title: Online Social Support for the Prevention of Smoking Relapse: A Content Analysis of the WhatsApp and Facebook Social Groups.
abstract: Online social groups have been increasingly used for smoking cessation intervention.
  
  
  
  This study aimed to explore the social support components of the online discussion through WhatsApp and Facebook, how these components addressed the need of relapse prevention, and how the participants evaluated this intervention.
  
  
  
  We coded and analyzed the posts (N = 467) by the 82 recent quitters in WhatsApp and Facebook social groups, who were recruited from the eight smoking cessation clinics in Hong Kong to participate in a pragmatic randomized trial of relapse prevention. Participants' postintervention feedback was collected from the 13 qualitative interviews after the intervention.
  
  
  
  The WhatsApp social groups had more participants' posts than the Facebook counterparts. The participants' posts in the online social groups could be classified as sharing views and experiences (55.5%), encouragement (28.7%), and knowledge and information (15.8%). About half of the participants' posts (52.9%) addressed the themes listed in the U.S. Clinical Practice Guideline for preventing smoking relapse. The participants perceived the posts as useful reminders for smoking cessation, but avoidance of reporting relapse, inactive discussions, and uninteresting content were barriers to the success of the intervention.
  
  
  
  Online social groups provided a useful platform for the delivery of cessation support and encouragement of reporting abstinence, which support relapse prevention. The effectiveness of such intervention can be improved by encouraging more self-report of relapse, active discussions, sharing of interesting content, and using an appropriate discussion platform.
  
  
  
  Quitters who participate in the online social groups can benefit from peer support and information sharing, and hence prevent smoking relapse.
authors.affiliation: 1 School of Public Health, The University of Hong Kong , Hong Kong, China .|2 School of Nursing, The University of Hong Kong , Hong Kong, China .
authors.forename: Yee Tak Derek
authors.initials: YTD
authors.lastname: Cheung
authors.affiliation: 3 Integrated Centre on Smoking Cessation, Tung Wah Group of Hospitals , Hong Kong, China .
authors.forename: Ching Han Helen
authors.initials: CHH
authors.lastname: Chan
authors.affiliation: 2 School of Nursing, The University of Hong Kong , Hong Kong, China .
authors.forename: Man Ping
authors.initials: MP
authors.lastname: Wang
authors.affiliation: 2 School of Nursing, The University of Hong Kong , Hong Kong, China .
authors.forename: Ho Cheung William
authors.initials: HCW
authors.lastname: Li
authors.affiliation: 1 School of Public Health, The University of Hong Kong , Hong Kong, China .
authors.forename: Tai-Hing
authors.initials: TH
authors.lastname: Lam
mesh_terms: D000328:Adult; D005260:Female; D015438:Health Behavior; D007722:Health Knowledge, Attitudes, Practice; D006723:Hong Kong; D006801:Humans; D008297:Male; D008875:Middle Aged; D017010:Reminder Systems; D055502:Secondary Prevention / Q000379:methods*; D016540:Smoking Cessation / Q000379:methods*; D061108:Social Media; D012944:Social Support; D012959:Socioeconomic Factors
keywords: behavioral health; e-health; m-health; telecommunications; telenursing