Table 3.
Mean and (SD, coefficient of variation %) for each parameter (osteonal and interstitial separated).
| Osteonal | Interstitial | Interaction Category/Region | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Juvenile | Adult | p-values | Juvenile | Adult | p-values | Sense of interaction (Adult – Juvenile) (+/−) | p-values | ||
| E*(GPa) | 24.40 (1.93; 7.9%) | 26.09 (1.83; 7.0%) | 0.036 | 25.80 (1.93; 7.5%) | 29.63 (1.11; 3.7%) | <0.0001 | − | <0.001 | |
| H/E* | 0.0426 (0.0021; 4.9%) | 0.0409 (0.0023; 5.6%) | 0.0201 | 0.0429 (0.0019; 4.4%) | 0.0418 (0.0026; 6.2%) | ns | 0.087 (ns) | ||
| Wplast/ Wtot | 0.769 (0.007; 0.91%) | 0.774 (0.009; 1.2%) | ns | 0.767 (0.008; 1.0%) | 0.767 (0.007; 0.9%) | ns | 0.105 (ns) | ||
| Crystallinity (cm) | 0.0360 (0.0024; 6.7%) | 0.0379 (0.0011; 2.9%) | 0.0144 | 0.0370 (0.0016; 4.3%) | 0.0388 (0.0011; 2.8%) | 0.003 | 0.619 (ns) | ||
| Carbonation | 0.0066 (0.0008; 12.1%) | 0.0078 (0.0005; 6.4%) | 0.0002 | 0.0063 (0.0005; 7.9%) | 0.0073 (0.0003; 4.1%) | <0.0001 | 0.51 (ns) | ||
| Mineral/ Matrix | 4.31 (0.44; 10.2%) | 4.313 (0.345; 8.0%) | ns | 4.819 (0.36; 7.5%) | 5.141 (0.284; 5.5%) | 0.018 | − | 0.019 | |
| Mineral maturity | 1.773 (0.235; 13.3%) | 1.717 (0.271; 15.8%) | ns | 1.954 (0.195; 10.0%) | 1.813 (0.276; 15.2%) | ns | 0.214 (ns) | ||
| Collagen maturity | 3.769 (0.422; 11.2%) | 3.984 (0.391; 9.8%) | ns | 4.516 (0.483; 10.7%) | 4.305 (0.330; 7.7%) | ns | + | 0.016 | |
| DMB (g/cm3) | 1.027 (0.058; 5.6%) | 1.079 (0.037; 3.4%) | 0.0057 | 1.191 (0.047; 3.9%) | 1.260 (0.029; 2.3%) | <0.0001 | 0.145 (ns) | ||
Difference Adult/Juvenile is indicated for each region, using a mixed model. The significance is also obtained (p) for each region, using a Mann-Whitney unpaired test. Interaction between Category and Region is obtained using a mixed model. The sense of the interaction (+/−) is indicated when the model is significantly relevant (p-values for interaction).