Correlation between Blood Pressure and Body Mass Index, in Patients Undergoing Chronic Haemodialysis in Dr Sardjito Hospital, Yogyakarta

Background: Hypertension is a common complication of chronic kidney disease (CKD) and persists among most patients with End Stage Renal Disease (ESRD) on maintenance haemodialysis (HD). Hypertension in the haemodialysis patient population is multifactorial. Using various definitions of hypertension, the prevalence of hypertension in haemodialysis patients is estimated to be about 75%. In the general population, obesity is positively correlated with hypertension. On the haemodialysis patients, there was hypothesis of “reverse epidemiology” in the relationship between body mass index (BMI) and blood pressure (BP) of haemodialysis patients, that high BMI may be not completely related to hypertension. Objective: The aim of this study is to evaluate the relationship between blood pressure and BMI in HD patients and dialysis adequacy Method: This is prospective, observational, cross-sectional study in which patients undergoing maintenance haemodialysis ≥ three months in dr Sardjito Hospital, Yogyakarta, were enrolled in April 2023. The Mann Whitney test and one way Annova analysis was done to study the correlation between BMI and BP. Result: There was a total 114 patients in our study which 62 (54,4%) were male and 52 (45,6%) were female. Mean age was 53(15-87), the most common comorbidity is hypertension. Mean BMI was 23.48±4.36, the mean dialysis vintage was 38.4 (3-33.07) months. There was significant correlation between blood pressure and BMI (p= 0,040), and no significant correlation between BP and dialysis adequation (p= 0,622) Conclusion: There was significant correlation between blood pressure and BMI (p=0,048)