Web-based intervention for adolescent nonsmokers to help parents stop smoking: a pilot feasibility study. The television, school, and family smoking prevention and cessation project. VIII. Student outcomes and mediating variables. Using the internet to assist smoking prevention and cessation in schools: a randomized, controlled trial. Group-randomized trial of a proactive, personalized telephone counseling intervention for adolescent smoking cessation. Effects of an advocacy intervention to reduce smoking among teenagers. Preventing escalation in problem behaviors with high-risk young adolescents: immediate and 1-year outcomes. A randomized trial of a family-based smoking prevention intervention in managed care. The impact of physicians' brief smoking cessation counseling: a MIRNET study. The influence of a family program on adolescent tobacco and alcohol use. A randomized controlled trial of two primary school intervention strategies to prevent early onset tobacco smoking. An informal school-based peer-led intervention for smoking prevention in adolescence (ASSIST): a cluster randomised trial. Reducing adolescent smoking: a comparison of peer-led, teacher-led, and expert interventions. A preliminary study of the use of peer support in smoking cessation programs for pregnant adolescents. Provocative appeals in anti-smoking mass media campaigns targeting adolescents--the accumulated effect of multiple exposures. Behavioral counseling for reducing children's ETS exposure: implementation in community clinics. Randomized trial of brief family interventions for general populations: adolescent substance use outcomes 4 years following baseline. Contingency management and motivational enhancement: a randomized clinical trial for college student smokers. [Results of a controlled randomized study on prevention of smoking habit in adolescents]. Skills intervention to prevent cigarette smoking among adolescents. Efficacy of an emergency department-based motivational teenage smoking intervention.
A novel approach to tobacco control is to engage adolescent nonsmokers in support roles to encourage and help their parents stop smoking. This pilot study examined the feasibility and potential efficacy of a web-based support skills training (SST) intervention for adolescents to help a parent stop smoking. Forty nonsmoking adolescents 13-19 years of age (70% female, 93% White) were enrolled and randomly assigned to a health education (HE) control group (n=20) or SST (n=20). Both consisted of written materials and five weekly, 30 min, web-based, counselor-facilitated group sessions. Parents were enrolled for assessments only. Adolescents and parents completed assessments at baseline, week 6 (post-treatment), week 12 and 6-months follow-up. Both interventions were feasible based on treatment acceptability ratings, study retention and treatment compliance. The biochemically confirmed 6-month smoking abstinence rate was higher for parents linked to teens in HE (35%, 7/20) than in SST (10%, 2/20), p=0.13. About half of parents in each group reported a quit attempt since study enrollment. Teens can be engaged to help parents stop smoking. Future research is warranted on determining effective intervention approaches.
                Copyright © 2011 Elsevier Ltd. All rights reserved. This paper presents the student outcomes of a large-scale, social-influences-based, school and media-based tobacco use prevention and cessation project in Southern California.
                The study provided an experimental comparison of classroom delivery with television delivery and the combination of the two in a 2 x 2 plus 1 design. Schools were randomly assigned to conditions. Control groups included "treatment as usual" and an "attention control" with the same outcome expectancies as the treatment conditions. Students were surveyed twice in grade 7 and once in each of grades 8 and 9. The interventions occurred during grade 7.
                We observed significant effects on mediating variables such as knowledge and prevalence estimates, and coping effort. The knowledge and prevalence estimates effects decayed partially but remained significant up to a 2-year follow-up. The coping effort effect did not persist at follow-ups. There were significant main effects of both classroom training and TV programming on knowledge and prevalence estimates and significant interactions of classroom and TV programming on knowledge (negative), disapproval of parental smoking, and coping effort. There were no consistent program effects on refusal/self-efficacy, smoking intentions, or behavior.
                Previous reports demonstrated successful development and pilot testing of program components and measures and high acceptance of the program by students and parents. The lack of behavioral effects may have been the result of imperfect program implementation or low base rates of intentions and behavior. To evaluate the impact of a classroom-based, Web-assisted tobacco intervention addressing smoking prevention and cessation with adolescents.
                A two-group randomized control trial with 1,402 male and female students in grades 9 through 11 from 14 secondary schools in Toronto, Canada. Participants were randomly assigned to a tailored Web-assisted tobacco intervention or an interactive control condition task conducted during a single classroom session with e-mail follow-up. The cornerstone of the intervention was a five-stage interactive Web site called the Smoking Zine (http://www.smokingzine.org) integrated into a program that included a paper-based journal, a small group form of motivational interviewing, and tailored e-mails.
