A WeChat-Based Smoking Cessation Intervention for Chinese Smokers: A Randomized Controlled Trial (Preprint)

BACKGROUND China is the largest tobacco producer and has the highest number of tobacco consumers in the world. Extensive research has demonstrated ways that social media can assist in quitting smoking. WeChat is the most commonly used social media platform in China; however, it has not yet been used for smoking cessation interventions. OBJECTIVE The objectives of this study are (1) to evaluate the effectiveness of a WeChat-based smoking cessation intervention; and (2) to examine a possible synergistic effect of integrating oral health and smoking-related information into a tailored, Transtheoretical Model (TTM) guided smoking cessation intervention. METHODS Eligible adults were recruited through WeChat from July 1 to August 6, 2019, to participate in a 3-arm, single-blinded, randomized controlled trial. 403 participants were enrolled and randomized into three groups: Standard Group (smoking cessation intervention only, n=136), Enhanced Group (smoking cessation + oral health education interventions, n=136), or Waitlist Group (delayed smoking cessation intervention, n=132). The intervention was delivered through WeChat with total of three weeks. Participants were asked to complete questionnaires at baseline and follow-up assessments as well as process evaluation at each intervention week. The primary outcome was Stage of Change, and the secondary outcomes were 7-day Point Prevalence Abstinence (PPA), 24-hour PPA, daily cigarette use, and nicotine dependence at 4 weeks follow-up after intervention comparing intervention groups and control group. The overall attrition rate was 46%. Paired t-tests, McNemar tests, and linear and logistic regression were used to examine differences in smoking cessation outcomes within and between groups. RESULTS Compared to baseline, at follow-up, all groups experienced smokers had significantly greater reduction in nicotine dependence scores (Standard: 1.8; Enhanced: 1.9, and Waitlist: 0.4). At 4-week follow-up, compared to the Waitlist Group, smokers from the Enhanced Group and the Standard Group had significantly lower nicotine dependence scores, lower daily cigarette use, and were more likely to have stage of change progression movement. Participants in Enhanced Group (β=-1.28, 95%CI: -2.13, -0.44) and the Standard Group (β=-1.13, 95%CI: -1.95, -0.30) also reported larger change in nicotine dependence score, compared to participants in the Waitlist Group. CONCLUSIONS This WeChat-based intervention was overall effective for smoking cessation, with enhanced cessation when additionally incorporating an oral health education intervention. Future smoking cessation programs should consider inclusion of oral health education. More broadly, in light of continued social distancing, WeChat could be considered as a platform for smoking cessation and other behavioral interventions.

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Urban and Rural Disparities in a WeChat-Based Smoking Cessation Intervention among Chinese Smokers

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18136731 ◽

2021 ◽

Vol 18 (13) ◽

pp. 6731

Author(s):

Ting Luo ◽

Mirandy Li ◽

Donna Williams ◽

Jackson Fritz ◽

Stephen Phillippi ◽

...

Keyword(s):

Smoking Cessation ◽

Rural Areas ◽

Stage Of Change ◽

Smoking Cessation Intervention ◽

Secondary Outcome ◽

Control Group ◽

Standard Group ◽

Cessation Intervention ◽

Rural And Urban

Introduction: Tobacco use, which is directly responsible for 10% of total deaths per year globally, remains consistently high, with approximately 20% of the population reporting regular consumption globally. Moreover, health disparities regarding tobacco consumption and smoking cessation are growing between rural and urban populations worldwide. Social media interventions for tobacco cessation may effectively reach both groups. The objective of this study was to evaluate the efficacy of a WeChat-delivered smoking cessation intervention among rural and urban Chinese smokers, and to assess moderating variables that may contribute to differential intervention efficacy. Methods: WeChat was used to recruit smokers into this intervention study between 1 July and 5 August 2019. Participants were randomized to one of three intervention schedules: participants in the Standard Group and the Enhanced Group received 20 smoking-related messages over 2 weeks, whereas participants in the Enhanced Group received an extra 6 oral health-related messages for one week. Participants in the control group received 20 smoking-related messages after the post-intervention assessment. Participants completed questionnaires at baseline and at 4 weeks follow-up. Our primary outcome was smoking cessation stage of change and secondary outcome was 24-h point prevalence abstinence (PPA). Urban and rural areas were based on self-reported living areas. Chi-squared test, Fisher’s exact test, ANOVA test, linear regression, and logistic regression were used for analysis. Results: Overall, 403 participants completed the intervention (233 rural, 107 suburban, 63 urban). Compared to urban participants, rural participants were more likely to have progressed to a later stage of change (β = 0.40, 95% CI: 0.13, 0.67) and to report higher 24-h PPA rates at follow-up (aOR = 3.23, 95% CI: 1.36, 7.68). After stratification by living area, the intervention effects in stage of change and 24-h PPA rate at follow-up were only found in the urban subgroup. Discussion: Smokers who lived in rural areas reported better smoking cessation outcomes compared with urban smokers; however, the efficacy of a WeChat-based smoking cessation intervention was only found for participants living in an urban area. WeChat based smoking cessation interventions should be used to promote smoking cessation in urban, suburban, and rural areas.

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Assessing the efficacy and impact of a personalised smoking cessation intervention among type 2 diabetic smokers: study protocol for an open-label randomised controlled trial (DISCGO-RCT)

BMJ Open ◽

10.1136/bmjopen-2020-040117 ◽

2020 ◽

Vol 10 (11) ◽

pp. e040117

Author(s):

Carole Clair ◽

Aurélie Augsburger ◽

Priska Birrer ◽

Isabella Locatelli ◽

Joelle Schwarz ◽

...

Keyword(s):

Type 2 Diabetes ◽

Smoking Cessation ◽

Smoking Cessation Intervention ◽

Randomised Control Trial ◽

Primary Study ◽

Smoking Abstinence ◽

Open Label ◽

Cessation Intervention

IntroductionFew studies have assessed the efficacy of smoking cessation interventions in individuals with type 2 diabetes, but interventions adapted to the specific needs of this population are warranted. The aim of this study is to assess the efficacy of a smoking cessation intervention in a population of smokers with type 2 diabetes and to measure the metabolic impact of smoking cessation.Methods and analysisThe study is an open-label, randomised control trial. Participants recruited from a sanitary region of Switzerland will be randomly allocated to either the intervention or the control arm. The intervention group will have four individual counselling sessions over 12 weeks. Trained research nurses will conduct the behavioural intervention, using motivational interviews and addressing diabetes and gender specificities. The control group will have one short counselling session at baseline and will be given written information on smoking cessation. Both groups will have a follow-up visit at 26 and 52 weeks. Demographic and medical data will be collected at baseline and follow-up, along with blood and urine samples. The primary study outcome is continuous smoking abstinence validated by expired-air carbon monoxide from week 12 to week 52. Secondary study outcomes are continuous and 7-day point prevalence smoking abstinence at 12 and 26 weeks; change in motivation to quit and cigarette consumption; and change in glycosylated haemoglobin levels, body weight, waist circumference and renal function after smoking cessation. In a subsample of 80 participants, change in stool microbiota from baseline will be measured at 3, 8 and 26 weeks after smoking cessation.Ethics and disseminationEthical approval has been obtained by the competent ethics committee (Commission cantonale d’éthique de la recherche sur l’être humain, CER-VD 2017–00812). The results of the study will be disseminated through publications in peer-reviewed journals and conference presentations.Trial registration numbersClinicalTrials.gov NCT03426423 and SNCTP000002762; Pre-results.

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