Table 1. General characteristics of the study population.

	All	Boys	Girls	P value
N	744	354	390
Prepubertal/pubertal	642/102	332/22	310/80	<0.001
Age (years)	8.4±1.4	8.5±1.4	8.3±1.4	0.08
Height (cm)	131.3±10.2	131.9±9.8	130.7±10.5	0.09
Weight (Kg)	33.7±10.6	34.1±10.4	33.5±10.7	0.43
BMI (Kg/m2)	19.2±3.8	19.2±3.8	19.2±3.9	0.97
BMI z-score	0.49±1.07	0.48±1.08	0.50±1.07	0.85
Waist circumference (cm)	62.4±9.1	63.3±9.3	61.6±8.9	0.01
AMY1 copy number	8.3 (1.8–27)	8.2 (2.4–21.9)	8.5 (1.8–27.2)	0.32

Data are means ±SD or median (range)

BMI = body mass index