                Resistance to smoking, behavioral intentions to smoke, and cigarette use were assessed at baseline, postintervention, and three- and six-month follow-up. Multilevel logistic growth modeling was used to assess the effect of the intervention on change over time.
                The integrated Smoking Zine program helped smokers significantly reduce the likelihood of having high intentions to smoke and increased their likelihood of high resistance to continued cigarette use at 6 months. The intervention also significantly reduced the likelihood of heavy cigarette use adoption by nonsmokers during the study period.
                The Smoking Zine intervention provided cessation motivation for smokers most resistant to quitting at baseline and prevented nonsmoking adolescents from becoming heavy smokers at 6 months. By providing an accessible and attractive method of engaging young people in smoking prevention and cessation, this interactive and integrated program provides a novel vehicle for school- and population-level health promotion. The Hutchinson Study of High School Smoking randomized trial was designed to rigorously evaluate a proactive, personalized telephone counseling intervention for adolescent smoking cessation.
                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.
                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.
                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. To test whether high school students' participation in advocacy activities related to the advertising, availability, and use of tobacco in their communities would prevent or reduce their own tobacco use.
                Ten continuation high schools in northern California, randomly assigned to a semester-long program in which students either carried out advocacy activities to counter environmental-level smoking influences in their communities (treatment) or learned about drug and alcohol abuse prevention (control).
                Eleventh and 12th grade high school students; 5 (advocacy) treatment and 5 control schools over 4 semesters from 2000 through 2002.
                Self-reported smoking defined as nonsmokers (those who had never smoked tobacco or those who were former smokers), light smokers (those who smoked <1 pack per week), or regular smokers (those who smoked >or=1 pack per week), and confirmed by carbon monoxide level readings. The following 3 constructs related to social cognitive theory- perceived incentive value, perceived self-efficacy, and outcome expectancies-were assessed.
                There was a significant net change from baseline to the end of the semester (after the intervention) between treatment and control schools for students who were regular smokers, but not for students who were nonsmokers or light smokers. Regular smoking decreased 3.8% in treatment schools and increased 1.5% in control schools (P<.001). Regular smoking continued to decrease at 6 months after the intervention in treatment schools, with a total change in prevalence from 25.1% to 20.3%. Involvement in community-advocacy activities and the 3 social constructs-perceived incentive value, perceived self-efficacy, and outcome expectancies-also showed significant net changes between treatment and control schools (all P values <.01).
                Student engagement in community-advocacy activities that addressed environmental influences of cigarette smoking resulted in significant decreases in regular smoking. The study tested alternative intervention strategies to reduce escalation in problem behaviors among high-risk young adolescents (11 to 14 years old). A total of 158 families with young adolescents (male and female) participated in this study. Of these, 119 families were randomly assigned to 1 of the following intervention conditions: (a) parent focus, (b) teen focus, (c) parent and teen focus, (d) self-directed change (materials only). In addition, 39 families of young adolescents were recruited as a quasi-experimental control. Parent focus and teen focus interventions resulted in immediate beneficial effects in observed and reported family conflict. The parent intervention conditions showed immediate beneficial effects on behavior problems at school. Longitudinal trends suggest that the parent focus condition may reduce subsequent tobacco use, compared with all other approaches. Interventions that aggregated high-risk youths into groups, however, showed the highest escalations in tobacco use and problem behavior at school, beginning at termination and persisting to follow-up. These findings are discussed with respect to the need to re-evaluate strategies that aggregate high-risk youths into intervention programs and focus more on strategies to engage parents in prevention. Each day more than 2000 youth under age 18 become daily smokers and the age of tobacco initiation has been going down. Health care settings can partner with families to encourage parent-child interactions that prevent youth tobacco use. This study evaluates a smoking prevention intervention package for parents and children (aged 10-12) provided through their managed care organization.
                A two-arm (usual care vs intervention) randomized trial was employed. The intervention included a mailed parental smoking prevention kit, outreach follow-up telephone calls to the parent by a health educator, child materials, medical record cues for physicians to deliver prevention messages, and parent newsletter. Outcome measures were susceptibility to smoking, experimentation with smoking, and smoking in the past 30 days as assessed by 20-month follow-up surveys of children.
