Baseline characteristics of non CKD, CKD, hemodialysis and peritoneal dialysis patients involved in the study (N = 114).

Continuous data are expressed as median (interquartile range) and compared using Kruskall & Wallis test. Categorical data are expressed as the frequency (%) and compared using Chi square test. Abbreviations: CKD, chronic kidney disease, BMI, body mass index, eGFR estimated glomerular filtration rate, HD, hemodialysis, N/A, not applicable, PD, peritoneal dialysis, RAA, renin angiotensin aldosterone. eGFR was calculated using CKD EPI formula. Differences were considered significant at P<0.05.