Biochemical parameters at presentation
| UPN | Gestation | Corrected serum calcium (mmol/l) | Serum phosphate (mmol/l) | Alkaline phosphatase (units/l) | Serum parathormone (pg/ml) | Serum 25OH vitamin D (mmol/l) |
| 1 | 38/40 | 1.3 | 1.79 | 345 | 28.7 | 39 |
| 3B | Full term | 1.43 | 1.56 | 206 | 3.2 | 36.3 |
| 4 | 38/40 | 1.0 | NA | NA | 210 | NT |
| 5A | 38/40 | 1.41 | 1.3 | 101 | NT | NT |
| 5B | 38/40 | 1.68 | 0.96 | 672 | 42.9 | 20 |
| 6 | Full term | 1.40 | 1.52 | 216 | 105 | 13.9 |
Results are no longer available in patient UPN 2, although hypocalcaemic convulsions were well documented. Blood tests were not performed in patient 3A.
UPN, unique patient number; NT, not tested; NA, not available.