Tobacco cessation interventions for young people

Pharmacological interventions for promoting smoking cessation during pregnancy

BACKGROUND

Smoking in pregnancy is a substantial public health problem. When used by non-pregnant smokers, pharmacotherapies [nicotine replacement therapy (NRT), bupropion and varenicline] are effective treatments for smoking cessation, however, their efficacy and safety in pregnancy remains unknown.

OBJECTIVES

To determine the efficacy and safety of smoking cessation pharmacotherapies, including NRT, varenicline and bupropion (or any other medications) when used to support smoking cessation in pregnancy.

SEARCH METHODS

We searched the Pregnancy and Childbirth Group's Trials Register (5 March 2012), checked references of retrieved studies and contacted authors in the field.

SELECTION CRITERIA

Randomised controlled trials (RCTs) with designs that permit the independent effects of any type of NRT (e.g. patch, gum etc.) or any other pharmacotherapy on smoking cessation to be ascertained were eligible for inclusion. Trials must provide very similar (ideally identical) levels of behavioural support or cognitive behaviour therapy (CBT) to participants in active drug and comparator trial arms.The following RCT designs are considered acceptable.Placebo RCTs: any form of NRT or other pharmacotherapy, with or without behavioural support/CBT, or brief advice compared with placebo NRT and additional support of similar intensity.RCTs providing a comparison between i) behavioural support/CBT or brief advice and ii) any form of NRT or other pharmacotherapy added to behavioural support of similar (ideally identical) intensity.Parallel- or cluster-randomised design trials are eligible for inclusion. However, quasi-randomised, cross-over and within-participant designs are not eligible for inclusion due to the potential biases associated with these designs.

DATA COLLECTION AND ANALYSIS

Two review authors independently assessed trials for inclusion and risk of bias and extracted data. Two assessors independently extracted data and cross checked individual outcomes of this process to ensure accuracy. The primary efficacy outcome was smoking cessation in later pregnancy (in all but one trial, at or around delivery); safety was assessed by seven birth outcomes that indicated neonatal well being and we also collated data on adherence.

MAIN RESULTS

Six trials of NRT enrolling 1745 pregnant smokers were included; we found no trials of varenicline or bupropion. No statistically significant difference was seen for smoking cessation in later pregnancy after using NRT as compared to control (risk ratio (RR) 1.33, 95% confidence interval (CI) 0.93 to 1.91, six studies, 1745 women). Subgroup analysis comparing placebo-RCTs with those which did not use placebos found that efficacy estimates for cessation varied with trial design (placebo RCTs, RR 1.20, 95% CI 0.93 to 1.56, four studies, 1524 women; non-placebo RCTs, RR 7.81, 95% CI 1.51 to 40.35, two studies, 221 women; P value for random-effects subgroup interaction test = 0.03). There were no statistically significant differences in rates of miscarriage, stillbirth, premature birth, birthweight, low birthweight, admissions to neonatal intensive care or neonatal death between NRT or control groups.

AUTHORS' CONCLUSIONS

Nicotine replacement therapy is the only pharmacotherapy for smoking cessation that has been tested in RCTs conducted in pregnancy. There is insufficient evidence to determine whether or not NRT is effective or safe when used to promote smoking cessation in pregnancy or to determine whether or not using NRT has positive or negative impacts on birth outcomes. Further research evidence of efficacy and safety is needed, ideally from placebo-controlled RCTs that investigate higher doses of NRT than were tested in the included studies.

Results of a transtheoretical model-based alcohol, tobacco and other drug intervention in middle schools

BACKGROUND

Early use of alcohol, tobacco, and other drugs threatens the physical and mental well-being of students and continued use negatively affects many areas of development. An internet-based, tailored intervention based on the Transtheoretical Model of Behavior Change was delivered to middle school students to reduce alcohol, tobacco, and other drug use. This internet-based approach requires very little faculty and staff time, which is efficient given curricular demands.

METHODS

Twenty-two middle schools in the United States were matched and randomly assigned to either the intervention or control conditions (N=1590 students who had ever used substances). Participants received one pre-test assessment, three thirty-minute intervention sessions over three months, and two post-test assessments (3 and 14 months after pre-test, respectively).

RESULTS

Random effects logistic models showed significant treatment effects for the intervention group when compared to the control group at the 3-month post-test.

CONCLUSIONS

This program has the potential to be applied as stand-alone practice or as part of more intensive interventions to promote substance use cessation.

Enhanced motivational interviewing versus brief advice for adolescent smoking cessation: results from a randomized clinical trial

BACKGROUND

Motivational interviewing (MI) is widely used for adolescent smoking cessation but empirical support for this approach is mixed.

METHODS

Adolescent cigarette smokers 14-18 years old (N=162) were recruited from medical, school, and community settings and randomly assigned to enhanced MI or brief advice (BA) for smoking cessation. MI comprised an in-person individual session, a telephone booster session one week later, and a brief telephone-based parent intervention. BA consisted of standardized brief advice to quit smoking. Assessments occurred at baseline, post-treatment and at 1-, 3-, and 6-month follow ups.

RESULTS

Biochemically-confirmed 7-day point prevalence abstinence rates were low (e.g., 4.5% for MI; 1.4% for BA at 1 month) and did not differ significantly by group at any follow up. Only those in MI reported significant decreases in cigarettes smoked per day (CPD) from baseline to 1 month. At 3 and 6 months, smokers in both groups reported significantly reduced CPD with no differences between groups. MI reduced perceived norms regarding peer and adult smoking rates, while BA had no effect on normative perceptions. No group differences emerged for self-reported motivation or self-efficacy to quit smoking.

CONCLUSIONS

Findings support the efficacy of MI for addressing normative misperceptions regarding peer and adult smoking and for modestly reducing CPD in the short-term; however, these effects did not translate to greater smoking abstinence. MI may have more promise as a prelude to more intensive smoking intervention with adolescents than as a stand-alone intervention.

BAP updated guidelines: evidence-based guidelines for the pharmacological management of substance abuse, harmful use, addiction and comorbidity: recommendations from BAP

The British Association for Psychopharmacology guidelines for the treatment of substance abuse, harmful use, addiction and comorbidity with psychiatric disorders primarily focus on their pharmacological management. They are based explicitly on the available evidence and presented as recommendations to aid clinical decision making for practitioners alongside a detailed review of the evidence. A consensus meeting, involving experts in the treatment of these disorders, reviewed key areas and considered the strength of the evidence and clinical implications. The guidelines were drawn up after feedback from participants. The guidelines primarily cover the pharmacological management of withdrawal, short- and long-term substitution, maintenance of abstinence and prevention of complications, where appropriate, for substance abuse or harmful use or addiction as well management in pregnancy, comorbidity with psychiatric disorders and in younger and older people.

The analysis of tobacco consumption in Croatia--are we successfully facing the epidemic?

Tobacco is the largest cause of morbidity and mortality. The aim of this study is to analyse several health and economically related indicators of tobacco consumption: smoking prevalence, standardized death rates (SDRs) from lung cancer and the proportion of GDP spent on tobacco in Croatia and other transitional countries--the Czech Republic, Slovakia, Poland, Hungary, Slovenia, Romania, and Bulgaria. The overall smoking prevalence in Croatia decreased by 5.2% during 1994-2005, more among females (-9.9%) than males (-0.3%). There is no significant difference in the smoking prevalence between Croatia (27.4%) and other countries. However, 33.8% of Croatian males smoked during 2002-2005, more than in Romania and the Czech Republic, and less than in Hungary and Poland. The prevalence of female smoking (21.7%) in Croatia is similar to the female smoking prevalence in Poland, the Czech Republic, and Hungary, but male smoking is predominant in all countries. The proportion of smokers among youth is above 20% and it is the highest in the Czech Republic (29.7%), followed by Hungary (26.7%), Slovenia (24.9%), Croatia (24.1%), and Poland (21.5%). The proportion of smokers among girls is higher than among boys in Slovenia, Hungary, the Czech Republic, and Croatia, contrary to Slovakia, Bulgaria, and Poland where boys smoke slightly more. There is no significant difference between the prevalence of smoking among girls in Croatia and Bulgaria, Poland, the Czech Republic, Hungary, Slovenia, and Slovakia. According to the SDR from lung cancer in males (70.3/100,000), Croatia is ranked high assuming the 3rd place, after Hungary (99.7) and Poland (72.0). With a SDR of 15.9/100,000 for females, Croatia is ranked slightly better--5th place. Tobacco consumption continues to be a major public health problem in transitional countries. Croatia conducted several campaigns and programmes in the past. However, results reveal that current anti-tobacco strategies are ineffective in reducing the smoking prevalence among men and youth. Men do not smoke less than a decade ago and, despite the observed decline among women, increasing trends are observed among teenage girls. Croatia should apply a comprehensive approach that would include raising awareness of health risks, restriction of smoking in public places, higher taxing, implementing stricter bans on advertising and promotion of tobacco as well as supporting smoking cessation. This last measure is believed to bring about some results in the medium term in targeted population groups, provided that it is supported by all health professionals. Otherwise, we may expect progress at the population level in the field of social stigmatization of smoking and wider intolerance to second-hand smoke. The full impact of smoking on the population health is yet to be seen and in the future it will undoubtedly remain one of the major contributors to the poor public health situation in Croatia.

