Table 5 Comparison between patients with and without nephrolithiasis (laboratory and ultrasonography characteristics)
From: Nephrolithiasis in gout: prevalence and characteristics of Brazilian patients
Nephrolithiasis (N = 43) | Without Nephrolithiasis (N = 80) | P Value | |
|---|---|---|---|
Serum creatinine (mg/dL) | 1.26 ± 0.42 | 1.38 ± 0.61 | 0.507 |
Serum urea (mg/dL) | 41.7 ± 22.2 | 45.4 ± 26.8 | 0.387 |
eGFR – CKD EPI (mL/min/1.73 m2) | 68.0 ± 22.3 | 61.6 ± 21.1 | 0.116 |
Serum uric acid levels (mg/dL) | 7.20 ± 2.11 | 7.09 ± 1.87 | 0.785 |
Uric acid clearance (mL/min) | 5.25 ± 3.38 | 5.61 ± 4.18 | 0.518 |
Uric acid clearance < 6 mL/min | 32 (74.4%) | 53 (67.1%) | 0.400 |
Urinary uric acid excretion (g/24 h) | 0.55 ± 0.33 | 0.52 ± 0.28 | 0.879 |
Serum glucose (mg/dL) | 111.3 ± 36.1 | 102.6 ± 19.8 | 0.256 |
Serum total cholesterol (mg/dL) | 207.1 ± 57.7 | 204.5 ± 44.8 | 0.924 |
Serum triglycerides (mg/dL) | 307.8 ± 639.3 | 190.4 ± 156.3 | 0.627 |
Urinalysis | |||
pH | 5.87 ± 0.80 | 5.75 ± 0.85 | 0.383 |
Pyuria (> 10 leukocytes/HPF) | 2 (4.7%) | 4 (5.0%) | 1.000 |
Hematuria (> 3 erythrocytes/HPF) | 7 (16.3%) | 5 (6.2%) | 0.074 |
Significant proteinuria | 1 (2.3%) | 4 (5.0%) | 0.657 |
Ultrasonography | |||
Cysts | 20 (46.5%) | 26 (32.5%) | 0.126 |
CKD appearance | 3 (7.0%) | 7 (8.8%) | 1.000 |