Motivational Interviewing for Smoking Cessation

Study Overview
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Brief Summary
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The purpose of this study is to determine whether or not motivational interviewing is effective in smoking cessation at general practice setting in China.

Detailed Description
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OBJECTIVES: • To compare the effectiveness of motivational interviewing versus brief advice by conducting a randomized controlled trial in General Practice Setting in China. OUTLINE: This is a randomized controlled study. Patients are randomized to either the intervention arm or the control arm. • Arm I (intervention): Patients will be given a 20 minutes personal talk in the family physician's office during the visit. The family physicians will determine the stage of change in smoking cessation (precontemplative, contemplative, action, maintenance and relapse) and use the motivational interviewing skills during the talk. The motivational interviewing skills include expressing empathy, developing discrepancy, rolling with resistance, supporting self efficacy. Up to six phone calls will be given to the patients during the follow-up, using the motivational interviewing skill. • Arm II (control): Patients will receive brief advice for smoking cessation, lasting approximately 5 minutes. The risks of smoking and the advantages of quitting will be explained. The information provided during the talk will be standardized. No phone call will be given during the follow-up.

Official Title
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Motivational Interviewing Versus Brief Advice for Smoking Cessation in General Practice

Conditions
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Smoking Cessation

Intervention / Treatment
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* Behavioral: Motivational interviewing


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Between the ages of 18 and 80 years. Any person who replies Yes when asked Do you smoke?. Agree to participate the trial and be followed for at least one year. Exclusion Criteria: With severe mental illness, serious drug dependent patients. Cannot understand conversation or cannot communicate, such as deafness or dementia. Cannot be followed up for one year, such as not likely survive for more than one year.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Motivational interviewing group<br>Structural motivational interviewing for one section (about 20 mins)，provided by family physician Follow-up telephone call，provided by family physician | Behavioral: Motivational interviewing<br>* 1. Structural motivational interviewing for one section (about 20 mins)，provided by family physician;2. Follow-up telephone call，provided by family physician.<br>|
| No Intervention: Brief advice group<br>Brief advice without motivational interviewing (about 5 mins), provided by family physician | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 1 week point prevalence abstinence (PPA) | Validation: exhaled carbon monoxide (CO) (< 10 ppm) | Self-reported PPA at 1 week follow-up | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 1 month PPA | Validation: exhaled CO (< 10 ppm) | Self-reported 7-day PPA at 1 month follow-up | 
| 3 month PPA | Validation: exhaled CO (< 10 ppm) | Self-reported 7-day PPA at 3 month follow-up | 
| 6 month PPA | Validation: exhaled CO (< 10 ppm) | Self-reported 7-day PPA at 6 month follow-up | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Motivational Interviewing, Smoking Cessation