Regarding biochemical indices, as expected, mean PTH values, sCa, minimum and maximum serum calcium (sCaMin; sCaMax), albumin-corrected serum calcium, calcium/phosphate ratio (Ca/P ratio) and urinary calcium were higher in patients with primary hyperparathyroidism compared to controls, while serum phosphate was significantly lower. Here, ALB is linked to primary hyperparathyroidism.