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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.