Mean preoperative calcium and parathormone levels in patients with normohormonal hyperparathyroidism and primary hyperparathyroidism at the 2 study centres
| Group; variable | Centre; no. (%) of patients* | |
|---|---|---|
| Calgary n = 62 | Miami n = 271 | |
| Classic pHPT (n = 295) | 47 (75.8) | 248 (91.5) |
| Preoperative calcium level, mean ± SD, mmol/L | 2.8 ± 0.2 | 2.8 ± 0.2 |
| Preoperative PTH level, mean ± SD, pg/dL | 113 ± 50 | 151 ± 60 |
| nhHPT (n = 38) | 15 (24.2) | 23 (8.5) |
| Preoperative calcium level, mean ± SD, mmol/L | 2.6 ± 0.1 | 2.7 ± 0.1 |
| Preoperative PTH level, mean ± SD, pg/dL | 52 ± 10 | 54 ± 9 |
nhHPT = normohormonal hyperparathyroidism; pHPT = primary hyperparathyroidism;
PTH = parathormone; SD = standard deviation.
↵* Except where noted otherwise.