| Baseline | Follow-up | Baseline and follow-up | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean | SD | P for ANOVA | P for ANCOVA | P for Trend | Mean | SD | P for ANOVA | P for ANCOVA | P for Trend | P for repeated measures ANOVA | P for repeated measures ANCOVA | |||
Boys, N = 121 | TBLH BMC (g) | |||||||||||||
 | IGF-I Q1 | 567 | 97 | < 0.001 | nsa | nsa | 963 | 179 | < 0.001 | 0.013a | nsa | < 0.001a | 0.044a | |
 | IGF-I Q2 | 607 | 88 | 1110 | 195 | |||||||||
 | IGF-I Q3 | 654 | 139 | 1167 | 259 | |||||||||
 | IGF-I Q4 | 746 | 159 | 1333 | 222 | |||||||||
TBLH aBMD (g/cm2) | ||||||||||||||
 | IGF-I Q1 | 0.594 | 0.038 | 0.003 | nsb | nsb | 0.692 | 0.059 | < 0.001 | 0.011b | 0.007b | < 0.001b | 0.004b | |
 | IGF-I Q2 | 0.603 | 0.030 | 0.740 | 0.072 | |||||||||
 | IGF-I Q3 | 0.607 | 0.038 | 0.739 | 0.072 | |||||||||
 | IGF-I Q4 | 0.630 | 0.046 | 0.786 | 0.066 | |||||||||
TB BMAD (g/cm3) | ||||||||||||||
 | IGF-I Q1 | 0.085 | 0.006 | < 0.001 | nsb | nsb | 0.076 | 0.005 | 0.039 | nsb | nsb | < 0.001b | nsb | |
 | IGF-I Q2 | 0.083 | 0.006 | 0.077 | 0.004 | |||||||||
 | IGF-I Q3 | 0.080 | 0.008 | 0.074 | 0.004 | |||||||||
 | IGF-I Q4 | 0.077 | 0.008 | 0.075 | 0.004 | |||||||||
Girls, N = 133 | TBLH BMC (g) | |||||||||||||
 | IGF-I Q1 | 562 | 113 | < 0.001 | nsa | nsa | 918 | 156 | < 0.001 | nsa | nsa | < 0.001a | nsa | |
 | IGF-I Q2 | 692 | 124 | 1042 | 159 | |||||||||
 | IGF-I Q3 | 738 | 144 | 1090 | 165 | |||||||||
 | IGF-I Q4 | 808 | 158 | 1125 | 176 | |||||||||
TBLH aBMD (g/cm2) | ||||||||||||||
 | IGF-I Q1 | 0.586 | 0.039 | < 0.001 | nsb | nsb | 0.679 | 0.053 | < 0.001 | nsb | nsb | <0.001b | nsb | |
 | IGF-I Q2 | 0.625 | 0.041 | 0.718 | 0.063 | |||||||||
 | IGF-I Q3 | 0.634 | 0.043 | 0.734 | 0.056 | |||||||||
 | IGF-I Q4 | 0.653 | 0.050 | 0.749 | 0.057 | |||||||||
TB BMAD (g/cm3) | ||||||||||||||
 | IGF-I Q1 | 0.083 | 0.006 | < 0.001 | nsb | nsb | 0.077 | 0.005 | nsb | 0.036b | 0.006b | nsb | nsb | |
 | IGF-I Q2 | 0.080 | 0.005 | 0.078 | 0.004 | |||||||||
 | IGF-I Q3 | 0.078 | 0.006 | 0.078 | 0.006 | |||||||||
 | IGF-I Q4 | 0.077 | 0.005 | 0.079 | 0.004 |