Table 4: Mean and standard deviation of DXA dependent variables by age group.

Age (years)FMBMCLST

8 ( )6.1 ± 4.41.2 ± 0.222.0 ± 2.7
9 ( )6.6 ± 4.21.2 ± 0.223.3 ± 3.0
10 ( )7.0 ± 4.51.3 ± 0.224.5 ± 3.3
11 ( )7.8 ± 6.21.5 ± 0.3*26.5 ± 3.8*
12 ( )8.4 ± 6.51.8 ± 0.332.3 ± 5.3
13 ( )10.9 ± 9.52.0 ± 0.4*36.2 ± 6.3*
14 ( )10.3 ± 9.42.3 ± 0.5*42.4 ± 7.1*
15 ( )11.1 ± 8.12.7 ± 0.548.4 ± 6.8
16 ( )10.3 ± 5.53.0 ± 0.450.6 ± 5.0
17 ( )11.9 ± 8.73.0 ± 0.452.0 ± 6.0
18 ( )10.1 ± 8.73.1 ± 0.853.8 ± 5.9

DXA: dual-energy X-ray absorptiometry; FM: fat mass; BMC: bone mineral content; LST: lean soft tissue. *Subsequent age significantly different at .