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Table 3 Smoking cessation outcomes of the control versus intervention conditions

From: Impact of additional counselling sessions through phone calls on smoking cessation outcomes among smokers in Penang State, Malaysia

Outcomes Group type Pvaluea
  Control Intervention  
  N = 111 N = 120  
Third month monitoring
Self-reported 4-week point prevalence abstinence    0.049
 Yes 49 (44.1%) 69 (57.5%)  
 No 62 (55.9%) 51 (42.5%)  
Breath CO level 7.75 ± 3.9 7.24 ± 3.6 0.334b
Smoking status (verified)    0.144
 Non smoker 41 (36.9%) 56 (46.7%)  
 Smoker 70 (63.1%) 64 (53.3%)
Sixth month monitoring
Self-reported 4-week point prevalence abstinence    < 0.001
 Yes 57 (51.4%) 89 (74.2%)  
 No 54 (48.6%) 31 (25.8%)  
Breath CO level 7.12 ± 4.3 5.73 ± 3.5 0.005b
Smoking status (verified)    < 0.001
 Non smoker 54 (48.6%) 86 (71.7%)  
 Smoker 57 (51.4%) 34 (28.3%)  
  1. aFisher’s exact test; bMann–Whitney U test.