Effectiveness of Ecological Momentary Assessment Based Smoking Cessation Intervention

A personal quit plan includes (1) self-help techniques on handling craving; (2) suggestions to avoid the reported pro-smoking cues; (3) whether to quit progressively or abruptly; (4) referral for existing smoking cessation service; and (5) instruction of using over-the-counter (OTC) nicotine replacement therapy (NRT), if OTC-NRT is preferred by the participant will be designed and give to the participants via a nurse-led phone call.

Participants will receive 10-week tailored quitting reminder instant messages via WhatsApp and voluntarily discuss their quit plan with the research staff.