Associations between adult attachment style and health risk behaviors in an adult female primary care population

OBJECTIVE

To examine the relationship between adult attachment style and health risk behaviors among adult women in a primary care setting.

METHODS

In this analysis of a population of women enrolled in a large health maintenance organization (N=701), we examined the relationship between anxious and avoidant dimensions of adult attachment style and a variety of sexual, substance-related, and other health risk behaviors. After conducting descriptive statistics of the entire population, we determined the relationships between the two attachment dimensions and health behaviors using multiple regression analyses in which we controlled for demographic and socioeconomic factors.

RESULTS

After adjustment for covariates, the anxious dimension of attachment style was significantly associated with increased odds of self-report of having sex without knowing a partner's history, having multiple (≥2) male partners in the past year, and history of having a sexually transmitted infection (ORs [95% CIs]=1.11 [1.03, 1.20], 1.23 [1.04, 1.45]; and 1.17 [1.05, 1.30], respectively). The avoidant attachment dimension was associated with increased odds of being a smoker and not reporting regular seatbelt use (ORs [95% CIs]=1.15 [1.01, 1.30] and 1.16 [1.01, 1.33], respectively).

CONCLUSIONS

Both anxious and avoidant dimensions of attachment were associated with health risk behaviors in this study. This framework may be a useful tool to allow primary care clinicians to guide screening and intervention efforts.

Psychosocial factors in adolescent nicotine dependence symptoms: a sample of high school juniors who smoke daily

Cross-sectionally examined seven theory-guided psychosocial factors associated with nicotine dependence symptoms in a representative self-report survey of 794 Washington State high school junior daily smokers (93% participation). Outcomes were four nicotine dependence symptoms. Results showed that low self-efficacy for quitting smoking and being around adults who smoke were associated with a 3.48-10.35 and a 1.47-1.77 times higher odds, respectively, of each of the four nicotine dependence symptoms. These results, needing replication in a longitudinal study, suggest that interventions designed to enhance self-efficacy to quit smoking and counter adult smoking influences might reduce adolescent nicotine dependence.

Socioeconomic status and tobacco consumption among adolescents: a multilevel analysis of Argentina's Global Youth Tobacco Survey

INTRODUCTION

The relationship between poverty and tobacco consumption among adolescents has not been extensively studied, and what evidence exists has come almost entirely from developed countries. Moreover, the impact of contextual factors--such as school-level poverty--remains unclear.

METHODS

We obtained information about smoking behavior from the Global Youth Tobacco Survey in Argentina in 2007. School-level characteristics were derived by matching schools to census areas from the 2001 Census. Additional school-level information was obtained from the Ministry of Education. Random intercept models were used to evaluate the associations of school-level variables (poverty in the census area of the school, school receipt of social assistance, and public or private status) with current smoking, intention to quit, secondhand smoke exposure outside the home, support for smoke-free laws, purchase of single cigarettes among smokers, and susceptibility to smoking in 5 years among nonsmokers.

RESULTS

After controlling for age and sex, students attending schools receiving social assistance were more likely to smoke (odds ratio [OR] 1.35, 95% CI 1.02-1.80) and to purchase loose cigarettes (OR 1.66, 95% CI 1.08-2.54), whereas school poverty was significantly associated with secondhand smoke exposure (OR 1.27, 95% CI 1.04-1.58).

CONCLUSION

This study shows that an association exists between unfavorable contextual school characteristics and tobacco consumption and related measures among youth in Argentina. Efforts to prevent smoking may need to address the school-level factors that place youth at higher risk.

Water pipe smoking among the young: the rebirth of an old tradition

This article provides information on the growing threat of water pipe smoking (hookah) around the world and in the United States. Historically an activity of Middle Eastern older adults, the most recent growth in water pipe smoking (WPS) has been among adolescents and young adults. Associated with its use is a growing list of health problems. To date no interventions have been specifically designed for this form of tobacco use and they are sorely needed. Nurses must continue to teach No Tobacco Use in any form and that means no water pipe smoking must be part of every health message.

Promoting Tobacco Abstinence Among Older Adolescents in Dental Clinics

The health care setting, and most notably dental clinics, may hold promise in delivering effective tobacco intervention to adolescents. Adolescents between the ages of 14 and 17 were randomly assigned to brief advice from dental hygienists and dentists only or to brief advice plus a motivational interview and follow-up telephone contact from a study hygienist. Due to difficulties in identifying and recruiting subjects, study goals were expanded from cessation only to cessation and prevention. No differences in smoking prevalence were found between treatment conditions at either 3- or 12-month follow-up. Firm conclusions cannot be drawn about the effectiveness of treatment due both to problems in enrolling subjects and limited implementation of the motivational intervention.

Efficacy of a text messaging (SMS) based smoking cessation intervention for adolescents and young adults: study protocol of a cluster randomised controlled trial

Background

Particularly in groups of adolescents with lower educational level the smoking prevalence is still high and constitutes a serious public health problem. There is limited evidence of effective smoking cessation interventions in this group. Individualised text messaging (SMS) based interventions are promising to support smoking cessation and could be provided to adolescents irrespective of their motivation to quit. The aim of the current paper is to outline the study protocol of a trial testing the efficacy of an SMS based intervention for smoking cessation in apprentices.

Methods/Design

A two-arm cluster-randomised controlled trial will be conducted to test the efficacy of an SMS intervention for smoking cessation in adolescents and young adults compared to an assessment only control group. A total of 910 daily or occasional (≥ 4 cigarettes in the preceding month and ≥ 1 cigarette in the preceding week) smoking apprentices will be proactively recruited in vocational school classes and, using school class as a randomisation unit, randomly assigned to an intervention group (n = 455) receiving the SMS based intervention or an assessment only control group (n = 455). Individualised text messages taking into account demographic data and the individuals' smoking behaviours will be sent to the participants of the intervention group over a period of 3 months. Participants will receive two text messages promoting smoking cessation per week. Program participants who intend to quit smoking have the opportunity to use a more intensive SMS program to prepare for their quit day and to prevent a subsequent relapse. The primary outcome measure will be the proportion of participants with 7-day point prevalence smoking abstinence assessed at 6-months follow-up. The research assistants conducting the baseline and the follow-up assessments will be blinded regarding group assignment.

Discussion

It is expected that the program offers an effective and inexpensive way to promote smoking cessation among adolescents and young adults including those with lower educational level and independent of their motivation to quit.

Trial registration number

ISRCTN: ISRCTN19739792

Adolescent first lapse following smoking cessation: situation characteristics, precipitants and proximal influences

Despite increased attention to adolescent smoking cessation, little is known about adolescent relapse following a quit attempt. To address this issue, the present study was designed to provide initial information regarding the characteristics of adolescent lapses to smoking following abstinence. Included in the present study were 204 adolescent participants in four independent smoking cessation trials. For the full sample, participants averaged 15.99 (1.27) years of age; 56% were female and 78% were white. Lapse characteristics and precipitants were assessed using the Adolescent Smoking Relapse Review. Three domains of the lapse experience were assessed: lapse situation characteristics, precipitants of use in the situation, and proximal influences (i.e., potential precipitants occurring on the same day, prior to the lapse situation). Participant reports indicated that the modal lapse situation occurred in the evening while socializing with friends at home. Urges or cravings and social pressure were commonly endorsed as occurring in lapse situations. The most frequently reported proximal influence was desire for a cigarette, followed by abstinence-violation cognitions (okay to smoke occasionally, wanted to see what it would be like) and negative emotions. The findings indicate that a broad range of factors appear to influence adolescent smoking lapse and commend the value of incorporating content relevant to managing social and affective cues, strategies for inhibiting the prepotent response to ask for a cigarette, addressing cognitions regarding the difficulty of not smoking (i.e., cessation expectancies) and combating perceptions of the ability to smoke occasionally.

