Table 1 Comparison of physical characteristics with statistical data for sex differences analyzed by t-test
Boys | Girls | Sex | |||
|---|---|---|---|---|---|
Mean | SD | Mean | SD | p | |
n | 69 | 71 | |||
Age, months | 63.7 | 11.2 | 65.0 | 12.3 | 0.509 |
Height, cm | 108.0 | 7.9 | 108.3 | 8.3 | 0.816 |
Weight, kg | 18.4 | 3.9 | 18.3 | 3.3 | 0.942 |
Body mass index, kg/m2 | 15.6 | 1.7 | 15.5 | 1.2 | 0.748 |
Fat-free mass, kg | 14.8 | 2.8 | 14.0 | 2.6 | 0.069 |
Fat mass, kg | 3.6 | 1.7 | 4.4 | 1.3 | 0.003* |
% Fat mass, % | 19.1 | 5.2 | 23.7 | 5.1 | < 0.001* |
Fat-free mass index, kg/m2 | 12.6 | 1.1 | 11.8 | 0.8 | < 0.001* |
Fat mass index, kg/m2 | 3.0 | 1.1 | 3.7 | 1.0 | < 0.001* |