Table 2. Anthropometric data in boys with AMY1 copy number above or below the median.

	CNV <8	CNV≥8	P
N	150	204
Prepubertal/pubertal	137/13	195/9	0.12
Age (years)	8.6±1.4	8.4±1.4	0.15
Height (cm)	133.1±10.5	131.1±9.1	0.06
Weight (Kg)	35.9±12.1	32.7±8.7	0.008
BMI (Kg/m2)	19.8±4.2	18.7±3.3	0.01
BMI z-score	0.62±1.07	0.38±1.08	0.04
Waist circumference (cm)	64.8±10.3	62.1±8.3	0.01

Data are means ±SD

BMI: body mass index

CNV: copy number variations