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Background: China has approximately 300 million current smokers, and smoking cessation services are limited. This study aimed to assess the efficacy of a Cognitive Behavioral Theory-based smoking cessation intervention ('WeChat WeQuit') via the most popular social media platform in China, WeChat.
Methods: A parallel, single-blind, two-arm randomised controlled trial was conducted via WeChat between March 19, 2020 and November 16, 2022. Chinese-speaking adult smokers (n = 2000) willing to quit within one month were recruited and randomised in a 1:1 ratio. The intervention group (n = 1005) received the 'WeChat WeQuit' program and the control group (n = 955) received control messages for 14 weeks (2-week prequit and 12-week postquit). Participants were followed up to 26 weeks after the quit date. The primary outcome was self-reported continuous smoking abstinence rate, biochemically validated at 26 weeks. The secondary outcomes were self-reported 7-day and continuous abstinence rates at 6 months. All analyses were by intention to treat. The trial is registered at ClinicalTrials.gov (NCT03169686).
Findings: By intention-to-treat analysis, the biochemically verified 26-week continuous abstinence rate was 11.94% in the intervention group and 2.81% in the control group (OR = 4.68, 95% CI: 3.07-7.13, < 0.0001). The self-reported 7-day abstinence rates ranged from 39.70% at week 1-32.04% at week 26 for the intervention group and 14.17%-11.86% in the control group for weeks 1 and 26, respectively; the self-reported continuous abstinence rates at weeks 1 and 26 ranged from 34.33% to 24.28% and 9.65% to 6.13% in the intervention group and the control group respectively (all < 0.0001). Participants with low nicotine dependence or previous quit attempts were more likely to successfully quit smoking.
Interpretation: The 'WeChat WeQuit' intervention significantly increased smoking abstinence rates at 6 months and should be considered for treatment-seeking smokers in China.
Funding: The research is supported by the Natural Science Foundation of Hunan Province (2020JJ4794, YLiao), the K.C. Wong Postdoctoral Fellowship for YLiao to study at King's College London, and China Medical Board (CMB) Open Competition Program (grant no. 15-226, 22-485, YLiao).
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http://dx.doi.org/10.1016/j.eclinm.2023.102009 | DOI Listing |
Nutr Metab Cardiovasc Dis
August 2025
Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Background And Aims: Although secondhand smoke (SHS) exposure has been linked with metabolic syndrome (MetS) in never-smokers, its effects among individuals who have quit smoking remain unclear. This study investigated the relationship between changes in SHS exposure and incident MetS in a large cohort of Korean former smokers.
Methods And Results: We analyzed 17,269 Korean former smokers without MetS at baseline from a longitudinal cohort, with a median follow-up of three years.
Nicotine Tob Res
September 2025
College of Public Health, University of Nebraska Medical Center, Omaha, NE, United States.
Introduction: Nicotine pouches (NPs) are an emerging nicotine delivery system. Understanding nicotine and toxicant exposure among NP users compared with users of other tobacco products and non-users is critical for informing public health strategies.
Methods: Data (n = 4527) were drawn from the Population Assessment of Tobacco and Health Study Wave 7 (2022-2023).
BMJ Public Health
September 2025
School of Public Health, University of Sydney, Sydney, New South Wales, Australia.
Introduction: Curbing adolescent vaping is a public health priority and little evidence exists examining protective factors. Using a strength-based approach, this study explored the relationship between adolescent vaping health perceptions and vaping use.
Methods: Cross-sectional data from 9000 Australian adolescents aged 14-17 years recruited via multiple online panels as part of the Generation Vape Study were used.
J Nurs Scholarsh
September 2025
Health District Northeast Jaén, Andalusian Health Service, Úbeda, Jaén, Spain.
Introduction: Smoking is the leading cause of preventable deaths. The training of professionals on brief tobacco interventions (BTIs) increases the effectiveness of these interventions.
Objective: To assess the effectiveness of an online training program on BTI based on the 5As and 5Rs model in acquiring anti-tobacco brief advice competencies among nurses.
BMJ Open
September 2025
Faculty of Health and Medicine, Lancaster University Medical School, Lancaster, UK.
Introduction: Vaping among children and young people (CYP) has increased globally over the past decade, with rates stabilising in the UK in recent years. Factors such as curiosity, social influence, stress management and attractive flavours contribute to its popularity. Although the long-term health impacts are uncertain, vaping poses risks including nicotine dependence, cardiovascular and respiratory issues, and cognitive impairment, though evidence on long-term effects is still emerging.
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