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Table 4 Performance of screening tests, in comparison to eGFR among CKD screening participants from Anuradhapura, Sri Lanka

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< 60 mL/min/1.73m2 eGFR> 90 mL/min/1.73m2
n % n %
UACR
  > 30 45 35.7 40 6.6
  = < 30 81 64.3 564 93.4
UPCR
  > 150 75 59.5 137 22.7
  = < 150 51 40.5 467 77.3
Urine salicylic acid
 Trace or above 62 49.2 120 19.9
 Negative 64 50.8 484 80.1
Urine dip sticka
 Trace or above 25 25.5 25 6.3
 Negative 73 74.5 373 93.7
  1. eGFR estimated glomerular filtration rate, CKD Chronic kidney disease, UACR Urine albumin creatinine ratio, UPCR Urine protein creatinine ratio. afor 230 patients, urine dip stick results were not available
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