Table 2. Composition-based distribution of urinary stones (pure, two-component, and three-component).
Distribution of urinary stones as pure, two-component, and multiple-component formations.
| Stone composition | Number (n) | Percentage (%) | |
| Pure stone | |||
| Ammonium hydrogen urate | 22 | 1.79 | |
| Cystine | 17 | 1.38 | |
| Uric acid | 15 | 1.21 | |
| Calcium oxalate (monohydrate) | 11 | 0.89 | |
| Carbonate apatite | 4 | 0.32 | |
| Struvite | 1 | 0.08 | |
| Xanthine | 1 | 0.08 | |
| Total | 71 | 5.77 | |
| Two-component stone | |||
| Calcium oxalate (MH)+ Calcium oxalate (DH) | 773 | 62.8 | |
| Calcium oxalate (DH)+ Carbonate apatite | 234 | 19 | |
| Calcium oxalate (MH)+ +Xanthine | 15 | 1.21 | |
| Calcium oxalate (MH)+ Uric acid | 12 | 0.97 | |
| Calcium oxalate (MH)+ Carbonate apatite | 10 | 0.81 | |
| Calcium oxalate (DH)+ Cystine | 10 | 0.81 | |
| Carbonate Apatite +Struvite | 5 | 0.4 | |
| Calcium oxalate (MH) + Struvite | 2 | 0.16 | |
| Calcium oxalate (MH)+ Cystine | 1 | 0.08 | |
| Ammonium hydrogen urate + Uric acid | 1 | 0.08 | |
| Calcium oxalate (DH) + Struvite | 1 | 0.08 | |
| Calcium oxalate (MH) + Ammonium hydrogen urate | 1 | 0.08 | |
| Total | 1065 | 86.5 | |
| Three-component stone | |||
| Calcium oxalate (MH) + Calcium oxalate (DH) + Carbonate apatite | 73 | 5.93 | |
| Calcium oxalate (MH) + Carbonate apatite + Struvite | 19 | 1.54 | |
| Ammonium hydrogen urate + Uric acid + Cystine | 1 | 0.08 | |
| Calcium oxalate (DH)+ Struvite + Uric acid | 1 | 0.08 | |
| Ammonium hydrogen urate + Calcium hydrogen phosphate + Magnesium hydrogen phosphate | 1 | 0.08 | |
| Total | 95 | 7.71 | |