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Table 1 Demographic characteristics of CKDu cases in the endemic area, controls from the endemic area and controls from the non-endemic area

From: Chronic kidney disease of uncertain aetiology: prevalence and causative factors in a developing country

Characteristic Endemic area Non-endemic area
  CKDu cases Controls Controls
Total number 733 4044 250
Males, % 37.1 42.5 56
Age (years), mean (SD) 39.1 (14.2) 43.7 (13.9) 35.5 (14.0)
Farmer, % 38 43.9 18.3
BMI, kg/m2, mean (SD) 22.3 (4.6) 21.1 (4.1) 21.7 (4.4)
ACR ≥30 mg/g 733 0 0
  1. ACR albumin–creatinine ratio, BMI body mass index, SD standard deviation.