Wirksamkeit internetbasierter Programme zum Tabakrauchen

Zusammenfassung. Ziel dieser systematischen Literaturübersicht ist, die Wirksamkeit internetbasierter Programme zur Förderung des Rauchausstiegs, zur Verhinderung des Raucheinstiegs und zum Schutz vor Passivrauch anhand der vorliegenden empirischen Evidenz zu beurteilen. Die Literatursuche erfolgte im Juli 2010 und umfasste die Datenbanken PubMed, MEDLINE, Web of Science, PsycINFO sowie das Cochrane Register of Controlled Trials. Randomisiert-kontrollierte Studien, die Ergebnisse zur Wirksamkeit einer Intervention im Vergleich zu einer Kontrollgruppe oder einer Standardintervention berichten, wurden eingeschlossen. Von 359 Publikationen, die in den Literaturdatenbanken recherchiert wurden, konnten 17 in diese Übersicht eingeschlossen werden. Diese beschrieben 16 Studien: 14 Studien überprüften Programme zur Förderung des Rauchausstiegs, 2 Studien überprüften kombinierte Programme zur Förderung des Ausstiegs und zur Verhinderung des Einstiegs bei Jugendlichen. Von den 14 Rauchausstiegs-Interventionen erwiesen sich sechs als wirksam zur Erhöhung der Rate Rauchabstinenter gegenüber einer Kontrollgruppe. Aufgrund der Heterogenität der Studien v.a. hinsichtlich der verwendeten Kontrollgruppen wurden keine gepoolten Effektgrößen über alle Studien hinweg berechnet. Eine separate Berechnung von Effektgrößen für Studien mit ähnlichen Kontrollgruppen, ergab eine tendenziell, aber nicht signifikant höhere Rate Rauchabstinenter bei Internetinterventionen im Vergleich zu Kontrollgruppen ohne Intervention (Relatives Risiko (RR) 1.42; 95%-Konfidenzintervall (KI) 0.85–2.37). Ein Vergleich der Internetinterventionen mit Kontrollgruppen, die eine Minimalintervention erhielten, ergab einen signifikanten Interventionseffekt (RR 1.31; KI 1.09–1.57). Beim Vergleich der Internetinterventionen mit persönlichen Beratungsinterventionen ergab sich kein signifikanter Interventionseffekt (RR 0.86; KI 0.72–1.04); tendenziell waren die persönlichen Beratungsinterventionen überlegen. Im Vergleich zu einer Standardintervention allein, erwies sich eine Standardintervention mit zusätzlichem Internetprogramm nicht als wirksamer (RR 1.27; KI 0.70–2.31). Interventionen, die ausschließlich aufhörbereite Raucher adressierten, erwiesen sich eher als erfolgversprechend als Interventionen, welche sich an alle Raucher einer bestimmten Population richteten. Die beiden kombinierten Programme zur Förderung des Ausstiegs und zur Verhinderung des Einstiegs bei Jugendlichen waren auf einzelnen, aber nicht allen Zielkriterien wirksam. Zur Förderung des Rauchausstiegs bei aufhörbereiten Rauchern liegen international bereits wirksame Programme vor, allerdings wurde keines dieser Programme im deutschsprachigen Raum überprüft. Die empirische Evidenz zu Internetprogrammen zur Verhinderung des Raucheinstiegs ist bislang sehr gering; Wirksamkeitsstudien zu Internetprogrammen zum Schutz vor Passivrauch liegen bislang keine vor.

Participant- and study-related characteristics predicting treatment completion and study retention in an adolescent smoking cessation trial

PURPOSE

To determine which factors predict smoking cessation treatment completion and retention among adolescents.

METHODS

In a multisite, randomized, controlled trial, the efficacy of motivational interviewing was compared with structured brief advice for smoking cessation and reduction in adolescents (n = 355) aged 14-18 years (55% female, 45% black, 12% Hispanic). Treatment spanned 12 weeks, with follow-up assessments at 24 weeks. Treatment completion was defined as completion of all five counseling sessions. Study retention was defined as completing the 24-week assessment. Participant and study variables served as predictors of treatment completion and retention.

RESULTS

In all, 79% of participants completed all five counseling sessions and the same percent completed the 24-week assessment. Black race, precontemplation stage to cut back, and shorter length of time between the baseline assessment and the first counseling session were significantly associated with treatment completion. For every 7.5-day delay in starting treatment after the baseline visit, there was a 50% decrease in the odds of completing all five treatment sessions. Retention at 24 weeks was predicted by black race, younger age, greater maternal education, expectations of graduating college, and structured brief advice intervention.

CONCLUSIONS

High rates of treatment completion and study retention can be achieved in a multisession, behavioral intervention for adolescent smoking cessation. Findings suggest that treatment should begin soon after the intake session to maximize treatment completion. Enhanced efforts to retain older adolescents and youth with lower academic goals and lower family income will be important in future studies.

The Minnesota Adolescent Community Cohort Study: design and baseline results

The Minnesota Adolescent Community Cohort (MACC) Study is a population-based, longitudinal study that enrolled 3,636 youth from Minnesota and 605 youth from comparison states ages 12 to 16 years in 2000-2001. Participants have been surveyed by telephone semi-annually about their tobacco-related attitudes and behaviors. The goals of the study are to evaluate the effects of the Minnesota Youth Tobacco Prevention Initiative and its shutdown on youth smoking patterns, and to better define the patterns of development of tobacco use in adolescents. A multilevel sample was constructed representing individuals, local jurisdictions and the entire state, and data are collected to characterize each of these levels. This paper presents the details of the multilevel study design. We also provide baseline information about MACC participants including demographics and tobacco-related attitudes and behaviors. This paper describes variability in smoking prevalence and demographic characteristics for local units, and compares MACC participants to the state as a whole.

Physician communication regarding smoking and adolescent tobacco use

BACKGROUND

Physician advice increases quit rates 1% to 3% above unassisted quit rates among adults, an increase sufficient to be ranked as a high-priority, evidence-based preventive service. However, there is little research on the potential impact of physician advice on adolescent smoking.

OBJECTIVE

The purpose of this study was to examine the association between recalled physician communication and adolescents' attitudes toward smoking, knowledge about smoking, intentions to smoke, tobacco use, and quitting behaviors.

METHODS

This study was a retrospective observational study of 5154 students (82.9% black, 17.1% white) from an urban, mid-South school system. Outcome variables included adolescents' self-rated attitudes toward smoking, knowledge about smoking, intentions to smoke, tobacco use, and quitting behaviors.

RESULTS

Physician advice and the combination of screening and advice were associated with healthier attitudes about smoking. Physician screening and advice were also associated with a more accurate knowledge regarding tobacco-related damage. Among current smokers, recalled physician advice was also associated with reduced intentions to smoke in 5 years. Importantly, advised teens were more likely to plan to quit smoking in 6 months. Furthermore, teens who were screened by their physician reported significantly more quit attempts than those who were neither screened nor advised (P = .007).

CONCLUSIONS

Physician's tobacco-related interactions with adolescents seemed to positively impact their attitudes, knowledge, intentions to smoke, and quitting behaviors. Brief physician interventions have the potential to be a key intervention on a public health level through the prevention, cessation, and reduction of smoking and smoking-related disease.

Disseminating a smoking cessation intervention to childhood and young adult cancer survivors: baseline characteristics and study design of the partnership for health-2 study

BACKGROUND

Partnership for Health-2 (PFH-2) is a web-based version of Partnership for Health, an evidence-based smoking cessation intervention for childhood cancer survivors. This paper describes the PFH-2 intervention and baseline data collection.

METHODS

374 childhood and young adult cancer survivors were recruited from five cancer centers and participated in the baseline assessment. At baseline, participants completed measures of their smoking behavior, self-efficacy and stage of change for quitting smoking as well as psychological and environmental factors that could impact their smoking behavior.

RESULTS

At baseline, 93% of survivors smoked in the past seven days; however, 89% smoked a pack or less during this period. Forty-seven percent were nicotine dependent, and 55% had made at least one quit attempt in the previous year. Twenty-two percent of survivors were in contemplation for quitting smoking; of those 45% were somewhat or very confident that they could quit within six months. Sixty-three percent were in preparation for quitting smoking; however, they had relatively low levels of confidence that they could quit smoking in the next month. In multivariate analyses, stage of change, self-efficacy, social support for smoking cessation, smoking policy at work and home, fear of cancer recurrence, perceived vulnerability, depression, BMI, and contact with the healthcare system were associated with survivors' smoking behavior.

