Zhang T, et al. - In the present study, the prevalence and predictors of smoking relapse after percutaneous coronary intervention (PCI) were evaluated in Chinese patients. The results of this study demonstrated that the prevalence of smoking relapse was high in the patients who stop smoking in the hospital due to PCI. Employment, nicotine dependence, depression, and smoking self-efficacy in the post-PCI patients were the predictors of smoking relapse.