                A total of 4,026 families enrolled in the study. The response rate to the 20-month follow-up was 88%. There were no significant effects of the intervention on any of the primary outcomes. The intervention was associated with modest but statistically significant increases in parent-child discussions of smoking related topics.
                A minimal-intensity family-based prevention program did not significantly reduce rates of susceptibility or tobacco use among youth aged 10-12 at baseline and 11 to 14 at follow-up. Development and evaluation of innovative approaches to tobacco use prevention must continue, despite our disappointing results. Parents and health care systems are too important to abandon as channels for prevention messages. Although many family physicians may discuss smoking cessation with their patients, few do so consistently. A common belief among many physicians is that such efforts will not deter their patients from smoking. Others believe the time commitment required for a successful intervention is excessive. The present study addressed the above issues by examining the effect of a 3- to 5-minute unstructured physician discussion encouraging smoking cessation with family practice patients. Cigarette-smoking patients of two busy family practices in southeast Michigan were randomly assigned to either a control group receiving routine care or an intervention group receiving, in addition to routine care, smoking cessation counseling from their physician. A third comparison group was drawn from smokers in practices not involved in delivering the intervention. Two hundred thirty-eight patients from the intervention group, 178 from the control group, and 47 from the comparison group were followed up with a telephone interview at 6 months. Intervention group patients made significantly more quit attempts than did those in the control group (P less than .001), which was similar to the comparison group. At the 6-month follow-up, 8% of intervention group members, and 4% of both the comparison and control groups reportedly were abstinent from smoking. Among those contacted at the 1-year follow-up, the respective percentages abstinent were 8%, 3%, and 4%. Although these differences in quit rates were not statistically significant, the findings suggest that physicians can positively affect patient smoking cessation. This intervention was feasible in busy family practices, highlighting its generalizability and applicability to other family practice settings in the United States. This study examined a family-directed program's effectiveness in preventing adolescent tobacco and alcohol use in a general population.
                Adolescents aged 12 to 14 years and their families were identified by random-digit dialing throughout the contiguous United States. After providing baseline data by telephone interviews, they were randomly allocated to receive or not receive a family-directed program featuring mailed booklets and telephone contacts by health educators. Follow-up telephone interviews were conducted 3 and 12 months after program completion.
                The findings suggested that smoking onset was reduced by 16.4% at 1 year, with a 25.0% reduction for non-Hispanic Whites but no statistically significant program effect for other races/ethnicities. There were no statistically significant program effects for smokeless tobacco or alcohol use onset.
                The family-directed program was associated with reduced smoking onset for non-Hispanic Whites, suggesting that it is worthy of further application, development, and evaluation. In this article, we examine the impact of two universal, grade 1 preventive interventions on the onset of tobacco smoking as assessed in early adolescence. The classroom-centered (CC) intervention was designed to reduce the risk for tobacco smoking by enhancing teachers' behavior management skills in first grade and, thereby, reducing child attention problems and aggressive and shy behavior-known risk behaviors for later substance use. The family-school partnership (FSP) intervention targeted these early risk behaviors via improvements in parent-teacher communication and parents' child behavior management strategies. A cohort of 678 urban, predominately African-American, public school students were randomly assigned to one of three Grade 1 classrooms at entrance to primary school (age 6). One classroom featured the CC intervention, a second the FSP intervention, and the third served as a control classroom. Six years later, 81% of the students completed audio computer-assisted self-interviews. Relative to controls, a modest attenuation in the risk of smoking initiation was found for students who had been assigned to either the CC or FSP intervention classrooms (26% versus 33%) (adjusted relative risk for CC/control contrast=0.57, 95% confidence interval (CI), 0.34-0.96; adjusted relative risk for FSP/control contrast=0.69, 95% CI, 0.50-0.97). Results lend support to targeting the early antecedent risk behaviors for tobacco smoking. Schools in many countries undertake programmes for smoking prevention, but systematic reviews have shown mixed evidence of their effectiveness. Most peer-led approaches have been classroom-based, and rigorous assessments are scarce. We assessed the effectiveness of a peer-led intervention that aimed to prevent smoking uptake in secondary schools.
