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Table 3 Distribution of eGFR categories among 7768 apparently healthy CKD screening participants in Anuradhapura district by presence of proteinuria

From: Normality data of eGFR and validity of commonly used screening tests for CKD in an area with endemic CKD of unknown etiology; need for age and sex based precise cutoff values

eGFR level (mL/min/1.73m2) Urine protein positive Urine protein negative
n % n %
Normal (> 90) 746 18.2 3359 81.8
Mildly decreased (60–89.9) 548 21.4 2007 78.6
Moderately to severe decrease (30–59.9) 240 37.6 399 62.4
Severely decreased (15–29.9) 85 75.9 27 24.1
Kidney failure < 15 40 78.4 11 21.6
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