Table 3.
| a Nanoindentation vs. Raman metrics for skeletally mature young (4 or 5 months) and old (19 months) age groups | |||
|---|---|---|---|
| Dependent class (Discretized) |
Age (months) |
Classification Accuracy |
Independent variables used in the top projection |
| Modulus |
4 or 5 19 |
79% 56% |
MMR, Crosslinking, C/P, Crystallinity MMR, Crystallinity, Crosslinking, C/P |
| Hardness |
4 or 5 19 |
72% 87% |
MMR, Crosslinking, Exercise MMR, Crystallinity, Crosslinking, Exercise |
| Plasticity index |
4 or 5 19 |
86% 75% |
C/P, Crosslinking, MMR, Exercise Crystallinity, MMR, C/P, Exercise |
| Creep displacement |
4 or 5 19 |
76% 65% |
Crosslinking, MMR, Exercise Crosslinking, MMR, Exercise |
| Creep modulus parallel |
4 or 5 19 |
84% 65% |
MMR, Crystallinity, Crosslinking, Exercise Crosslinking, MMR, Exercise |
| Creep viscosity parallel |
4 or 5 19 |
84% 65% |
MMR, Crystallinity, Crosslinking, Exercise Crosslinking, MMR, Exercise |
| Creep viscosity series |
4 or 5 19 |
75% 65% |
MMR, Crystallinity, Crosslinking, Exercise Crosslinking, MMR, Exercise |
| b Raman vs. nanoindentation metrics for skeletally mature young (4 or 5 months) and old (19 months) age groups | |||
|---|---|---|---|
| Dependent class (Discretized) |
Age (months) |
Classification Accuracy |
Independent variables used in the top projection |
| Carbonate/Phosphate |
4 or 5 19 |
86% 76% |
Creep modulus parallel, Hardness, Modulus, Creep viscosity parallel Hardness, Modulus Creep viscosity parallel, Creep modulus parallel |
| Crystallinity |
4 or 5 19 |
69% 74% |
Creep displacement, Hardness, Creep viscosity parallel, Modulus Creep modulus parallel, Plasticity index, Hardness, Exercise |
| MMR |
4 or 5 19 |
88% 83% |
Modulus, Hardness, Creep viscosity parallel, Creep viscosity series Hardness, Modulus, Plasticity index, Creep viscosity series |
| Crosslinking |
4 or 5 19 |
78% 90% |
Modulus, Creep viscosity series, Plasticity index, Creep modulus parallel Creep modulus parallel, Creep displacement, Hardness, Exercise |