Central hypothyroidism was more common in patients with adrenocorticotropic hormone-secreting pituitary adenomas (aOR (adjusted odds ratio) 1.85), Rathke's cleft cysts (aOR 2.34), and craniopharyngiomas (aOR 2.58) (all <i>p</i> < 0.05) than in those with nonfunctioning pituitary adenomas.