Table 2. Patient and stone characteristics according to stone composition.
| n | Male:Female | Age (year) |
Stone length (mm) | NCCT values (HU) | ||||
|---|---|---|---|---|---|---|---|---|
| Min | Max | MSD | SHI | |||||
| CaOx | ||||||||
| MH 100% | 51 | 34:17 | 57.06±13.99 | 8.82±3.76 | 151.25±113.36 | 1187.90±379.33 | 716.06±297.52 | 295.27±107.86 |
| MH≥80% | 59 | 29:30 | 53.80±15.22 | 10.91±6.07 | 174.34±89.95 | 1248.81±402.86 | 768.47±287.83 | 298.14±109.92 |
| MH<80% | 10 | 6:4 | 53.10±14.42 | 10.04±4.44 | 146.70±133.89 | 937.80±417.17 | 557.91±273.49 | 225.91±122.36 |
| MH+DH | 20 | 16:4 | 37.15±16.98 | 7.58±4.00 | 175.05±81.46 | 889.55±380.79 | 535.72±267.20 | 205.69±91.36 |
| Carbonate apatite | 23 | 14:9 | 55.57±14.72 | 18.62±10.80 | 162.13±83.04 | 1182.78±396.46 | 788.90±299.48 | 240.42±92.05 |
| Struvite | ||||||||
| ≥80% | 4 | 1:3 | 53.75±7.97 | 18.50±19.92 | 193.50±123.69 | 1067.50±764.64 | 656.62±338.68 | 235.08±253.03 |
| <80% | 6 | 3:3 | 57.33±14.94 | 24.17±14.75 | 306.50±130.58 | 1342.50±602.93 | 971.17±425.46 | 244.07±123.77 |
| Uric acid 100% | 41 | 11:30 | 62.05±12.61 | 18.05±11.08 | 167.83±97.02 | 676.93±348.89 | 454.68±177.80 | 115.82±96.31 |
Data are mean±standard deviation or number.
CaOx: calcium oxalate; MH: monohydrate; DH: dehydrate; NCCT: noncontrast computed tomography; Min: minimum; Max: maximum; MSD: mean stone density; SHI: stone heterogeneity index