Evaluation of growth hormone provocative tests in Egyptian children with growth hormone-related short stature

Table 1 Demographic data of the studied cases

Variables	Total cases, n = 50	Patients’ subgroups		P value
		GHD group (n = 24)	ISS (n = 26)
Age/years				0.324
mean ± SD	10.3 ± 2.91	9.83 ± 3.37	10.73 ± 2.39
Sex, n (%)				0.616
Male	17 (34)	9 (37.5)	8 (30.8)
Females	33 (66)	15 (62.5)	18 (69.2)
Weight/kg				0.099
mean ± SD	26.67 ± 9.72	25.08 ± 9.8	28.13 ± 9.6
Weight Z score				0.207
Median (IQR)	-1.7 (-2.8 to -1.29)	-1.835 (-3.2 to -1.35)	-1.55 (-2.02 to -1.26)
Height/cm				0.180
mean ± SD	121.86 ± 14.79	118.46 ± 16.94	125 ± 11.98
Height Z score				0.129
mean ± SD	-2.77 ± 0.61	-2.88 ± 0.59	-2.68 ± 0.63
BMI				0.831
mean ± SD	17.37 ± 3.73	17.49 ± 3.86	17.26 ± 3.68
BMI Z score				0.977
Median (IQR)	-0.16 (-1.12 to 0.29)	-0.12 (-1.4 to 0.25)	-0.235 (-0.8 to 0.39)
Mid parenteral height				0.846
mean ± SD	165.93 ± 7.51	165.77 ± 7.31	166.08 ± 7.83
IGF (ng/mL)				0.662
mean ± SD	169.77 ± 38.39	165.73 ± 39.71	173.49 ± 37.52
IGF Z score				0.727
Median (IQR)	-0.87 (-1.4 to 0.53)	0.53 (-0.39 to 1.44)	0.9 (0.46 to 1.54)
Chronological age - bone age/years				0.537
mean ± SD	2.49 ± 0.88	2.54 ± 0.59	2.44 ± 1.1

IQR: Interquartile range; BMI: Body mass index; IGF: Insulin-like growth factor; GHD: Growth hormone deficiency; ISS: Idiopathic short stature.