MDRD, CKD-Epi and Creatinine Clearance with 24-Hour Urine Collection Results in Patients with Chronic Kidney Disease

Siti Nurul Hapsari, Leonita Anniwati

Abstract


Kidney disease is a global public health problem, affecting over 750 million people worldwide. Glomerular Filtration Rate
(GFR), which is calculated by measuring the creatinine clearance with 24-hour urine collection (CC) can be inaccurate due to
improper urine collection, causing the need for an easier and accurate method of calculation. This study was an
observational analytical cross-sectional research using consecutive retrospective sampling. Samples were data of patients
with Chronic Kidney Disease (CKD) who underwent CC test at the Clinical Pathology Laboratory of the Dr. Soetomo Hospital
Surabaya during September-October 2018. Data were compared with the results of Cockcroft-Gault (CG), MDRD, and
CKD-Epi formula, and were analyzed using the one-sample Kolmogorov-Smirnov test, paired T-test, and Wilcoxon Signed
Rank test. Correlation of CC results with CG, MDRD, and CKD-Epi results was tested with Spearman's rho and Bland Altman
test. The difference test of CC with CG, MDRD, and CKD-Epi showed results of (p=0.000), (p=0.194), and (p=0.468),
respectively. There were significant differences between CC compared to CG, but not MDRD and CKD-Epi. There was a
moderate correlation between CG, MDRD, CKD-Epi, and CC with r=0.529; 0.448, and 0.463, respectively. The most
compatible formula was CKD-Epi. The measurement of GFR with CC correlated with CG, MDRD, and CKD-Epi; therefore, they
could be used as an alternative method to calculate GFR. Further experiments using an exogenous marker should be
performed to determine a suitable eGFR formula according to the degree of damage to the kidney.


Keywords


Chronic kidney disease, glomerular filtration rate, creatinine clearance, eGFR

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DOI: http://dx.doi.org/10.24293/ijcpml.v27i1.1628

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