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Table 1 Characteristics of study subjects in 2011

From: Higher estimated net endogenous acid production with lower intake of fruits and vegetables based on a dietary survey is associated with the progression of chronic kidney disease

  

NEAP (mEq/day)

P

< 50.1 (n = 50) (25.6–50.1)

≥50.1 (n = 45) (50.8–79.2)

Sex (Male)

n (%)

22 (44.0)

34 (75.6)

0.004

Age

years

66.7 ± 11.6

64.8 ± 11.1

0.427

BMI

kg/m2

24.8 ± 4.7

24.8 ± 4.4

0.980

eGFR

ml/min/1.73 m2

63.4 ± 17.2

63.0 ± 21.5

0.908

Creatinine

mg/dl

0.9 ± 0.3

1.0 ± 0.4

0.095

CKD stage 1

n (%)

2 (4.0)

4 (8.9)

0.799

CKD stage 2

n (%)

29 (58.0)

24 (53.3)

CKD stage 3

n (%)

16 (32.0)

14 (31.1)

CKD stage 4

n (%)

3 (6.0)

3 (6.7)

Proteinuria

n (%)

21 (42.0)

26 (57.8)

0.183

Diabetes

n (%)

36 (72.0)

25 (55.6)

0.146

Nutrition education

n (%)

6 (12.0)

8 (17.8)

0.615

Hyperkalemia

n (%)

4 (8.0)

1 (2.2)

0.424

Serum uric acid

mg/dl

5.5 ± 1.6

5.8 ± 1.4

0.391

Serum electrolytes

 K

mEq/L

4.2 ± 0.4

4.1 ± 0.3

0.683

 Na

mEq/L

139.4 ± 2.6

140.3 ± 1.5

0.037

 Cl

mEq/L

102.9 ± 3.0

104.0 ± 2.2

0.048

NEAP

mEq/day

39.5 ± 6.7

61.9 ± 6.8

< 0.001

  1. Data are expressed as the mean ± standard deviation or number (percentage). BMI Body mass index, CKD Chronic kidney disease, eGFR estimated glomerular filtration rate, Nutrition education Received nutrition education, NEAP Net endogenous acid production