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Table 2 Agreement analysis between equations by ICC according to age and gender

From: Different equations for estimating age-related changes of glomerular filtration rate in the healthy population

Age (years)

CKD-EPI ~ FAS

CKD-EPI ~ Xiangya

FAS ~ Xiangya

Males

Females

Males

Females

Males

Females

18–29

0.910

0.830

0.413

0.323

0.577

0.478

30–39

0.926

0.783

0.388

0.282

0.407

0.334

40–49

0.898

0.786

0.403

0.296

0.394

0.338

50–59

0.940

0.893

0.462

0.381

0.552

0.498

60–69

0.894

0.872

0.604

0.506

0.786

0.732

≥ 70

0.825

0.805

0.811

0.713

0.877

0.889

  1. ICC Intraclass correlation coefficient, CKD-EPI Chronic kidney disease epidemiology collaboration equation based on serum creatinine, FAS Full age spectrum based on serum creatinine and age