DISCUSSIONS/CONCLUSIONS

A large proportion of the sample was nicotine dependent, yet motivated to quit. Individual- interpersonal- and environmental-level factors were associated with survivors' smoking behavior. Smoking is particularly dangerous for childhood and young adult cancer survivors. This population may benefit from a smoking cessation intervention designed to build self-efficacy and address other known predictors of smoking behavior.

Smoking initiation is followed by the early acquisition of epigenetic change in cervical epithelium: a longitudinal study

BACKGROUND

To prove a causal link between an epigenetic change and an environmental or behavioural risk factor for a given disease, it is first necessary to show that the onset of exposure precedes the first detection of that epigenetic change in subjects who are still free of disease.

METHODS

Towards this end, a cohort of women aged 15-19 years, recruited soon after they first had sexual intercourse, were used to provide sequential observations on the relationship between cigarette smoking and the detection in cervical cytological samples of methylated forms of CDKN2A (p16) using nested methylation-specific polymerase chain reaction.

RESULTS

Among women who remained cytologically normal and who tested negative for human papillomavirus DNA in cervical smears during follow-up, those who first started to smoke during follow-up had an increased risk of acquiring CDKN2A methylation compared with never-smokers (odds ratio=3.67; 95% confidence interval 1.09-12.33; P=0.04).

CONCLUSION

Smoking initiation is associated with the appearance of methylated forms of CDKN2A.

Beyond reach and effectiveness: evaluating the not-on-tobacco (N-o-T) program in West Virginia from 2000 to 2005

Despite most teenage smokers wanting to quit, their likelihood of success resembles that of flipping a coin. Evidence-based cessation programs, like the American Lung Association's Not-On-Tobacco (N-O-T) program, are effective. Evaluation of program dissemination is critical. This study uses the RE-AIM framework to evaluate the N-O-T program in West Virginia from 2000 to 2005. RE-AIM components consisted of four measures. Regional dissemination was measured using comparative differences between Regional Educational Service Agency regions (RESAs). Significant associations were found between RESAs for numerous characteristics. Among the RE-AIM components, two measures of Implementation were significantly different between RESAs. Variability between RESAs provided valuable descriptive evidence of N-O-T program dissemination in West Virginia. Therefore, geographical tailoring grounded in community-based participatory research could increase the N-O-T program's overall dissemination.

Electronic cigarettes and thirdhand tobacco smoke: two emerging health care challenges for the primary care provider

PRIMARY CARE PROVIDERS SHOULD BE AWARE OF TWO NEW DEVELOPMENTS IN NICOTINE ADDICTION AND SMOKING CESSATION: 1) the emergence of a novel nicotine delivery system known as the electronic (e-) cigarette; and 2) new reports of residual environmental nicotine and other biopersistent toxicants found in cigarette smoke, recently described as "thirdhand smoke". The purpose of this article is to provide a clinician-friendly introduction to these two emerging issues so that clinicians are well prepared to counsel smokers about newly recognized health concerns relevant to tobacco use. E-cigarettes are battery powered devices that convert nicotine into a vapor that can be inhaled. The World Health Organization has termed these devices electronic nicotine delivery systems (ENDS). The vapors from ENDS are complex mixtures of chemicals, not pure nicotine. It is unknown whether inhalation of the complex mixture of chemicals found in ENDS vapors is safe. There is no evidence that e-cigarettes are effective treatment for nicotine addiction. ENDS are not approved as smoking cessation devices. Primary care givers should anticipate being questioned by patients about the advisability of using e-cigarettes as a smoking cessation device. The term thirdhand smoke first appeared in the medical literature in 2009 when investigators introduced the term to describe residual tobacco smoke contamination that remains after the cigarette is extinguished. Thirdhand smoke is a hazardous exposure resulting from cigarette smoke residue that accumulates in cars, homes, and other indoor spaces. Tobacco-derived toxicants can react to form potent cancer causing compounds. Exposure to thirdhand smoke can occur through the skin, by breathing, and by ingestion long after smoke has cleared from a room. Counseling patients about the hazards of thirdhand smoke may provide additional motivation to quit smoking.

A theory-based video messaging mobile phone intervention for smoking cessation: randomized controlled trial

Background

Advances in technology allowed the development of a novel smoking cessation program delivered by video messages sent to mobile phones. This social cognitive theory-based intervention (called “STUB IT”) used observational learning via short video diary messages from role models going through the quitting process to teach behavioral change techniques.

Objective

The objective of our study was to assess the effectiveness of a multimedia mobile phone intervention for smoking cessation.

Methods

A randomized controlled trial was conducted with 6-month follow-up. Participants had to be 16 years of age or over, be current daily smokers, be ready to quit, and have a video message-capable phone. Recruitment targeted younger adults predominantly through radio and online advertising. Registration and data collection were completed online, prompted by text messages. The intervention group received an automated package of video and text messages over 6 months that was tailored to self-selected quit date, role model, and timing of messages. Extra messages were available on demand to beat cravings and address lapses. The control group also set a quit date and received a general health video message sent to their phone every 2 weeks.

Results

The target sample size was not achieved due to difficulty recruiting young adult quitters. Of the 226 randomized participants, 47% (107/226) were female and 24% (54/226) were Maori (indigenous population of New Zealand). Their mean age was 27 years (SD 8.7), and there was a high level of nicotine addiction. Continuous abstinence at 6 months was 26.4% (29/110) in the intervention group and 27.6% (32/116) in the control group (P = .8). Feedback from participants indicated that the support provided by the video role models was important and appreciated.

Conclusions

This study was not able to demonstrate a statistically significant effect of the complex video messaging mobile phone intervention compared with simple general health video messages via mobile phone. However, there was sufficient positive feedback about the ease of use of this novel intervention, and the support obtained by observing the role model video messages, to warrant further investigation.

Trial registration

Australian New Zealand Clinical Trials Registry Number: ACTRN12606000476538; http://www.anzctr.org.au/trial_view.aspx?ID=81688 (Archived by WebCite at http://www.webcitation.org/5umMU4sZi)

Trial protocol and preliminary results for a cluster randomised trial of behavioural support versus brief advice for smoking cessation in adolescents

Background

Many young people report they want to stop smoking and have tried to do so, but most of their quit attempts fail. For adult smokers, there is strong evidence that group behavioural support enhances quit rates. However, it is uncertain whether group behavioural support enhances abstinence in young smokers trying to quit.

Findings

A cluster randomised trial for young people trying to stop smoking to compare the efficacy of a school-based 9 week intensive group behavioural support course versus a school-based 7 week brief advice only course. Participants were assessed for evidence of tobacco addiction and nicotine replacement therapy (NRT) was used if it was deemed appropriate by the therapist. Both types of course aimed to recruit approximately one hundred participants from approximately ten schools.

The primary outcome was successful quitting at 4 weeks after quit day judged according to the Russell standard. Had the trial been completed, abstinence at 6 months after quit day and the relationships between successful quit attempts and 1) psychological assessments of dependence prior to quitting 2) salivary cotinine concentration prior to quitting and 3) sociodemographic characteristics would also have been assessed. The proportion of participants who stopped smoking in each arm of the trial were compared using Chi square tests.

The trial was stopped shortly after it had started because funding to support the therapists running the stop smoking group behavioural support programme was withdrawn. Only three stop smoking courses were completed (two group support courses and one brief advice pharmacotherapy course). Seventeen participants in total entered the trial. At the end of the courses, one participant (10%) attending the group support programme had stopped smoking and no participant attending the brief advice programme had stopped smoking.

Discussion

The trial was stopped so we were unable to determine whether group support helped more young people to stop smoking than brief advice. Engagement and recruitment of participants proved much more difficult than had been anticipated. Fifteen of the seventeen participants reported that quitting smoking was either pretty important or very important to them. Thus, the stop smoking success rate could, nevertheless, be considered disappointing.

Trial registration

Current Controlled Trials ISRCTN25181936

Smoking-cessation interventions for U.S. young adults: a systematic review

CONTEXT

Studies have demonstrated the importance of quitting smoking before age 30 years to avoid tobacco-related mortality but little attention has been paid to developing evidence-based smoking-cessation interventions for young adults, as distinct from adolescents and older-aged adults. The objective of this study was to conduct a systematic review of smoking-cessation interventions for U.S. young adults (aged 18-24 years).

