Promoting Smoking Cessation in Campus

Study Overview
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Brief Summary
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This study aims to explore the feasibility, preliminary effectiveness, and implementation outcomes of chatbot-led smoking cessation support in community smokers.

Official Title
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Promoting Smoking Cessation in Campus Via Smoking Cessation Contest: a Chatbot-based Smoking Cessation Intervention

Conditions
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Smoking Cessation, Mobile Health

Intervention / Treatment
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* Behavioral: 5A's/5R's advice
* Other: Brief leaflet on health warning and smoking cessation
* Other: Self-help smoking cessation booklet
* Behavioral: Counselor-led individual support
* Behavioral: Chatbot-led group support


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: aged 18 and above, reside in Zhuhai for the next 6 months; smoke at least 1 cigarette or use e-cigarettes daily; Having a smartphone and a WeChat account, being able to use WeChat skillfully. Exclusion Criteria: Smokers who have communication barrier (either physically or cognitively); Smokers who are currently participating in other SC programmes or services

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Intervention group<br>5A's/5R's advice+ Chatbot-led group support+ Counselor-led individual support+ health warning leaflet+ Self-help booklet | Behavioral: 5A's/5R's advice<br>* 5A's (Ask, Advise, Assess, Assist, Arrange) for smokers who are ready to quit, and 5R's (relevance, risks, rewards, roadblocks, and repetition) for smokers who are not ready to quit.<br>Other: Brief leaflet on health warning and smoking cessation<br>* The contents of the leaflet include the absolute risk of smoking, diseases caused by active and second-hand smoking, horrible pictorial warnings of the health consequences of active and second-hand smoking, and the benefits of quitting.<br>Other: Self-help smoking cessation booklet<br>* The contents include information about the benefits of quitting, methods to quit, how to handle withdrawal symptoms, misperceptions of quitting, etc.<br>Behavioral: Counselor-led individual support<br>* Participants will receive three months of counselor-led individual support via WeChat. The regular messages and instant messaging on psychosocial support aim to provide cessation advice, increase self-efficacy and confidence, and social support and behavioral capacity of quitting.<br>Behavioral: Chatbot-led group support<br>* Participants will receive three months of chatbot-led group support via WeChat.<br>|
| Active Comparator: Control group<br>5A's/5R's advice+ Chatbot-led group support+ health warning leaflet+ Self-help booklet | Behavioral: 5A's/5R's advice<br>* 5A's (Ask, Advise, Assess, Assist, Arrange) for smokers who are ready to quit, and 5R's (relevance, risks, rewards, roadblocks, and repetition) for smokers who are not ready to quit.<br>Other: Brief leaflet on health warning and smoking cessation<br>* The contents of the leaflet include the absolute risk of smoking, diseases caused by active and second-hand smoking, horrible pictorial warnings of the health consequences of active and second-hand smoking, and the benefits of quitting.<br>Other: Self-help smoking cessation booklet<br>* The contents include information about the benefits of quitting, methods to quit, how to handle withdrawal symptoms, misperceptions of quitting, etc.<br>Behavioral: Chatbot-led group support<br>* Participants will receive three months of chatbot-led group support via WeChat.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Participation rate of eligible smokers | The percentage of eligible smokers who agree to participate in the intervention | Baseline | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Biochemical validated quit rate | The primary outcomes are biochemically validated quit rate (exhaled CO < 4 ppm or salivary cotinine < 30 ng/ml) at 3-month in the two groups | 3 and 6 months follow-up | 
| Self-reported 7-day point prevalence quit rate | Self-reported 7-day point prevalence quit rate in the two groups | 3 and 6 months follow-up | 
| Smoking reduction rate | Rate of smoking reduction by at least half of baseline amount in the two groups | 3 and 6 months follow-up | 
| Engagement in chatbot-led group support and/or counselor-led individual support | Self-reported engagement in chatbot-led/counselor-led support in the two groups | 3 and 6 months follow-up |