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Table 2 Prevalence of eGFR< 60 in the absence of hypertension, diabetes and proteinuria by age, sex and study area

From: Prevalence and risk factors for impaired kidney function in the district of Anuradhapura, Sri Lanka: a cross-sectional population-representative survey in those at risk of chronic kidney disease of unknown aetiology

Prevalence

Area 1

(n = 629)

Area 2

(n = 689)

Area 3

(n = 650)

Area 4

(n = 672)

Area 5

(n = 711)

Total

(n = 3551)

%

Cl

%

Cl

%

Cl

%

Cl

%

Cl

%

Cl

eGFR < 60 (n = 202)

 18–30 years (n = 728)

0

 

0.7

0.0–2.1

0.7

0.0–2.1

0

 

0

 

0.3

0.0–0.7

 31–40 years (n = 955)

0

 

2.8

0.3–5.3

0.6

0.0–1.8

0.5

0.0–1.6

0.4

0.0–1.3

0.8

0.2–1.4

 41–50 years (n = 788)

1.6

0.0–3.9

4.1

1.3–6.9

4.0

1.1–7.0

5.4

1.9–8.8

4.2

1.1–7.3

4.0

2.6–5.3

 51–60 years (n = 502)

3.5

0.1–6.9

6.4

1.7–11.2

9.1

3.3–14.8

8.3

2.7–13.9

12.1

6.0–18.1

7.8

5.6–10.1

 61–70 years (n = 297)

13.2

4.9–21.5

21.4

10.3–32.5

22.4

11.3–33.4

43.1

29.9–56.2

25.9

15.9–36.0

24.9

20.1–29.7

  > 70 (n = 81)

30.7

11.7–49.7

40.0

11.9–68.1

28.5

1.5–55.6

58.3

37.0–79.6

37.5

10.8–64.1

40.0

29.9–50.0

 All (n = 3351)

3.7

2.2–5.1

5.6

3.9–7.4

5.4

3.6–7.1

8.5

6.4–10.6

6.7

4.9–8.6

6.0

5.2–6.8

eGFR < 60 among males (n = 116)

 18–30 years (n = 162)

0

0.0

0

0.0

0

0.0

0

0.0

0

0.0

0

0.0

 31–40 years (n = 246)

0

0.0

3.4

0.0–8.1

2.3

0.0–7.0

0

0.0

1.8

0.0–5.5

1.6

0.0–3.2

 41–50 years (n = 288)

2.9

0.0–8.9

2.8

0.0–6.7

9.3

2.6–16.1

8.9

1.2–16.6

3.8

0.0–9.2

5.9

3.2–8.6

 51–60 years (n = 179)

8.1

0.0–17.3

20.0

6.0–33.9

13.5

1.9–25.1

29.4

13.3–45.5

25.0

10.1–39.8

19.0

13.2–24.8

 61–70 years (n = 125)

11.7

0.3–23.2

36.8

12.9–60.7

41.7

20.4–62.9

50.0

28.4–71.6

50.0

28.4–71.6

36.0

27.5–44.5

  > 70 (n = 37)

42.8

0.0–92.3

14.3

0.0–49.2

50.0

0.0–100.0

60.0

23.1–96.9

42.8

0.0–92.2

43.2

26.5–59.9

 All (n = 1037)

5.8

2.4–9.1

8.0

4.5–11.5

11.8

7.5–16.2

17.5

12.0–23.0

13.2

8.5–17.9

11.2

9.2–13.1

eGFR < 60 among females (n = 86)

 18–30 years (n = 566)

0

0.0

0.9

0.0–2.6

0.8

0.0–2.5

0

0.0

0

0.0

0.3

0.0–0.8

 31–40 years (n = 709)

0

0.0

2.4

0.0–5.0

0

0.0

0.6

0.0–1.9

0.6

0.0–1.7

0.7

0.1–1.3

 41–50 years (n = 500)

2.5

0.0–6.0

5.5

1.2–9.9

1.0

0.0–3.1

3.7

0.1–7.5

3.6

0.1–7.2

3.4

1.8–4.9

 51–60 years (n = 323)

0

0.0

2.9

0.0–7.2

7.3

0.2–14.3

3.6

0.0–8.6

10.7

3.5–17.8

4.9

2.5–7.3

 61–70 years (n = 172)

13.5

1.9–25.1

12.9

0.4–24.4

6.9

0.0–16.7

37.9

19.1–56.7

13.0

2.9–23.2

16.3

10.7–21.8

  > 70 (n = 44)

41.7

8.9–74.4

66.7

12.5–100.0

12.5

0.0–42.0

50.0

16.8–83.2

33.3

0.0–87.5

40.9

25.8–56.0

 All (n = 2314)

2.7

1.2–4.2

4.4

2.5–6.3

2.1

0.7–3.4

4.9

3.0–6.9

4.1

2.4–5.8

3.7

2.9–4.5