Study design and setting
This study was experimental research conducted on two groups of HPs: 1- patients participating in an FCEP (hereafter refers to as FCEPG) and 2- patients in the control group (hereafter refers to as CG). All patients were recruited from the hemodialysis ward of Shahid Beheshti Hospital in Hamadan, Iran. This ward has 30 beds in three halls and provides hemodialysis to about 70 patients every day in morning and evening sessions.Designed as a single-blind experiment, the study was arranged such that patients remain unaware of the designated interventions so that their knowledge would not affect their behavior.