Table 2.

Baseline characteristics of included patients with pituitary neuroendocrine tumours (PitNETs) (N = 60).

Variables			Frequency or Mean ± SD
Age (years)			54 ± 15
Women			33/60 (55%)
Maximum tumour diameter (mm)			22.51 ± 10.92
PitNET subtypes
	ST tumours		15/60 (25%)
	fCT tumours		8/60 (13.33%)
	sCT tumours		8/60 (13.33%)
	GT tumours		29/60 (48.33%)
Invasiveness		Knosp grade	59/60 *
	Non-invasive	Grades I–II	28/59 (47.5%)
	Invasive	Grades III–IV	31/59 (52.5%)
Proliferation		Ki-67	59/60 *
	Non-proliferative	<2.59	42/59 (71.2%)
	Proliferative	≥2.59	17/59 (28.8%)
Grades			59/60 *
	Grade 1	Non-invasive (regardless Ki-67 index)	28/59 (47.5%)
	Grade 2	Invasive and non-proliferative (Ki-67 < 2.59)	21/59 (35.6%)
	Grade 3	Invasive and proliferative (Ki-67 ≥ 2.59)	10/59 (16.9%)

SD: standard deviation; ST: functioning somatotroph; fCT: functioning corticotroph; sCT: silent corticotroph; GT: gonadotroph * One case missed.