Table 2.
Calcium metabolism on serum and 24-h urinary sampling in sarcoidosis, IPF and cHP subgroups.
| Parameters | Sarcoidosis | IPF | cHP | p-value |
|---|---|---|---|---|
| Serum | ||||
| Calcium (mg/dl) [8.5–10.5 mg/dl) | 9.58 ± 0.46 | 9.17 ± 0.51 | 9.29 ± 0.33 | 0.0004 |
| Phosphate (mg/dl) [2.5–4.5 mg/dl] | 3.42 ± 0.5 | 3.35 ± 0.42 | 3.57 ± 0.64 | 0.0957 |
| Creatinine (mg/dl) [0.5–1.2 mg/dl] | 0.94 ± 0.15 | 0.98 ± 0.13 | 0.98 ± 0.08 | 0.1265 |
| Creatinine clearance (ml/min) [> 80 ml/min] | 87.1 ± 40.3 | 88.5 ± 48.3 | 84.7 ± 35.9 | 0.8278 |
| Alkaline phosphatase (U/l) [30–120 U/l] | 66.1 ± 27.5 | 65 ± 19.3 | 58.8 ± 17.7 | 0.7145 |
| 24 h-urine | ||||
| Calcium (mg/24 h) [50–250 mg/24 h] | 176.6 ± 120.1 | 111.4 ± 81.7 | 114 ± 53.4 | 0.0007 |
| Phosphate (mg/24 h) [300–800 mg/24 h] | 715.3 ± 307.4 | 758.7 ± 312.1 | 655.7 ± 312.1 | 0.1138 |
| Creatinine (mg/24 h) [800–1,200 mg/24 h] | 1,166.8 ± 506.7 | 1,219.1 ± 582.8 | 1,194.8 ± 501.4 | 0.7992 |
IPF, idiopathic pulmonary fibrosis; cHP, chronic hypersensitivity pneumonitis. Normal ranges of values are reported in square brackets. P-value refers to sarcoidosis patients vs. all others.