poor sleep quality in patients after coronary artery bypass graft surgery: an intervention study using the precede-proceed model

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.