Table 3 Body composition characteristics of the group and by sex and race in 2010 and 2013 and significance of differences during follow-up according to mixed models with school included as subjects
Group (N = 574) | Boys (n = 282) | Girls (n = 292) | Sex p value | White (n = 143) | Black (n = 407) | Race p value | Mixed models MSE | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2010 | 2013 | 2010 | 2013 | 2010 | 2013 | 2013 | 2010 | 2013 | 2010 | 2013 | 2013 | 2013 | |
Height (cm) | 119.76 | 135.37 | 121.3 | 136.0 | 119.9 | 136.0 | 0.588 | 123.7 | 138.0 | 119.3 | 135.3 | 0.723 | 80.9 |
Mass (kg) | 22.59 | 32.29 | 23.3 | 32.9 | 22.9 | 33.7 | 0.662 | 24.8 | 35.5 | 22.5 | 32.4 | 0.240 | 68.3 |
BMI kg/m | 15.65 | 17.39 | 15.8 | 17.5 | 15.8 | 18.0 | 0.225 | 16.1 | 18.2 | 15.7 | 17.5 | 0.073 | 13.2 |
Fat % | 15.87 | 20.33 | 16.6 | 20.3 | 16.2 | 22.0 | 0.032 | 16.9 | 21.7 | 16.2 | 21.0 | 0.008 | 61.5 |