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Table 2 24 h urinary data in lithiasic patients and non-lithiasic patients

From: Evaluation of the chemical composition of nephrolithiasis using dual-energy CT in Southern Chinese gout patients

Variable

Non-lithiasic (n = 48)

Lithiasic (n = 36)

p

24h urine uric acid (mg)

3.2 ± 0.3

3.0 ± 0.2

0.5587

24h urine creatinine (mg)

11.6 ± 0.9

9.8 ± 0.7

0.1534

Ccr (ml/min)

98.7 ± 7.0

100.7 ± 8.7

0.8582

Cua (ml/min)

3.0 ± 0.3

3.1 ± 0.3

0.8260

FEua(%)

4.1 ± 0.6

3.5 ± 0.4

0.4961

24h urine Calcium(mg)

2.7 ± 0.4

3.2 ± 0.4

0.3283

24h urine Sodium(mg)

179.7 ± 14.8

161.0 ± 13.7

0.3726

24h urine Potassium(mg)

33.6 ± 2.5

34.6 ± 2.6

0.7860

24h urine Chloride(mg)

154.6 ± 14.1

153.8 ± 12.5

0.9703

24h urine Phoshate(mg)

12.4 ± 0.8

11.5 ± 1.1

0.4855

24h urine Magnesium(mg)

2.7 ± 0.2

2.4 ± 0.2

0.2912

Urine pH

6.0 ± 0.1

5.8 ± 0.1

0.1325

24h urine volume(L)

2.2± 0.1

2.1 ± 0.1

0.8688

No. of abnormality(%)

 hypercalciuria

2 (4.2%)

2 (5.6%)

0.7674

 hyperuricosuiria

9 (18.8%)

1 (2.8%)

0.0253*

 hypomagnesuria

24 (50.0%)

20 (44.4%)

0.6139

 Hyperphosphaturia

1 (2.1%)

0

0.3836

 LUV

24 (50.0%)

19 (52.8%)

0.8010

 UAU

17 (47.2%)

19 (52.8%)

0.1116

  1. Ccr creatinine clearance, Cua uric acid clearance, FEua fractional excretion of uric acid, LUV Low urine volume, UAU Unduly acidic urine
  2. *indicate significant difference