Tehran University of Medical Sciences The Research in Heart Yield and Translational Medicine (RHYTHM) 3115-7270 10 1 2015 10 13 1 8 EN Soheila Ranjbaran Department of Health Education and Health Promotion, School of Health, Tehran University of Medical Sciences, Tehran, Iran. Tahereh Dehdari Department of Health Education and Health Promotion, School of Health, Iran University of Medical Sciences, Tehran, Iran. Khosro Sadeghniiat- Haghighi Occupational Sleep Research Center, Baharloo Hospital, Tehran University of Medical Sciences, Tehran, Iran. Mahmood Mahmoodi-Majdabadi Department of Biostatistics, School of Health, Tehran University of Medical Sciences, Tehran, Iran. 2015 10 13 2015 10 13 Background: Poor sleep quality (SQ) is common among patients after coronary artery bypass graft surgery (CABG). This study attempted to determine the status of SQ following an intervention based on the PRECEDE-PROCEED model in patients with poor SQ after CABG. Methods: This study was a randomized clinical trial. The study sample, including 100 patients referred to the Cardiac Rehabilitation Clinic of Tehran Heart Center, was assigned either to the intervention (recipient of exercise and lifestyle training plus designed intervention based on the PRECEDE-PROCEED model) or to the control group (recipient of exercise and lifestyle training). Eight training sessions over 8 weeks were conducted for the intervention group. Predisposing, enabling, and reinforcing factors as well as social support and SQ were measured in the intervention group before and one month after the intervention and compared to those in the control group at the same time points. Results: The mean age of the patients in the intervention (24% women) and control (24% women) groups was 59.3 ± 7.3 and 59.5 ± 9.3 years, respectively. The results showed that the mean scores of SQ (p value < 0.001), knowledge (p value < 0.001), beliefs (p value < 0.001), sleep self-efficacy (p value < 0.001), enabling factors (p value < 0.001), reinforcing factors (p value < 0.001), and social support (p value < 0.001) were significantly different between the intervention and control groups after the intervention. Conclusion: Adding an intervention based on the PRECEDE-PROCEED model to the cardiac rehabilitation program may further improve the SQ of patients. https://jthc.tums.ac.ir/index.php/jthc/article/view/358 https://jthc.tums.ac.ir/index.php/jthc/article/download/358/351