EVIDENCE ACQUISITION

Electronic searches were conducted in CINAHL, the Cochrane Library, EMBASE, PsycINFO, PubMed, Scopus, and Sociological Abstracts to identify eligible interventions through August 31, 2009. Two independent coders critically evaluated the methodology and findings of all retrieved articles. Data analysis was conducted in 2010.

EVIDENCE SYNTHESIS

Twelve RCTs and two nonrandomized studies met the inclusion criteria; these studies varied with respect to sample size, intervention, outcomes assessed, and smoking measures. Pooled results for two studies based on social cognitive theory indicated that they were effective in promoting short-term abstinence at 1-3-month follow-up and 4-6-month follow-up. Four studies had a significant positive impact on smoking cessation: two in the short term and two at 6 months or more.

CONCLUSIONS

There is limited evidence demonstrating efficacy of smoking-cessation interventions for U.S. young adults. There were no pharmacologic interventions included in this review. Promising interventions were brief, with extended support via telephone and electronic media. Further high-quality studies using standardized smoking measures and additional studies outside the college setting are needed to identify and tailor effective smoking-cessation interventions for at-risk young adults in the U.S.

Stage-based interventions for smoking cessation

BACKGROUND

The transtheoretical model is the most widely known of several stage-based theories of behaviour. It proposes that smokers move through a discrete series of motivational stages before they quit successfully. These are precontemplation (no thoughts of quitting), contemplation (thinking about quitting), preparation (planning to quit in the next 30 days), action (quitting successfully for up to six months), and maintenance (no smoking for more than six months). According to this influential model, interventions which help people to stop smoking should be tailored to their stage of readiness to quit, and are designed to move them forward through subsequent stages to eventual success. People in the preparation and action stages of quitting would require different types of support from those in precontemplation or contemplation.

OBJECTIVES

Our primary objective was to test the effectiveness of stage-based interventions in helping smokers to quit.

SEARCH STRATEGY

We searched the Cochrane Tobacco Addiction Group's specialised register for trials, using the terms ('stage* of change', 'transtheoretical model*', 'trans-theoretical model*, 'precaution adoption model*', 'health action model', 'processes of change questionnaire*', 'readiness to change', 'tailor*') and 'smoking' in the title or abstract, or as keywords. The latest search was in August 2010.

SELECTION CRITERIA

We included randomized controlled trials, which compared stage-based interventions with non-stage-based controls, with 'usual care' or with assessment only. We excluded trials which did not report a minimum follow-up period of six months from start of treatment, and those which measured stage of change but did not modify their intervention in the light of it.

DATA COLLECTION AND ANALYSIS

We extracted data in duplicate on the participants, the dose and duration of intervention, the outcome measures, the randomization procedure, concealment of allocation, and completeness of follow up.The main outcome was abstinence from smoking for at least six months. We used the most rigorous definition of abstinence, and preferred biochemically validated rates where reported. Where appropriate we performed meta-analysis to estimate a pooled risk ratio, using the Mantel-Haenszel fixed-effect model.

MAIN RESULTS

We found 41 trials (>33,000 participants) which met our inclusion criteria. Four trials, which directly compared the same intervention in stage-based and standard versions, found no clear advantage for the staging component. Stage-based versus standard self-help materials (two trials) gave a relative risk (RR) of 0.93 (95% CI 0.62 to 1.39). Stage-based versus standard counselling (two trials) gave a relative risk of 1.00 (95% CI 0.82 to 1.22). Six trials of stage-based self-help systems versus any standard self-help support demonstrated a benefit for the staged groups, with an RR of 1.27 (95% CI 1.01 to 1.59). Twelve trials comparing stage-based self help with 'usual care' or assessment-only gave an RR of 1.32 (95% CI 1.17 to 1.48). Thirteen trials of stage-based individual counselling versus any control condition gave an RR of 1.24 (95% CI 1.08 to 1.42). These findings are consistent with the proven effectiveness of these interventions in their non-stage-based versions. The evidence was unclear for telephone counselling, interactive computer programmes or training of doctors or lay supporters. This uncertainty may be due in part to smaller numbers of trials.

AUTHORS' CONCLUSIONS

Based on four trials using direct comparisons, stage-based self-help interventions (expert systems and/or tailored materials) and individual counselling were neither more nor less effective than their non-stage-based equivalents. Thirty-one trials of stage-based self help or counselling interventions versus any control condition demonstrated levels of effectiveness which were comparable with their non-stage-based counterparts. Providing these forms of practical support to those trying to quit appears to be more productive than not intervening. However, the additional value of adapting the intervention to the smoker's stage of change is uncertain. The evidence is not clear for other types of staged intervention, including telephone counselling, interactive computer programmes and training of physicians or lay supporters. The evidence does not support the restriction of quitting advice and encouragement only to those smokers perceived to be in the preparation and action stages.

Physician diagnosis of overweight status predicts attempted and successful weight loss in patients with cardiovascular disease and central obesity

INTRODUCTION

Despite the association of central obesity with adverse outcomes, most patients with cardiovascular disease (CVD) are unable to successfully lose weight. We undertook this analysis to evaluate the effect of motivational factors, and clinical factors, including physician diagnosis of overweight, on weight loss in patients with CVD and central obesity in the United States.

METHODS AND RESULTS

We used data from the National Health and Nutrition Examination Survey 1999 to 2004. Waist circumference ≥ 102 cm in men and ≥ 88 cm in women were used to classify central obesity. We examined demographic, motivational and clinical determinants of attempted and successful weight loss using multivariable logistic regression. Successful weight loss was defined as ≥ 5% weight loss in the preceding year. There were 907 respondents with CVD and central obesity of which 78% were aware of their overweight status and 80% were desirous to weigh less. Despite this awareness and desire, only 49% of centrally obese adults had attempted weight loss in the last year. Only 62% (n = 584) reported that they had been informed that they were overweight by a physician. On multivariable analysis, physician diagnosis of overweight was a significant predictor of weight loss attempts (OR 2.42, 95% CI 1.44-4.09, P = .006) and successful weight loss (OR 2.70, 95% CI 1.40-5.19, P = .001).

CONCLUSION

In a nationally representative sample of adults with CVD and central obesity, physician diagnosis of overweight status emerged as a significant predictor of attempted and successful weight loss.

Aging images as a motivational trigger for smoking cessation in young women

Recruiting adolescents into smoking cessation programs has been challenging, and there is a lack of effective smoking cessation interventions for this age group. We aimed to assess whether the approach of using aging images can be used to recruit young, female smokers for a smoking cessation course. In this study, 853 14- to 18-year-old subjects were photographed (2006–2007). After software-aided aging, the images evoked strong emotions, especially in subjects with an advanced motivational stage to quit. Twenty-four percent of current smokers reported that the aging images increased their motivation to quit smoking (pre-contemplation: 8%; contemplation: 32%; and preparation: 71%). In multivariate analyses, the aged images had a high motivational impact to quit smoking that was associated with an increased readiness to stop smoking and the individual’s assessment of the aging images as shocking, but not with the number of previous attempts to quit and the assessment of the pictures as realistic. However, it was not possible to recruit the study population for a smoking cessation course. We concluded that aging images are a promising intervention for reaching young women and increasing their motivation to stop smoking. However, smoking cessation courses may not be appropriate for this age group: none of the recruits agreed to take a cessation course.

The effectiveness of interventions to change six health behaviours: a review of reviews

BACKGROUND

Several World Health Organisation reports over recent years have highlighted the high incidence of chronic diseases such as diabetes, coronary heart disease and cancer. Contributory factors include unhealthy diets, alcohol and tobacco use and sedentary lifestyles. This paper reports the findings of a review of reviews of behavioural change interventions to reduce unhealthy behaviours or promote healthy behaviours. We included six different health-related behaviours in the review: healthy eating, physical exercise, smoking, alcohol misuse, sexual risk taking (in young people) and illicit drug use. We excluded reviews which focussed on pharmacological treatments or those which required intensive treatments (e.g. for drug or alcohol dependency).

METHODS

The Cochrane Library, Database of Abstracts of Reviews of Effectiveness (DARE) and several Ovid databases were searched for systematic reviews of interventions for the six behaviours (updated search 2008). Two reviewers applied the inclusion criteria, extracted data and assessed the quality of the reviews. The results were discussed in a narrative synthesis.

