of low participation, high attrition, and low quit rates.

CONCLUSION

Characterization of nicotine dependence and further assessment of the safety and efficacy of pharmacological treatment interventions in adolescents are needed given the formidable challenge of the tobacco epidemic in adolescents.

Perceived invulnerability and cigarette smoking among adolescents

Adolescent perceptions of invulnerability toward smoking and nonsmoking-related health risks were examined among 442 continuation high school students. Smokers were less likely than nonsmokers to report feeling invulnerable to both smoking and nonsmoking-related health risks. Among the smokers, those who reported feeling invulnerable to smoking-related health risks, compared to those who reported feeling vulnerable, smoked fewer cigarettes, were less addicted, were less likely to intend to smoke more in the future, attempted to quit fewer times in the past, valued their health more, and reported higher public body awareness. In a multiple logistic regression model, only high public body awareness, fewer previous attempts to quit, and being in the action stage of change (compared to being in the precontemplation stage of change) remained significant independent concurrent predictors of being in the invulnerable group. These results suggest, contrary to some previous work, that perceived invulnerability may be predictive of quitting tobacco use and may reflect relative invulnerability; that is, lighter use of tobacco.

Self-initiated quitting among adolescent smokers

OBJECTIVES

This paper reviews the literature regarding predictors of adolescent self-initiated smoking cessation and investigates self-initiated smoking cessation among a large sample of alternative high school youth in southern California. Youth transfer to alternative schools because of academic or behavioral problems, and they are at relatively high risk for cigarette smoking.

METHODS

Several demographic (e.g., gender), behavioral (e.g., level of smoking), and psychosocial (e.g., risk-taking) predictors of adolescent smoking cessation were investigated. The alternative high school cohort provided a sufficient sample size of quitters (defined as no use in the past 30 days, measured after a 1-year period) to permit a prospective examination of adolescent smoking cessation.

RESULTS

Although nine demographic, behavioral, or psychosocial variables discriminated among quitters and nonquitters in univariate analyses, only level of baseline smoking, smoking intention, and perceived stress were predictors in a final multivariable model.

CONCLUSIONS

Based on the literature review and findings among the cohort, smoking cessation programs for adolescents should include counteraction of problem-prone attitudes, support of wellness attitudes, provision of motivation to quit strategies, and assistance with overcoming withdrawal symptoms.