Group hypnotherapy versus group relaxation for smoking cessation: an RCT study protocol

BMC Public Health

Michael Schaub¹  Kristina Rust²  Thomas Kraemer²  Maria Dickson-Spillmann¹ 

[1]Swiss Research Institute for Public Health and Addiction, Konradstrasse 32, 8031 Zurich, Switzerland

[2]Institute of Forensic Medicine, Zurich University, Winterthurerstrasse 190, 8057 Zurich, Switzerland

关键词: Randomised controlled trial;    Cotinine;    Relaxation;    Hypnosis;    Smoking cessation;    Tobacco;   

Others  :  1163704
DOI  :  10.1186/1471-2458-12-271

 received in 2012-03-02, accepted in 2012-04-04,  发布年份 2012

【 摘 要 】

Background

A significant number of smokers would like to stop smoking. Despite the demonstrated efficacy of pharmacological smoking cessation treatments, many smokers are unwilling to use them; however, they are inclined to try alternative methods. Hypnosis has a long-standing reputation in smoking cessation therapy, but its efficacy has not been scientifically proven. We designed this randomised controlled trial to evaluate the effects of group hypnosis as a method for smoking cessation, and we will compare the results of group hypnosis with group relaxation.

Methods/Design

This is a randomised controlled trial (RCT) to compare the efficacy of a single session of hypnosis with that of relaxation performed in groups of 8-15 smokers. We intend to include at least 220 participants in our trial. The inclusion criteria include smoking at least 5 cigarettes per day, not using other cessation methods and being willing to quit smoking. The intervention is performed by a trained hypnotist/relaxation therapist. Both groups first receive 40 min of mental preparation that is based on motivational interviewing. Then, a state of deep relaxation is induced in the hypnosis condition, and superficial relaxation is induced in the control condition. Suggestions are made in the hypnosis condition that aim to switch the mental self-image of the participants from that of smokers to that of non-smokers. Each intervention lasts for 40 min. The participants also complete questionnaires that assess their smoking status and symptoms of depression and anxiety at baseline, 2 weeks and 6 months post-intervention. In addition, saliva samples are collected to assess cotinine levels at baseline and at 6 months post-intervention. We also assess nicotine withdrawal symptoms at 2 weeks post-intervention.

Discussion

To the best of our knowledge, this RCT is the first to test the efficacy of group hypnosis versus group relaxation. Issues requiring discussion in the outcome paper include the lack of standardisation of hypnotic interventions in smoking cessation, the debriefing of the participants, the effects of group dynamics and the reasons for dropouts.

Trial registration

Current Controlled Trials, ISRCTN72839675.

【 授权许可】

   
2012 Dickson-Spillmann et al; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

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