                We undertook a cluster randomised controlled trial of 10 730 students aged 12-13 years in 59 schools in England and Wales. 29 schools (5372 students) were randomly assigned by stratified block randomisation to the control group to continue their usual smoking education and 30 (5358 students) to the intervention group. The intervention (ASSIST [A Stop Smoking In Schools Trial] programme) consisted of training influential students to act as peer supporters during informal interactions outside the classroom to encourage their peers not to smoke. Follow-up was immediately after the intervention and at 1 and 2 years. Primary outcomes were smoking in the past week in both the school year group and in a group at high risk of regular smoking uptake, which was identified at baseline as occasional, experimental, or ex-smokers. Analysis was by intention to treat. This study is registered, number ISRCTN55572965.
                The odds ratio of being a smoker in intervention compared with control schools was 0.75 (95% CI 0.55-1.01) immediately after the intervention (n=9349 students), 0.77 (0.59-0.99) at 1-year follow-up (n=9147), and 0.85 (0.72-1.01) at 2-year follow-up (n=8756). The corresponding odds ratios for the high-risk group were 0.79 (0.55-1.13 [n=3561]), 0.75 (0.56-0.99 [n=3483]), and 0.85 (0.70-1.02 [n=3294]), respectively. In a three-tier multilevel model with data from all three follow-ups, the odds of being a smoker in intervention compared with control schools was 0.78 (0.64-0.96).
                The results suggest that, if implemented on a population basis, the ASSIST intervention could lead to a reduction in adolescent smoking prevalence of public-health importance. To test the effectiveness of a psychosocial strategy of smoking deterence on seventh grade students, the School Health Education Development project implemented peer-led, teacher-led, and expert-led interventions in six Vermont schools. Four additional schools served as control groups. The teacher-led approach reduced the rate of smoking onset and the intention to smoke in the future among highly vulnerable females but not among males. The peer-led approach reduced the behavioral intention to smoke for both sexes but did not affect current smoking behavior. The expert-led approach did not produce favorable effects. Both the peer-led and teacher-led interventions had positive, though not significant, effects on student perception of locus of control. In the control schools, females experienced higher levels of smoking onset than males. Generally, the study points toward further development of a teacher-led approach to smoking deterence based on the theory of adolescent psychosocial development and the principle of continuous reinforcement. This article describes preliminary findings of an experimental, randomized, three-group, controlled design examining the effectiveness of a smoking cessation intervention for pregnant teens. The three groups are: Teen FreshStart with a buddy program (TFSB), a Teen FreshStart program (TFS) without peer support, and the Usual Care (UC) control group. Forty-six subjects completed the post-intervention assessment of smoking status. The TFSB group consistently achieved greater smoking cessation across all measures when compared to the subjects in the other two groups. These results indicate that the use of peer support may be an effective adjunct in smoking cessation programs for pregnant adolescents. This paper reports findings from a longitudinal study that evaluated the accumulated effect of three consecutive mass media campaigns using provocative and dissonance arousing appeals to prevent cigarette smoking by adolescents. In the spring of 1992, all eligible adolescents aged 14 and 15 in one intervention county (N = 4898) and one control county (N = 5439) in Norway were included in the study, and were followed until they were 17 and 18 years of age in 1995. Only students who completed questionnaires both in 1992 and 1995 were included in the analyses. Among the non-smokers at baseline, a significantly lower proportion of adolescents of both genders had started to smoke in the intervention county compared to the proportion in the control county. Among those who were smokers at baseline, significantly more girls in the intervention county had stopped smoking than in the control county, while no significant difference between the counties was detected among boys. Our findings suggest that provocative and dissonance arousing appeals that create affective reactions and lead to interpersonal communication should be given more attention in campaigns designed to influence adolescent smoking. However, such appeals may easily produce negative reactions and the normative context should be thoroughly considered when using such appeals in future interventions. The present randomized controlled trial tested the effectiveness of a behavioral counseling program for reducing children's exposure to environmental tobacco smoke (ETS). Counseling was delivered by clinic staff as part of well-child health care services in a community clinic setting. A total of 150 mothers with children aged 4 years or younger were recruited. Parent-reported and children's urinary cotinine measures of ETS exposure were obtained at baseline, 3 months, 6 months (post-test), and 12 months (follow-up). Saliva samples were obtained from mothers who reported quitting smoking, for objective verification by thiocyanate analysis. After baseline, mothers were randomly assigned to a measures-only control condition or an intervention consisting of seven behavioral counseling sessions over 6 months. Counseling included behavioral contracting, self-monitoring, problem solving, and positive reinforcement. Results