The goal of this pilot trial is to evaluate the feasibility of a mobile-assisted brief intervention for smoking cessation in community-based individuals in Singapore. Specific aims include:
1. To assess how many eligible individuals 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 intervention in terms of participants' engagement and ratings 4. To examine the intervention effect on abstinence outcomes
Participants will be randomly assigned to either the intervention group or control group and followed for 6 months from randomisation.
Aged 21 to 80 years
Smoked at least one cigarette daily
Able to communicate and read in English or Chinese
Own a smartphone with WhatsApp installed
Exposed to any smoking cessation treatment in the past 3 months
Pregnant women
Parallel
Brief cessation advice + self-help booklet
BehavioralParticipants will receive brief cessation advice following the AWARD (ask, warn, advise, refer, do-it-again) model and a 24-page self-help booklet.
Opt-out referral
BehavioralResearch personnel will assist the participant in signing up for the I Quit Programme to receive additional cessation support, unless they decline
Mobile chat messaging
BehavioralParticipants will receive personalised chat-based support delivered by a live counsellor for 3 months via WhatsApp. The message will incorporate behaviour change techniques for smoking cessation and mindfulness principles to strengthen participants' capacity to quit smoking.
Biochemically validated smoking abstinence rate
Defined as an exhaled carbon monoxide level of \<5 parts per million or a negative salivary cotinine test (cut off 30ng/mL)
Recruitment rate
Number of participants divided by the number of eligible subjects
Retention rate
Number of participants completed the follow-up divided by the number of participants
Self-reported 7-day point-prevalence smoking abstinence rate
Being completely smoke-free in the past 7 days
Self-reported 7-day point-prevalence smoking abstinence rate
Being completely smoke-free in the past 7 days
Self-reported smoking reduction rate
Smoking reduction by at least half of the baseline daily number of cigarettes in individuals who continue to smoke
Self-reported smoking reduction rate
Smoking reduction by at least half of the baseline daily number of cigarettes in individuals who continue to smoke
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