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Table 6 Regression models of changes of smokers’ smoking status, smoking-related knowledge and attitudes scores in the intervention arm

From: Evaluation of the effectiveness of a WHO-5A model based comprehensive tobacco control program among migrant workers in Guangdong, China: a pilot study

Variables B SE Wald/t P 95%CI
Lower bound Upper bound
Model 1. Logistic regression model of changes of smoker’ smoking status
(Constant) 2.197 0.770 8.1441 0.004   
Times of attending WHO-5A group counseling −0.059 0.029 3.9741 0.046 0.890 0.990
Confidence in achieving successful smoking cessation −1.664 0.817 4.1541 0.042 0.038 0.938
Healthy problems 1.326 0.589 5.0661 0.024 1.187 11.950
Model 2. Multiple linear regression model of changes of smoking-related knowledge scores
(Constant) 3.774 .758 4.978 < 0.001 2.288 5.260
Knowledge scores at baseline 0.419 0.115 3.650 < 0.001 0.194 0.664
WHO-5A group counseling 0.996 0.505 1.971 0.049 0.006 1.985
Educational posters 1.925 0.754 2.551 0.011 0.446 3.403
Migrant times
 1 Ref.      
 2–3 −0.937 0.623 −1.505 0.132 −2.158 0.283
  ≥ 4 −2.062 0.731 −2.822 0.005 −3.495 −0.630
Model 3. Multiple linear regression model of changes of smoking-related attitudes scores
(Constant) 7.770 1.147 6.776 < 0.001 5.523 10.017
Attitude scores at baseline 0.386 0.114 3.400 0.001 0.164 0.609
Migrant times
 1 Ref.      
 2–3 −1.667 0.877 −1.900 0.057 −3.386 0.053
  ≥ 4 −3.240 1.047 −3.095 0.002 −5.291 −1.188