title: A randomized controlled trial of group intervention based on social cognitive theory for smoking cessation in China.
abstract: BACKGROUND
  New training programs need to be developed to help Chinese smokers achieve quitting. The objective of this study was to assess the effectiveness of a group smoking cessation intervention based on social cognitive theory among Chinese smokers.
  
  
  METHODS
  A total of 225 smokers were eligible for the study and were randomly assigned to an intervention group (n=118) and a control group (n=107). The intervention group received the course soon after a baseline survey, whereas the control group received routine training in the first 6 months, and then took the same course. Effectiveness was evaluated at 6-month and 1-year follow-up from baseline.
  
  
  RESULTS
  After 6 months, 40.5% (47/116) in the intervention group and 5.0% (5/101) in the control group quit smoking (absolute risk reduction: 35.5% [95% confidence interval (CI): 24.2-46.8%]). The 6-month continuous abstinence rate was 28.4% (33/116) in the intervention group and 3.0% (3/101) in the control group (absolute risk reduction 25.4% [95% CI: 15.6-35.2%]). At 1-year follow-up, the proportion of quitting and the 6-month abstinence rate in the intervention group were 35.8% and 22.0%, respectively. The factors associated with smoking cessation during the 6 month period were intervention (adjusted odds ratio [OR]=6.42 [95% CI: 2.46-13.28]), as well as anticipation of quitting (adjusted OR=1.46 [95% CI: 1.12-1.91]) and skill self-efficacy score in the baseline (adjusted OR=1.04 [95% CI: 1.01-1.07]). The same intervention was conducted in the control group after the 6-month study, in which a similar intervention effect was observed.
  
  
  CONCLUSIONS
  A smoking cessation intervention based on social cognitive theory among Chinese smokers is highly effective.
authors.affiliation: School of Public Health, Fudan University, Shanghai, People's Republic of China.
authors.forename: Pinpin
authors.initials: P
authors.lastname: Zheng
authors.forename: Fengxia
authors.initials: F
authors.lastname: Guo
authors.forename: Yue
authors.initials: Y
authors.lastname: Chen
authors.forename: Yingying
authors.initials: Y
authors.lastname: Fu
authors.forename: Tingting
authors.initials: T
authors.lastname: Ye
authors.forename: Hua
authors.initials: H
authors.lastname: Fu
mesh_terms: D000328:Adult; D002681:China / Q000453:epidemiology; D003071:Cognition; D005260:Female; D006801:Humans; D008297:Male; D020377:Self Efficacy; D016540:Smoking Cessation / Q000379:methods*; D012931:Social Environment; D012944:Social Support