Study outcomes
postoperative hypocalcaemia
SECONDARY
The primary outcome was the rate of low (below the normal range) plasma PTH level on the first day after surgery.There were nine secondary outcomes: postoperative medication with vitamin D at discharge, defined as medication with active vitamin D—dihydrotachysterol (Anatomical Therapeutic Chemical code (ATC) A11CC02), alfacalcidol (ATC A11CC03), or calcitriol (ATC A11CC04)—owing to postoperative hypocalcaemia, registered in the Eurocrine