Setting and participants
death
This quasi-experimental study was conducted from July to October 2019 in three cardiac care units in Kowsar hospital, Shiraz, Iran. Using G-Power software and based on a previous study on success in smoking cessation, with P1 = 0.67, P2 = 0.37, α = 0.05, and power = 0.9, a 92-patient sample size was estimated. Therefore, considering the possibility of attrition, 100 patients were selected [During the investigation, two people from the intervention group and two people from the control group were excluded from the study because they did not refer to the hospital and did not complete the post-test. Furthermore, one person from the control group was omitted because of death and one person from the intervention group was unwilling to continue the intervention; finally, the data of 94 patients were analyzed.