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The lifetime prevalence of hyperparathyroidism in children and adults with XLH in the Netherlands
| Total N = 80 | Children N = 29 | Adults N = 51 | |
|---|---|---|---|
| Occurrence of hyperparathyroidism, n(%) | 50 (62.5%) | 22 (75.9%) | 28 (54.9%) |
| With normal serum calcium, n(%) | 40 (80.0%) | 15 (68.2%) | 25 (89.3%) |
| Occurrence of hyperparathyroidism > 6 months, n(%) | 11 37.9%) | 18 (35.3%) | |
| Hyperparathyroidism with hypercalcemia, n(%) | 1 (9.1%) | 7 (38.9%) | |
| Parathyroidectomy, n(%) | – | 4 (22.2%) |
