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Table. 3.

Table. 3.

Concordance rate between eGFR and mGFR categories

eGFR, mL/min/1.73 m2 N participants Overall group concocrdance rate (%) Lin’s CCC for group agreement (95% CI)

mGFR, mL/min/1.73 m2

<15 15–29 30–44 45–59 60–89 ≥90
2009 CKD-EPI < 15 70 13 1 0 0 0 63.4 0.895 (0.885–0.904)
15–29 37 73 11 0 0 0
30–44 3 44 90 43 5 0
45–59 4 9 70 93 48 0
60–89 0 2 11 81 371 96
≥ 90 0 1 0 6 120 352
2021 CKD-EPI < 15 62 11 1 0 0 0 60.5 0.884 (0.873–0.894)
15–29 42 61 7 0 0 0
30–44 6 57 81 25 2 0
45–59 4 10 72 87 30 0
60–89 0 2 22 103 324 62
≥ 90 0 1 0 8 188 386
EKFC < 15 68 12 1 0 0 0 61.0 0.891 (0.881–0.901)
15–29 41 78 12 1 0 0
30–44 3 41 99 50 5 0
45–59 2 9 61 103 73 0
60–89 0 1 10 66 382 169
≥ 90 0 1 0 3 84 279

Abbreviations: CI, confidence interval; CKD-EPI, Chronic Kidney Disease Epidemiology Collaboration; eGFR, estimated glomerular filtration rate; EKFC, European Kidney Function Consortium; Lin’s CCC, Lin’s concordance correlation coefficient; mGFR, measured glomerular filtration rate.

Ann Lab Med 2023;43:244~252 https://doi.org/10.3343/alm.2023.43.3.244

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