In the Moli-sani study data set, men and women had different prevalence of hyperphosphatemia (1.2% and 7.1%, p < 0.001) but similar prevalence of high serum PTH (1.2 and 1.9%, p = 0.386), of low serum 1,25(OH)2 (3.1% and 2.6%, p = 0.638), and of hypocalcemia (1.0% and 0.6%, p = 0.517). Here, PTH is linked to hyperphosphatemia.