RESULTS

We included 103 reviews published between 1995 and 2008. The focus of interventions varied, but those targeting specific individuals were generally designed to change an existing behaviour (e.g. cigarette smoking, alcohol misuse), whilst those aimed at the general population or groups such as school children were designed to promote positive behaviours (e.g. healthy eating). Almost 50% (n = 48) of the reviews focussed on smoking (either prevention or cessation). Interventions that were most effective across a range of health behaviours included physician advice or individual counselling, and workplace- and school-based activities. Mass media campaigns and legislative interventions also showed small to moderate effects in changing health behaviours.Generally, the evidence related to short-term effects rather than sustained/longer-term impact and there was a relative lack of evidence on how best to address inequalities.

CONCLUSIONS

Despite limitations of the review of reviews approach, it is encouraging that there are interventions that are effective in achieving behavioural change. Further emphasis in both primary studies and secondary analysis (e.g. systematic reviews) should be placed on assessing the differential effectiveness of interventions across different population subgroups to ensure that health inequalities are addressed.

Efficacy of motivational interviewing for smoking cessation: a systematic review and meta-analysis

OBJECTIVE

A systematic review and meta-analysis to investigate the efficacy of interventions incorporating motivational interviewing for smoking cessation and identify correlates of treatment effects.

DATA SOURCES

Medline/PubMed, PsycInfo and other sources including grey literature.

STUDY SELECTION

Title/abstract search terms were motivational interview* OR motivational enhancement AND smok*, cigarette*, tobacco, OR nicotine. Randomised trials reporting number of smokers abstinent at follow up were eligible.

DATA EXTRACTION

Data were independently coded by the first and third authors. We coded for a variety of study, participant, and intervention related variables.

DATA SYNTHESIS

A random effects logistic regression with both a random intercept and a random slope for the treatment effect.

RESULTS

31 smoking cessation research trials were selected for the study: eight comprised adolescent samples, eight comprised adults with chronic physical or mental illness, five comprised pregnant/postpartum women and 10 comprised other adult samples. Analysis of the trials (9485 individual participants) showed an overall OR comparing likelihood of abstinence in the motivational interviewing (MI) versus control condition of OR 1.45 (95% CI 1.14 to 1.83). Additional potential correlates of treatment effects such as study, sample, and intervention characteristics were examined.

CONCLUSIONS

This is the most comprehensive review of MI for smoking cessation conducted to date. These findings suggest that current MI smoking cessation approaches can be effective for adolescents and adults. However, comparative efficacy trials could be useful.

Pharmacotherapies for adolescent substance use disorders

There is a paucity of research on pharmacotherapies in adolescents with substance use disorders. This paucity is partly because of the fact that most people with substance dependence do not get diagnosed until early adulthood, that is, after 18 years of age. This article reviews pharmacotherapies used for aversion, substitution, anti-craving, and detoxification of alcohol, nicotine, cocaine, and opioids dependence. Adult research is referenced when applicable and generalized to adolescents with caution. Continued evaluation and development of pharmacotherapy for youth in controlled studies are needed to examine medication effectiveness, safety, potential for abuse, compliance, and potential interactions with other medications or substances of abuse.

Gender, smoking status, and risk behavior attitudes explain adolescents' patterns of nicotine replacement therapy use

Treatment studies provide minimal support for nicotine replacement therapy (NRT) with youth; however, survey studies suggest that adolescents use NRT, and may engage in inappropriate use. The current study sought to examine patterns of NRT use and risk factors for use to further aid smoking cessation efforts including prevention of potential misuse. In-school surveys assessing socio-demographic and behavioral factors associated with NRT use, gum or patch, were completed by 4078, predominantly African American, high school students. Approximately 5% of students reported former or current use of NRT products: 42% gum, 29% patch, and 29% both gum and patch. Among smokers, 5.4% reported use of both NRT gum and patch, with exclusive use of gum twice as likely as exclusive use of the patch. Those with high-risk-taking attitudes were more likely than low-risk takers (3% vs. 1%) to report use of both products, with exclusive gum use more prevalent than patch use. A cumulative logit model revealed males, risk takers, and/or smokers were at greatest odds for NRT use. Among this adolescent sample, NRT gum was used more often than the patch. Adolescent males, risk takers, and/or smokers appear more likely to use NRT (gum and/or patch) compared to their counterparts, despite limited empirical support for effective use of these products as cessation aids among adolescents. Smoking cessation and prevention programs may emphasize appropriate NRT use, specifically within these populations.

Motivational interviewing for smoking cessation

BACKGROUND

Motivational Interviewing (MI) is a directive patient-centred style of counselling, designed to help people to explore and resolve ambivalence about behaviour change. It was developed as a treatment for alcohol abuse, but may help smokers to a make a successful attempt to quit.

OBJECTIVES

To determine the effects of motivational interviewing in promoting smoking cessation.

SEARCH STRATEGY

We searched the Cochrane Tobacco Addiction Group Specialized Register for studies with terms (motivational OR motivation OR motivating OR motivate OR behavi* OR motivat*) and (interview* OR session* OR counsel* OR practi*) in the title or abstract, or as keywords. Date of the most recent search: April 2009.

SELECTION CRITERIA

Randomized controlled trials in which motivational interviewing or its variants were offered to smokers to assist smoking cessation.

DATA COLLECTION AND ANALYSIS

We extracted data in duplicate. The main outcome measure was abstinence from smoking after at least six months follow up. We used the most rigorous definition of abstinence in each trial, and biochemically validated rates where available. Subjects lost to follow up were treated as continuing smokers. We performed meta-analysis using a fixed-effect Mantel-Haenszel model.

MAIN RESULTS

We identified 14 studies published between 1997 and 2008, involving over 10,000 smokers. Trials were conducted in one to four sessions, with the duration of each session ranging from 15 to 45 minutes. All but two of the trials used supportive telephone contacts, and supplemented the counselling with self-help materials. MI was generally compared with brief advice or usual care in the trials. Interventions were delivered by primary care physicians, hospital clinicians, nurses or counsellors. Our meta-analysis of MI versus brief advice or usual care yielded a modest but significant increase in quitting (RR 1.27; 95% CI 1.14 to 1.42). Subgroup analyses suggested that MI was effective when delivered by primary care physicians (RR 3.49; 95% CI 1.53 to 7.94) and by counsellors (RR 1.27; 95% CI 1.12 to 1.43), and when it was conducted in longer sessions (more than 20 minutes per session) (RR 1.31; 95% CI 1.16 to 1.49). Multiple session treatments may be slightly more effective than single sessions, but both regimens produced positive outcomes. Evidence is unclear at present on the optimal number of follow-up calls.There was variation across the trials in treatment fidelity. All trials used some variant of motivational interviewing.Critical details in how it was modified for the particular study population, the training of therapists and the content of the counselling were sometimes lacking from trial reports.

AUTHORS' CONCLUSIONS

Motivational interviewing may assist smokers to quit. However, the results should be interpreted with caution due to variations in study quality, treatment fidelity and the possibility of publication or selective reporting bias.

Systematic reviews on tobacco control from Cochrane and the Community Guide: different methods, similar findings

OBJECTIVES

To compare the methods and findings of systematic reviews (SRs) on common tobacco control interventions from two organizations: the Cochrane Collaboration ("Cochrane") and the US Task Force for Community Preventive Services ("the Guide").

STUDY DESIGN AND SETTING

Literature review. We retrieved all reviews pertaining to tobacco control produced by the Cochrane and the Guide. We identified seven common topics and compared methods and findings of the retrieved reviews.

RESULTS

There was considerable variability in the designs of included studies and methods of data synthesis. On average, Cochrane identified more studies than did the Guide (Mean 43.7 vs. 19.0), with only limited overlap between sets of included studies. Most Cochrane reviews (71.4%) were synthesized narratively, whereas most Guide reviews (85.7%) were synthesized using a median of effect size. Despite these differences, findings of the reviews yielded substantial agreement.

CONCLUSION

Cochrane and the Guide conduct SRs on similar tobacco control-related topics differently. The SRs of the two organizations include overlapping, but nonidentical sets, of studies. Still, they usually reach similar conclusions. Identification of all pertinent original studies seems to be a weak point in the SR process. Policy makers should use reviews from both organizations in formulating tobacco control policy.

Intervention effects on tobacco use in Arab and non-Arab American adolescents

A quasi-experimental design was used to test a modified Project Towards No Tobacco (TNT) use program on cigarette smoking in 380 Arab American and 236 non-Arab American 9th graders in the Midwest. Tenth grade Non-Arab American students given the intervention as 9th graders were 23% less likely to experiment (Odds Ratio=1.31, 95% CI: 1.05, 1.64) or to have smoked cigarettes in the past 30 days (Odd Ratio=1.43 times, 95% CI: 1.03, 2.01) compared to Arab American youth. Arab American students reported greater experimentation with water pipe smoking than cigarettes (38% vs. 22%), and more current (16% vs. 6%) and regular (7% vs. 3%) use of water pipes than cigarettes, respectively. The intervention designed to focus on cigarette smoking had non-significant effects on water pipe smoking. These findings provide support for a school-based intervention revised to focus on prevention as well as cessation and to be culturally consistent. They also call for further research and intervention tailoring to address the problem of water pipe smoking in a growing Arab American adolescent population.

