Table 1.

Clinical and anthropomorphic characteristics of the subjects (N=86)^†

Parameter	Mean ±SD
Age (yrs)	13.8 ± 3.4
Female (%)	66 %
Height Z-score	− 1.0 ± 1.4
Weight Z-score	0.02 ± 1.8
BMI (mg/cm2)	21.9 ± 4.7
BMI Z-score	0.5 ± 1.2
Skeletal delay (yrs)†	− 0.9 ± 1.7
PA spine BMD (g/cm2)	0.667 ± 0.153
PA spine BMD Z-score	−1.1 ± 1.2

^†N=75 for skeletal delay, defined as bone age minus chronologic age.