Effects of Behavior Promotion Program for Dietary Phosphorus Control in Chronic Kidney Disease Patients Undergoing Hemodialysis

Abstract

The purpose of this quasi-experimental research was to 1) study individual characteristics of chronic kidney disease (CKD) patients undergoing hemodialysis at the Hemodialysis Department of Samitivej Sriracha Hospital, 2) compare knowledge scores of their understanding of dietary phosphorus control before and after the introduction of behavior promotion program for dietary phosphorus control, 3) compare consumption behavior score of phosphorus-restricted foods before and after the program, and 4) compare blood phosphorus level before and after the program. The study group was chronic kidney disease patients undergoing hemodialysis, with blood phosphorus level higher than 5 milligrams per deciliter. Behavior promotion program for dietary phosphorus control, adapted from Fisher and Harman’s model, was introduced to a total of 27 individuals and lasted for 8 weeks. Tools used in data collection were questionnaire inquiring personal data, dietary phosphorus control knowledge test, and behavioral details regarding the consumption of phosphorus-restricted foods. Data analysis included frequencies, percentages, means, standard deviations and t-tests. Results revealed that 1) the study group aged 61-70 years old with an average age of 55 years old, were males, Buddhists, high school graduates, private business owners, and had other personal illnesses. Most of them underwent hemodialysis due to diabetes, with an average 14 years of hemodialysis 2) knowledge scores of their understanding of dietary phosphorus control after participating in the program significantly improved at p=0.05, 3) consumption behavior scores of phosphorus-restricted foods after participating in the program significantly improved at p=0.05, and lastly, 4) their blood phosphorus level was lower, with no statistical significance