Patient demographic characteristics
| Characteristic | No. (%) of patients* | p value | |
|---|---|---|---|
| Classic pHPT n = 295 | nhHPT n = 38 | ||
| Age, mean ± SD, yr | 59 ± 14 | 58 ± 10 | 0.5 |
| Female sex | 239 (81.0) | 28 (73.7) | 0.3 |
| Preoperative calcium level, mean ± SD, mmol/L | 2.8 ± 0.2 | 2.7 ± 0.1 | < 0.001 |
| Preoperative PTH level, mean ± SD, pg/dL | 145 ± 61 | 53 ± 9 | < 0.001 |
| Preoperative eucalcemia | 7 (2.4) | 2 (5.3) | 0.3 |
nhHPT = normohormonal hyperparathyroidism; pHPT = primary hyperparathyroidism; PTH = parathormone; SD = standard deviation.
↵* Except where noted otherwise.