Conclusions
This RCT found that a behavior change theory–based intervention using personalized text messages increased biochemically verified smoking cessation at 6 months compared with an intervention using nonpersonalized text messages. This study provided new evidence supporting the utility of mobile health methods for smoking cessation. Overall, this research not only contributes to the development of a feasible smoking cessation intervention but also provides further evidence regarding the potential benefits of mobile health interventions for other behaviors, adding to previous research on this topic.