The goal of this pilot trial is to develop and examine the trial feasibility and acceptability of a chatbot for smoking cessation in youth smokers. Specific aims include: 1. To assess how many youth smokers accept the invitation to participate in the trial 2. To assess the retention of the participants through 6 months after treatment initiation 3. To assess the acceptability of the chatbot in terms of participants' compliance and usability rating of the chatbot. 4. To estimate the intervention effect on abstinence outcomes 5. To explore the participants' perception and experiences in the chatbot
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
154
Access to a chatbot that provides smoking cessation counselling based on the 5A's (Ask, Advice, Assess, Assist, Arrange follow-up) and 5R's (Risk, Relevance, Rewards, Relevance, Roadblocks, Repetition) tobacco intervention models from baseline to 3-month post-baseline.
Usual treatment provided by the Youth Quitline, i.e., telephone counselling for smoking cessation based on the 5As and 5Rs models delivered by trained peer counsellors at baseline and 1 week, 1 month and 3 months post-baseline
HKU Youth Quitline
Hong Kong, Hong Kong
Biochemically-validated tobacco abstinence
Defined as a negative result of the iScreen OFD test for measuring salivary cotinine (with a cut-off of lower than 30ng/mL)
Time frame: 6 months after randomisation
Recruitment rate
Number of participants divided by the number of eligible subjects
Time frame: Through recruitment completion, about 9 months
Retention rate
Number of participants completed the follow-up divided by the number of participants
Time frame: 6 months
Self-reported 7-day point-prevalence tobacco abstinence
Being completely smoke-free in the past 7 days
Time frame: 3 months after randomisation
Self-reported 7-day point-prevalence tobacco abstinence
Being completely smoke-free in the past 7 days
Time frame: 6 months after randomisation
Self-reported 30-day point-prevalence tobacco abstinence
Being completely smoke-free in the past 30 days
Time frame: 3 months after randomisation
Self-reported 30-day point-prevalence tobacco abstinence
Being completely smoke-free in the past 30 days
Time frame: 6 months after randomisation
Self-reported 24-hour quit attempt
Serious attempt to quit smoking for 24 hours or longer in daily smokers
Time frame: 3 months after randomisation
Self-reported 24-hour quit attempt
Serious attempt to quit smoking for 24 hours or longer in daily smokers
Time frame: 6 months after randomisation
Self-reported 50% smoking reduction
Smoking reduction by at least half of the baseline daily number of cigarettes in continued smokers
Time frame: 3 months after randomisation
Self-reported 50% smoking reduction
Smoking reduction by at least half of the baseline daily number of cigarettes in continued smokers
Time frame: 6 months after randomisation
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