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Table 3 Evolution of primary outcome variables by treatment group

From: Impact of a board-game approach on current smokers: a randomized controlled trial

Treatment group Pick-Klop Psycho-education Waiting list Pick-Klop Psycho-education Waiting list Pick-Klop Psycho-education Waiting list
Assessment-time Pretest (T0) Pretest (T0) Pretest (T0) Week 2 (T1) Week 2 (T1) Week 2 (T1) Month 3 (T2) Month 3 (T2) Month 3 (T2)
Attitudes Towards Nicotine Replacement Therapy Scale          
- Perceived advantage 19.3 ±8.6 18.8 ±8.8 19.7 ±8.8 25.2 ±7.9 25.1 ± 7.7 18.3 ± 8.6 24.4 ±8.7 25.8 ±7.1 20.0 ±8.2
- Drawback 9.9 ±4.3 11.3 ±4.4 10.0 ±4.7 10.5 ± 4.2 9.9 ± 3.8 11.2 ± 4.6 10.9 ±4.6 9.8 ±3.7 11.0 ±5.3
- “Don’t know” answers 2.2 ±2.7 2.4 ±2.9 2.5 ±3.2 1.1 ± 1.9 0.9 ± 1.7 2.5 ± 2.5 0.8 ±1.8 0.8 ±1.3 2.0 ±1.1
Attitudes Towards Smoking Scale          
- Adverse effects of smoking 38.6 ±6.8 38.8 ±8.5 39.8 ±5.3 40.1 ± 7.6 40.9 ± 7.6 41.4 ± 5.3 39.5 ±7.9 41.8 ±7.3 39.9 ±6.1
- Psychoactive benefits of smoking 13.9 ± 4.1 14.3 ± 4.1 14.0 ± 4.3 12.8 ± 4.0 14.0 ± 3.6 13.6 ± 3.8 12.8 ± 4.4 12.7 ± 3.9 13.5 ± 3.6
- Pleasure of smoking 14.4 ±3.8 13.6 ±3.1 14.7 ±3.6 13.3 ± 3.6 12.6 ± 3.3 14.9 ± 3.4 12.8 ±3.4 12.7 ±4 15.4 ±4.2
Smoking Self-Efficacy Questionnaire          
- Internal score 15.6 ±5.9 14.0 ±6.0 15.9 ±6.7 16.2 ± 5.8 15.1 ± 5.8 15.6 ± 5.6 18.8 ±6.9 14.9 ±7.9 15.4 ±5.2
- External score 13.8 ±6.3 11.9 ±5.3 13.7 ±7.0 14.6 ± 4.8 13.7 ± 5.5 13.7 ± 5.8 16.4 ±6.9 14.1 ±7.6 14.1 ±6.7
- Total score 29.3 ± 10.8 25.8 ± 9.5 29.8 ± 12.5 30.8 ± 9.0 28.8 ± 10.0 29.3 ± 10.3 35.2 ±12.4 29.4 ±14.9 29.7 ±10.2
Cigarettes smoked per day 15.8 ±8.3 15.5 ±7.3 12.8 ±7.0 15.0 ± 8.7 14.9 ± 7.7 13.3 ± 12.5 10.1 ±8.8 12.7 ±10.0 11.9 ±7.9
Stage of change, 1 %          
- Precontemplation 38.3 20.0 43.3 42.5 20.0 63.3 50.0 46.7 60.0
- Contemplation 48.3 61.7 46.7 36.7 60.0 30.0 32.5 38.3 35.0
- Preparation 13.3 18.3 10.0 17.5 18.3 3.3 2.5 3.3 1.7
- Action -  -  -  3.3 1.7 3.3 15.0 11.7 3.3
Non-smokers,% -  -  -  3.3 1.7 3.3 15.0 11.7 3.3
  1. Interval variables are reported by their means and standard deviations, M ± SD. Categorical variables are reported by their percentages,%.
  2. 1For the purposes of GEE analysis, participants in the precontemplation stage are grouped in stage 1 and participants in all other stages in stage 2.