Table 2.

GHRP-2, growth hormone-releasing peptide-2; GH, growth hormone; CRH, corticotropin-releasing hormone; ACTH, adrenocorticotropic hormone; TRH, thyrotropin-releasing hormone; TSH, thyroid-stimulating hormone; PRL, prolactin; LHRH, luteinizing hormone-releasing hormone; LH, luteinizing hormone; FSH, follicle-stimulating hormone. Percentage in parentheses represents the proportion of cases for each group. *Statistically significant at p < 0.05.

			Early elderly	Late elderly	p Value
GHRP-2 test, cases
GH	preoperative	normal	28 (40.0%)	7 (24.1%)	0.204
GH	preoperative	deficiency	42 (60.0%)	22 (75.9%)
GH	postoperative	normal	31 (44.3%)	9 (31.0%)	0.318
GH	postoperative	deficiency	39 (55.7%)	20 (69.0%)
CRH test, cases
ACTH	preoperative	normal	35 (50.0%)	19 (65.5%)	0.234
ACTH	preoperative	deficiency	35 (50.0%)	10 (34.5%)
ACTH	postoperative	normal	58 (82.9%)	26 (89.7%)	0.543
ACTH	postoperative	deficiency	12 (17.1%)	3 (10.3%)
Cortisol	preoperative	normal	36 (51.4%)	8 (27.6%)	0.051
Cortisol	preoperative	deficiency	34 (48.6%)	21 (72.4%)
Cortisol	postoperative	normal	32 (45.7%)	8 (27.6%)	0.148
Cortisol	postoperative	deficiency	38 (54.3%)	21 (72.4%)
TRH test, cases
TSH	preoperative	normal	67 (95.7%)	23 (79.3%)	0.017*
TSH	preoperative	deficiency	3 (4.3%)	6 (20.7%)
TSH	postoperative	normal	47 (67.1%)	13 (44.8%)	0.045*
TSH	postoperative	deficiency	23 (32.9%)	16 (55.2%)
PRL	preoperative	normal	46 (65.7%)	18 (62.1%)	0.909
PRL	preoperative	deficiency	24 (34.3%)	11 (37.9%)
PRL	postoperative	normal	57 (81.4%)	23 (79.3%)	1.000
PRL	postoperative	deficiency	13 (18.6%)	6 (20.7%)
LHRH test, cases
LH	preoperative	normal	17 (24.3%)	6 (20.7%)	0.901
LH	preoperative	deficiency	53 (75.7%)	23 (79.3%)
LH	postoperative	normal	17 (24.3%)	10 (34.5%)	0.430
LH	postoperative	deficiency	53 (75.7%)	19 (65.5%)
FSH	preoperative	normal	31 (44.3%)	14 (48.3%)	0.888
FSH	preoperative	deficiency	39 (55.7%)	15 (51.7%)
FSH	postoperative	normal	26 (37.1%)	12 (41.4%)	0.867
FSH	postoperative	deficiency	44 (62.9%)	17 (58.6%)