Table 1.
Slope, intercept, root mean square error (RMSE), and RMSE as a percentage of the maximum absolute measured strain, for the four density-elasticity relationships.
| Eq (i) | Eq (ii) | Eq (iii) | Eq (iv) |
Eq (iv) excluding subject with OA |
|
|---|---|---|---|---|---|
| slope | 0.193a (95% CI: 0.151 0.236) |
0.164a (95% CI: 0.12 0.209) |
0.758a (95% CI: 0.649 0.866) |
0.809a (95% CI: 0.694 0.925) |
0.984ns (95% CI: 0.874 1.094) |
| Intercept | −46.1ns (95% CI: −233.1 140.9) |
−17.7ns (95% CI: −234 198.6) |
1.2ns (95% CI: −132 134.5) |
−7.2ns (95% CI: −139.5 125.1) |
51.1ns (95% CI: −43.4 145.5) |
| RMSE (ue) | 3557.4 | 4117.2 | 472.3 | 424.3 | 219.6 |
| RMSE (%) | 136.8 | 158.4 | 18.2 | 16.3 | 11.1 |
a
Significantly different,
ns
not significantly different from 1 (slope) or 0 (intercept)