Results
Success in quitting cigarette smoking was significantly higher in the intervention group (n = 29, 61.7%) compared to the control group (n = 2, 4.3%) (p < 0.001). Moreover, after the intervention, the mean score of self-efficacy in the intervention group (11.01 ± 44.75) was significantly higher than the control group (6.51 ± 3.11) and also higher than before the intervention (5.51 ± 2.44) (P˂0.001). The motivational text-messaging program can improve self-efficacy and success in smoking cessation in patients after coronary angioplasty.