The primary outcome measure is self-reported 26-week continuous smoking abstinence with biological verification. Potential participants will register their interest by sending WeChat messages or text messages, or making a voice call. ParticipantsĬhinese-speaking current smokers (have smoked ≥100 cigarettes in their life-time and currently smoke cigarettes) aged 18+ years willing to make a quit attempt within 1 month ( n = 2000) will be recruited by on- and off-line advertising. This on-line trial has no restrictions on setting or location. Both groups will be followed-up to 26 weeks (6 months) after quit day. The intervention group will also receive the 2 weeks pre- and 12 weeks post-quit ‘WeChat WeQuit’ intervention. In this two-arm randomized controlled trial (RCT), the control group will receive only a digital version of a booklet of ‘Happy Quit’. ![]() This protocol is for a study that aims to assess the efficacy of a WeChat-based smoking cessation intervention (‘WeChat WeQuit’) for treatment-seeking smokers in China. As the most popular all-in-one social media application providing free instant messaging, voice, text, pictures, videos and location information exchange via smartphone, WeChat holds promise for delivering smoking cessation services to a large number of people at low unit cost in China, a country with more than 300 million smokers. Since its first release in 2011, WeChat (Chinese pinyin: Wei Xin) has been widely used to promote health.
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