indicated acceptable test-retest reliability and validity of measures. Parent-reported measures indicated that, in both groups, children's exposure to their mothers' tobacco smoke in the home and to all tobacco smoke declined steeply from baseline to 6 months post-test, and remained essentially level during follow-up. Mothers' smoking rates followed the same pattern. Children's urinary cotinine concentrations did not show significant change over time in either group. Findings on the fidelity of treatment implementation suggest that the structure and funding of the community clinic health care system and associated staff turnover and training issues resulted in participants receiving a less efficacious intervention than in our past efficacy trials. Implications for future effectiveness trials are discussed. This study examined the long-term substance use outcomes of 2 brief interventions designed for general population families of young adolescents. Thirty-three public schools were randomly assigned to 3 conditions: the 5-session Preparing for the Drug Free Years Program, the 7-session Iowa Strengthening Families Program, and a minimal contact control condition. The pretest involved 667 6th graders and their families. Assessments included multiple measures of initiation and current use of alcohol, tobacco, and marijuana. Pretest data were collected in the 6th grade and the reported follow-up data were collected in the 10th grade. Significant intervention-control differences in initiation and current use were found for both interventions. It is concluded that brief family skills-training interventions designed for general populations have the potential to reduce adolescent substance use and thus have important public health implications. The efficacy of contingency-management (CM) and motivational enhancement therapy (MET) for college student smoking cessation was examined.
                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).
                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.
                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. We describe the results of a randomized controlled study on the efficacy of a smoking prevention program based on behavioral methods (Waterloo Smoking Prevention Program 1, adapted). 792 children of 12-13 years of age from the Health District of Rozzano (MI) were the study base. The program was delivered directly by voluntary teachers during school classes. Two follow-up, at 18 and 36 month from the end of the program were conducted using self-administered questionnaire and telephonic interviews. At 36 months the proportion of non-smokers was higher in the intervention group (55% vs 44%; OR (adjusted for clustering) = 1.7; p = .03) and that of regular (at least one cigarette a week) smokers lower (22% vs 39%) than in the control group. We found no difference of effect between males and females students. Social pressure associated with starting to smoke (friends, sibsters, parents smokers) measured before intervention had no demonstrable influence on efficacy. We propose this kind of intervention for Italian students as an effective and low-cost program, even though more research is needed to maintain effectiveness of these kind of programs beyond adolescence. Skills intervention to prevent cigarette smoking was evaluated with 689 adolescents. At 24-month follow-up, youths who received health information and skills intervention had lower intentions to smoke and less cigarette use than youths who received health information alone and youths who received no intervention. Conclusions about the effects of skills intervention are strengthened by the common preparation and random assignment of intervention leaders and by process measurement data. Motivational interviewing techniques have been minimally researched as a function of a teenage smoking intervention. The present study examined the efficacy of a theory-based motivational tobacco intervention (MTI).
                A randomized two-group design was used to compare 6-month post-baseline quit and reduction rates among teenagers who received the MTI with those who received brief advice or care as usual. Participants were smokers aged 14 to 19 years (N = 75) who presented for treatment in a university-affiliated hospital emergency department (ED). Motivational interviewing techniques were used by trained providers to facilitate individual change; stage-based take-home materials also were provided.
                Similar to past clinic-based studies of motivational interviewing with teenage smokers, our study found negative results in terms of intervention efficacy for cessation. Six-month follow-up cessation rates were nonsignificant--two teenagers quit smoking. Among teenagers who were available at follow-up, a medium effect size (Cohen's h = .38) was found for reduction and a large effect size (Cohen's h = .69) was found for percentage reduction, although these results also were not statistically significant.
                Although the major findings of this study were not significant, the reductions in tobacco use suggest that motivational interviewing may be a clinically relevant counseling model for use in teenage smoking interventions. However, many questions remain, and the current literature lacks studies on trials with significant outcomes using motivational interviewing in smoking cessation. Additionally, more research is needed to examine the suitability of the ED for MTI-type interventions.
Some well-executed RCTs show family interventions may prevent adolescent smoking, but RCTs which were less well executed had mostly neutral or negative results. There is thus a need for well-designed and executed RCTs in this area.