PTH and diabetes mellitus: Multivariate analysis (Table 2) confirmed that age [OR 0.981 (0.973–0.990)] and diabetes [OR 0.595 (0.445–0.795)] were negatively associated, whereas baseline ALP [OR 1.003 (1.001–1.004)] and baseline PTH > 600 pg/mL [OR 4.003 (3.055–5.325)] were positively associated with the presence of uncontrolled hyperparathyroidism at the end of the first year of therapy.