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Table 4 Results on quit rate and readiness to quit smoking using complete data

From: Effectiveness of an individual acceptance and commitment therapy for smoking cessation, delivered face-to-face and by telephone to adults recruited in primary health care settings: a randomized controlled trial

 

Intervention (N = 35)

Control (N = 31)

  
 

N

n (%)

N

n (%)

Risk Ratio

(95% CI)

p-value

Primary outcome

Self-reported 7-day point prevalence abstinence at the 12-month follow-up

70

12 (17.1%)

74

10 (13.5%)

1.06 (0.54–2.11)

0.174

Bio-validated quit rate

    

0.53 (0.14, 2.04)

0.179

Secondary outcome

      

Readiness to quit smoking

    

–

0.001*

 Pre-contemplation

70

7 (20.0%)

74

17 (54.8%)

  

 Contemplation

 

2 (5.7%)

 

5 (16.1%)

  

 Preparation

 

12 (34.3%)

 

0 (0%)

  

 Action

 

8 (22.9%)

 

7 (22.6%)

  

 Maintenance

 

6 (17.1%)

 

2 (6.5%)

  
  

Mean ± SD

 

Mean ± SD

Mean Difference (95% CI)

 

Average daily cigarette consumption in the past 12 months

34

8.43 ± 9.45

31

9.50 ± 7.58

−1.07 (−5.35–3.20)

0.617

Average number of quit attempts in the past 12 months

32

1.69 ± 0.47

28

1.54 ± 0.51

0.15 (−0.10–0.41)

0.235

Importance of quitting

35

87.86 ± 18.36

31

77.26 ± 18.25

10.60 (1.58–19.62)

0.022

Difficulty in quitting

35

69.14 ± 25.25

31

60.48 ± 26.59

8.66 (−4.15–21.46)

0.180

Confidence in being able to quit

35

68.00 ± 26.32

31

64.84 ± 25.93

3.16 (−9.72–16.04)

0.625

Psychological flexibility

35

28.97 ± 3.12

25

27.64 ± 3.89

1.33 (− 0.48–3.15)

0.147

Changes in the secondary outcomes from baseline to 12 months

  

n (%)

 

n (%)

  

Readiness to quit smoking

35

 

31

 

–

0.003*

 Less than before

 

7 (20.0%)

 

19 (61.3%)

  

 Same as before

 

8 (22.9%)

 

3 (9.7%)

  

 More than before

 

20 (57.1%)

 

9 (29.0%)

  
  

Mean ± SD

 

Mean ± SD

Mean Difference (95% CI)

 

Importance of quitting

35

15.00 ± 24.10

31

7.90 ± 24.21

7.10 (−4.80–19.00)

0.238

Difficulty in quitting

35

−4.43 ± 19.81

31

−0.48 ± 20.67

−3.94 (−13.91–6.02)

0.432

Confidence in being able to quit

35

12.00 ± 25.99

31

6.77 ± 24.27

5.23 (−7.19–17.64)

0.404

Psychological flexibility

25

2.72 ± 3.63

16

0.43 ± 3.37

2.28 (− 0.01–4.57)

0.051

  1. * Statistically significant at an overall type 1 error of 5% based on Hochberg’s set-up procedure