Table 5.

Serum/plasma concentrations of hormones in the hypothalamic–pituitary–somatotropic axis (HPS axis) in patients with ectopic acromegaly.

		n	Mean ± SD	Median (range)
GHRH (ng/L)		81	8,965 ± 19,547	1,273 (60.1-145,000)
GH (ng/mL)	Basal	94	54.2 ± 83.7	29.6 (1.7-488)
	OGTT Nadir	66	43.1 ± 60.6	25.4 (0.1-323)
	Maximum value in TRH test	31	178 ± 272	66.5 (6.9-1,264)
	Post GHRH test	7	33.2 ± 21.9	33.2 (17.7-487)
IGF-1*		84	2.7 ± 1.5	2.4 (1-11.73)

*expressed as patient’s IGF-1 value/ULN (upper limit of normal).