Distribution of stone type analyzed during calendar year 2010 (n=43,545)
| Stone Type | Number | Percent |
|---|---|---|
| Calcium oxalate | 29,319 | 67.3 |
| Apatite | 7000 | 16.1 |
| Uric acid | 3611 | 8.3 |
| Struvite | 1318 | 3.0 |
| Brushite | 374 | 0.9 |
| Cystine | 151 | 0.35 |
| Ammonium urate | 105 | 0.20 |
| Artifact | 1393 | 3.2 |
| Other | 171 | 0.4 |
| Drug | 60 | 0.1 |
| Sodium/potassium urate | 42 | 0.1 |
| Dihydroxyadenine | 1 | 0.002 |
Only the first stone submitted per individual was included.