Table 2.
Comparison of characteristics between central and peripheral calciphylaxis patients.
| Characteristic | Total (N = 48) | Central calciphylaxis (N = 20) | Peripheral calciphylaxis (N = 28) | P-value |
|---|---|---|---|---|
| Gender | ||||
| Male | 33 (68.75%) | 13 (65%) | 20 (71.43%) | 0.636 |
| Female | 15 (31.25%) | 7 (35%) | 8 (28.57%) | |
| Age (years) | ||||
| <20 | 0 | 0 | 0 | 0.588 |
| 20–40 | 9 (18.75%) | 5 (25%) | 4 (14.29%) | |
| 40–60 | 19 (39.58%) | 7 (35%) | 12 (42.86%) | |
| ≥60 | 20 (41.67%) | 8 (40%) | 12 (42.86%) | |
| BMI(kg/m 2 ) | ||||
| <18.5 | 5 (10.42%) | 3 (15%) | 2 (7.14%) | 0.872 |
| 18.5–24.0 | 22 (45.83%) | 8 (40%) | 14 (50%) | |
| ≥24.0 | 21 (43.75%) | 9 (45%) | 12 (42.86%) | |
| Duration of dialysis (months) | 84.00 (48.00, 138.75) | 91.50 (60.00, 143.75) | 69.50 (39.00, 133.75) | 0.457 |
| History of SHPT | ||||
| SHPT | 35 (72.92%) | 15 (75%) | 20 (71.43%) | 0.784 |
| Duration of SHPT (months) | 35.00 (13.00, 72.00) | 34.00 (23.00, 72.00) | 38.00 (7.00, 67.75) | 0.881 |
| Parathyroidectomy | 15 (42.86%) | 8 (53.33%) | 7 (35%) | 0.278 |
| Postoperative hypocalcemia | 14 (93.33%) | 8 (100%) | 6 (85.71%) | 0.467 |
| Diagnosis of calciphylaxis | ||||
| More than 2 painful and non-treatable skin ulcers | 46 (95.83%) | 20 (100%) | 26 (92.86%) | 0.504 |
| Skin biopsy | 34 (70.83%) | 9 (45%) | 25 (89.29%) | 0.001 |
| Arteriole calcification on biopsy | 22 (64.71%) | 8 (88.89%) | 14 (56%) | 0.173 |
| Bone scintigraphy | 32 (66.67%) | 7 (35%) | 25 (89.29%) | <0.001 |
| Positive result of bone scintigraphy | 20 (62.5%) | 5 (71.43%) | 15 (60%) | 0.912 |