Table 3 Positive history of nephrolithiasis vs ultrasonography
From: Nephrolithiasis in gout: prevalence and characteristics of Brazilian patients
| Positive history of nephrolithiasis | |||
|---|---|---|---|
| Yes | No | Total | |
| 20 | 103 | ||
| US with nephrolithiasis | 7 | 23 | 30 |
| US without nephrolithiasis | 13 | 80 | 93 |