TABADO: "evaluation of a smoking cessation program among adolescents in vocational training centers": study protocol

BACKGROUND

Most of the efforts to reduce teenagers' tobacco addiction have focused on smoking prevention and little on smoking cessation. A smoking cessation program (TABADO study), associating pharmacologic and cognitive-behavioural strategy, on a particularly vulnerable population (vocational trainees), was developed. This study aims to evaluate the efficacy of the program which was offered to all smokers in a population aged 15 to 20 years in Vocational Training Centers (VTC). This paper presents the TABADO study protocol.

METHODS

The study is quasi-experimental, prospective, evaluative and comparative and takes place during the 2 years of vocational training. The final population will be composed of 2000 trainees entering a VTC in Lorraine, France, during the 2008-2009 period. The intervention group (1000 trainees) benefited from the TABADO program while no specific intervention took place in the "control" group (1000 trainees) other than the treatment and education services usually available. Our primary outcome will be the tobacco abstinence rate at 12 months.

DISCUSSION

If the program proves effective, it will be a new tool in the action against smoking in populations that have been seldom targeted until now. In addition, the approach could be expanded to other young subjects from socially disadvantaged backgrounds in the context of a public health policy against smoking among adolescents.

TRIAL REGISTRATION

Clinical trial identification number is NTC00973570.

From the American Academy of Pediatrics: Technical report--Secondhand and prenatal tobacco smoke exposure

Secondhand tobacco smoke (SHS) exposure of children and their families causes significant morbidity and mortality. In their personal and professional roles, pediatricians have many opportunities to advocate for elimination of SHS exposure of children, to counsel tobacco users to quit, and to counsel children never to start. This report discusses the harms of tobacco use and SHS exposure, the extent and costs of tobacco use and SHS exposure, and the evidence that supports counseling and other clinical interventions in the cycle of tobacco use. Recommendations for future research, policy, and clinical practice change are discussed. To improve understanding and provide support for these activities, the harms of SHS exposure are discussed, effective ways to eliminate or reduce SHS exposure are presented, and policies that support a smoke-free environment are outlined.

Group-randomized trial of a proactive, personalized telephone counseling intervention for adolescent smoking cessation

BACKGROUND

The Hutchinson Study of High School Smoking randomized trial was designed to rigorously evaluate a proactive, personalized telephone counseling intervention for adolescent smoking cessation.

METHODS

Fifty randomly selected Washington State high schools were randomized to the experimental or control condition. High school junior smokers were proactively identified (N = 2151). Trained counselors delivered the motivational interviewing plus cognitive behavioral skills training telephone intervention to smokers in experimental schools during their senior year of high school. Participants were followed up, with 88.8% participation, to outcome ascertainment more than 1 year after random assignment. The main outcome was 6-months prolonged abstinence from smoking. All statistical tests were two-sided.

RESULTS

The intervention increased the percentage who achieved 6-month prolonged smoking abstinence among all smokers (21.8% in the experimental condition vs 17.7% in the control condition, difference = 4.0%, 95% confidence interval [CI] = -0.2 to 8.1, P = .06) and in particular among daily smokers (10.1% vs 5.9%, difference = 4.1%, 95% CI = 0.8 to 7.1, P = .02). There was also generally strong evidence of intervention impact for 3-month, 1-month, and 7-day abstinence and duration since last cigarette (P = .09, .015, .01, and .03, respectively). The intervention effect was strongest among male daily smokers and among female less-than-daily smokers.

CONCLUSIONS

Proactive identification and recruitment of adolescents via public high schools can produce a high level of intervention reach; a personalized motivational interviewing plus cognitive behavioral skills training counseling intervention delivered by counselor-initiated telephone calls is effective in increasing teen smoking cessation; and both daily and less-than-daily teen smokers participate in and benefit from telephone-based smoking cessation intervention.

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.

Evaluation of school-based smoking-cessation interventions for self-described adolescent smokers

OBJECTIVE

The goal was to compare the efficacy of school-based, multisession, group smoking-cessation interventions versus a single group session in increasing quit rates among adolescent smokers.

METHODS

Eight schools were assigned randomly to use 1 of 2 group smoking-cessation programs previously shown to increase quit rates among adolescents (Not on Tobacco [NOT] or Kickin' Butts). We reformatted the programs to twice-weekly 25- to 30-minute sessions delivered during lunch periods. Smoking status was assessed at end of program (EOP) and 1, 3, 6, and 12 months later. Self-reported quit status was confirmed with salivary cotinine levels.

RESULTS

A total of 407 students (56% black and 52% female; mean age: 16 years) participated. Kickin' Butts participants were no more likely to quit than control subjects. In the conservative analysis (students with missing follow-up data classified as smokers), NOT participants were 1.92 times (95% confidence interval [CI]: 1.09-3.40 times) more likely to self-report quitting at 1 month. In the Bayesian analysis (missing follow-up data imputed by using all available data), NOT participants were significantly more likely than control subjects to self-report quitting at EOP (relative risk [RR]: 1.26 [95% CI: 1.10-1.43]), 1 month (RR: 2.07 [95% CI: 1.68-2.56]), and 12 months (RR: 1.58 [95% CI: 1.22-2.04]). Cotinine-confirmed quit rates were significantly greater among NOT participants, compared with control subjects, at EOP and 1 month.

CONCLUSIONS

The reformatted NOT program had a modest effect on adolescents interested in quitting. Kickin' Butts, as reformatted for this project, did not have any effect on quit rates.

Tobacco smoking in individuals with attention-deficit hyperactivity disorder: epidemiology and pharmacological approaches to cessation

The co-occurrence of attention-deficit hyperactivity disorder (ADHD) and nicotine dependence is common. Individuals with ADHD are more likely to initiate smoking and become dependent on nicotine than their non-ADHD counterparts, and recent evidence suggests that they may have more difficulty quitting smoking. Little is known about how to best approach treating these co-morbidities to optimize clinical outcome. Clinicians treating individuals with either ADHD or nicotine dependence should be aware of their common co-occurrence and the need to address both in treatment. This review of ADHD and nicotine dependence provides an overview of relevant epidemiology, bidirectional interactions and implications for pharmacological and adjunctive psychosocial treatment. Incorporating the current evidence base and their clinical experience, the authors propose a stepwise approach to treating patients with co-morbid ADHD and nicotine dependence. Given the potential for ADHD symptoms to interfere with smoking cessation success, the first priority is to stabilize ADHD. The first-line pharmacological approach should be a long-acting psychostimulant. Upon ADHD stabilization, motivational techniques should be used to encourage readiness for a smoking cessation attempt. In the context of behavioural cessation interventions sensitive to the patient's needs and developmental stage, pharmacological intervention targeting smoking cessation may be initiated. The authors recommend varenicline as a first-line agent, given its superior effect size among available medication treatments. Symptoms of ADHD, as well as nicotine withdrawal and craving symptoms, should be monitored closely during the cessation attempt, and adjustments to therapy should be considered if warranted. The authors conclude that, while current treatments may potentially be effective for co-morbid ADHD and nicotine dependence, further research is needed to parse the complex associations between these disorders and prospectively study combined treatments.

Can we systematically review studies that evaluate complex interventions?

BACKGROUND TO THE DEBATE

The UK Medical Research Council defines complex interventions as those comprising "a number of separate elements which seem essential to the proper functioning of the interventions although the 'active ingredient' of the intervention that is effective is difficult to specify." A typical example is specialist care on a stroke unit, which involves a wide range of health professionals delivering a variety of treatments. Michelle Campbell and colleagues have argued that there are "specific difficulties in defining, developing, documenting, and reproducing complex interventions that are subject to more variation than a drug". These difficulties are one of the reasons why it is challenging for researchers to systematically review complex interventions and synthesize data from separate studies. This PLoS Medicine Debate considers the challenges facing systematic reviewers and suggests several ways of addressing them.

Interventions for promoting smoking cessation during pregnancy

BACKGROUND

Tobacco smoking in pregnancy remains one of the few preventable factors associated with complications in pregnancy, low birthweight, preterm birth and has serious long-term health implications for women and babies. Smoking in pregnancy is decreasing in high-income countries and increasing in low- to middle-income countries and is strongly associated with poverty, low educational attainment, poor social support and psychological illness.

