Ninety-four of 332 patients (28.3%) were continuously prescribed with calcium/vitamin D supplements: 14 had PTH deficiency and hypocalcemia and 14 had normal/elevated PTH levels with hypocalcemia, 59 had PTH values below the normal range and normo- or hypercalcemia and 7 had normal or elevated PTH levels with normocalcemia. Here, PTH is linked to Hypocalcemia.