OBJECTIVES

To assess the effects of smoking cessation interventions during pregnancy on smoking behaviour and perinatal health outcomes.

SEARCH STRATEGY

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (June 2008), the Cochrane Tobacco Addiction Group's Trials Register (June 2008), EMBASE, PsycLIT, and CINAHL (all from January 2003 to June 2008). We contacted trial authors to locate additional unpublished data.

SELECTION CRITERIA

Randomised controlled trials where smoking cessation during pregnancy was a primary aim of the intervention.

DATA COLLECTION AND ANALYSIS

Trials were identified and data extracted by one person and checked by a second. Subgroup analysis was conducted to assess the effect of risk of trial bias, intensity of the intervention and main intervention strategy used.

MAIN RESULTS

Seventy-two trials are included. Fifty-six randomised controlled trials (over 20,000 pregnant women) and nine cluster-randomised trials (over 5000 pregnant women) provided data on smoking cessation outcomes.There was a significant reduction in smoking in late pregnancy following interventions (risk ratio (RR) 0.94, 95% confidence interval (CI) 0.93 to 0.96), an absolute difference of six in 100 women who stopped smoking during pregnancy. However, there is significant heterogeneity in the combined data (I(2) > 60%). In the trials with the lowest risk of bias, the interventions had less effect (RR 0.97, 95% CI 0.94 to 0.99), and lower heterogeneity (I(2) = 36%). Eight trials of smoking relapse prevention (over 1000 women) showed no statistically significant reduction in relapse.Smoking cessation interventions reduced low birthweight (RR 0.83, 95% CI 0.73 to 0.95) and preterm birth (RR 0.86, 95% CI 0.74 to 0.98), and there was a 53.91g (95% CI 10.44 g to 95.38 g) increase in mean birthweight. There were no statistically significant differences in neonatal intensive care unit admissions, very low birthweight, stillbirths, perinatal or neonatal mortality but these analyses had very limited power.

AUTHORS' CONCLUSIONS

Smoking cessation interventions in pregnancy reduce the proportion of women who continue to smoke in late pregnancy, and reduce low birthweight and preterm birth. Smoking cessation interventions in pregnancy need to be implemented in all maternity care settings. Given the difficulty many pregnant women addicted to tobacco have quitting during pregnancy, population-based measures to reduce smoking and social inequalities should be supported.

Who wants to quit? Characteristics of American Indian youth who seek smoking cessation intervention

No group is more at-risk for tobacco-related health disparities than are American Indian youth. Little is known about their readiness to quit smoking and the extent to which cessation programs may require cultural tailoring related to recruitment, implementation, or content. This study identifies unique characteristics of American Indian teen smokers who enrolled in a school-based smoking cessation program, Not On Tobacco (called N-O-T). Using data from N-O-T intervention trials conducted in North Carolina between 2001 and 2004, the present study (a) describes the characteristics of American Indian participants (n = 91); (b) determines if basic demographics and smoking history affect intervention readiness; and (c) compares findings with non-Native participants (n = 138) enrolled in N-O-T within the same state. Upon enrollment, 80% of the sample reported that they planned to quit smoking in the next 1-6 months. We found significant differences between American Indian and non-Native youth on smoking history, with non-Natives smoking with greater intensity and frequency. Contrary to previous reports, American Indian youth in this study smoked with less intensity and were more ready to quit smoking than non-Native youth. Results reveal previously unreported characteristics of American Indian teen smokers. Study findings may advance the development of effective marketing, recruitment, and programming among American Indian teen smokers into cessation programs, particularly N-O-T, which is the only teen smoking cessation program which includes an adaptation specifically for American Indians.

Contingency management and motivational enhancement: a randomized clinical trial for college student smokers

INTRODUCTION

The efficacy of contingency-management (CM) and motivational enhancement therapy (MET) for college student smoking cessation was examined.

METHODS

Nontreatment-seeking daily smokers (N = 110) were randomly assigned to 3 weeks of CM versus noncontingent reinforcement (NR) and to three individual sessions of MET versus a relaxation control in a 2 x 2 experimental design. Expired carbon monoxide (CO) samples were collected twice daily for 3 weeks. Participants earned 5 US dollars for providing each sample; additionally, those randomized to CM earned escalating monetary rewards based on CO reductions (Week 1) and smoking abstinence (Weeks 2-3).

RESULTS

Compared with NR, CM resulted in significantly lower CO levels and greater total and consecutive abstinence during the intervention. Those in the CM and MET groups reported greater interest in quitting smoking posttreatment, but rates of confirmed abstinence at follow-up were very low (4% at 6-month follow-up) and did not differ by group.

DISCUSSION

Findings support the short-term efficacy of CM for reducing smoking among college students. Future research should explore enhancements to CM in this population, including a longer intervention period and the recruitment of smokers who are motivated to quit.

Stage of adoption of the human papillomavirus vaccine among college women

BACKGROUND

Certain types of human papillomavirus (HPV) can cause cervical and other cancers. A vaccine that protects against HPV types responsible for 70% of cervical cancers is available to females ages 9-26.

OBJECTIVE

To examine correlates of stage of vaccine adoption among women ages 18-22.

METHODS

In 2007, female students (n=4774) at a New England University in the U.S. were invited to complete an on-line survey that assessed knowledge of HPV, perceived susceptibility, severity, vaccine benefits/barriers, social and subjective norms, and stage of vaccine adoption

RESULTS

1897 women (40%) responded; complete data were available for 1401. About half (53%) were planning to be vaccinated, 12% had received the vaccine, 15% were undecided, and 7% had decided against vaccination. HPV knowledge was low (mean 58%). In multivariate analyses, social norms was the strongest correlate of stage; each standard deviation increase in social norms score was associated with more than four times the odds of intending to be vaccinated within the next 30 days, compared with those who had decided against vaccination (OR=4.15; 95% CI 2.17-6.36).

CONCLUSIONS

Acceptance of the vaccine was high, although misconceptions about viral transmission, availability of treatment, and the role of Pap tests were common. Perceived norms were strongly associated with intentions. Interventions on college campuses should stress vaccination as a normative behavior, provide information about viral transmission, and stress the role of continued Pap screening.

Youth tobacco use cessation: 2008 update

In this paper, an empirical review of 64 teen tobacco use cessation studies is provided. Examined include program contents, delivery modalities, number of contacts, and expected quit rates. In addition, means of recruitment and retention of smokers in programming are discussed. Also, promising contemporary methods of teen smoking cessation are examined, including use of pharmacologic adjuncts, electronic technology, and cigarette price increases (and no smoking policy). Conclusions are made regarding implications for developing and implementing teen tobacco use cessation programs.

Smoking cessation readiness: are your patients ready to quit?

PURPOSE

To explore the assessment of patient readiness to receive smoking cessation interventions using the transtheoretical model (TTM) and the five stages of change; and to give the primary care provider an evidence-based toolkit to assist in evaluating for readiness and supporting the smoking cessation process.

DATA SOURCES

Evidence-based literature, theoretical framework, and peer-reviewed articles.

CONCLUSIONS

Utilizing the TTM along with proper training and education of the provider and patient increases the probability that smoking cessation will occur. Combinations of pharmaceutical and nonpharmaceutical interventions are the most effective in smoking cessation.

IMPLICATIONS FOR PRACTICE

Providers can be prepared at every patient visit to address the smoking cessation needs of all patients. The toolkit provided in this article will help facilitate evaluation of readiness and support of effective, long-term smoking cessation and reduce eventual smoking-related morbidities.

Therapy for specific problems: youth tobacco cessation

Cigarette smoking is the leading cause of premature morbidity and mortality in the United States. The majority of children smoke their first cigarette in early adolescence, and many older teens have well-established dependence on nicotine. Efforts to promote and support smoking cessation among these youth smokers are critical. The available experimental studies of youth cessation interventions find that behavioral interventions increase the chances of youth smokers achieving successful cessation. Currently there is insufficient evidence for the effectiveness of pharmacological treatments with youth smokers. Many innovative studies have been compromised by challenges in recruiting sufficient numbers of youth, obtaining approval for waivers of parental consent, and high attrition in longitudinal studies. Key areas for future work include bridging the fields of adolescent development and treatment design, matching treatments to developmental trajectories of smoking behavior, better understanding treatment processes and treatment moderators, and building demand for evidence-based cessation treatments.