Table 2. Age estimation results obtained based on the mandible and femur separately, and their corresponding fusion results using both male and female samples.
| Mandible | Femur | Late fusion | Early fusion | Middle fusion | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MAE (year) | CCC | MAE (year) | CCC | MAE (year) | CCC | MAE (year) | CCC | MAE (year) | CCC | |
| Fold 1 | 8.04 | 0.54 | 6.1 | 0.76 | 5.74 | 0.74 | 6.22 | 0.78 | 5.65 | 0.75 |
| Fold 2 | 6.78 | 0.69 | 5.53 | 0.77 | 5.46 | 0.79 | 5.7 | 0.77 | 5.09 | 0.76 |
| Fold 3 | 6.31 | 0.72 | 5.94 | 0.76 | 5.22 | 0.79 | 5.08 | 0.8 | 5.14 | 0.82 |
| Fold 4 | 6.74 | 0.64 | 5.01 | 0.84 | 4.93 | 0.81 | 5.18 | 0.8 | 4.43 | 0.84 |
| Fold 5 | 7.34 | 0.59 | 5.51 | 0.8 | 5.39 | 0.76 | 5.48 | 0.79 | 5.19 | 0.82 |
| Fold 6 | 6.74 | 0.67 | 5.44 | 0.8 | 5.07 | 0.81 | 5.83 | 0.76 | 4.81 | 0.84 |
| Fold 7 | 6.74 | 0.65 | 6.03 | 0.77 | 5.52 | 0.78 | 5.48 | 0.8 | 5.25 | 0.81 |
| Fold 8 | 7.14 | 0.65 | 5.48 | 0.79 | 5.53 | 0.79 | 5.19 | 0.83 | 5.11 | 0.81 |
| Fold 9 | 7.19 | 0.63 | 6.16 | 0.71 | 5.57 | 0.73 | 5.14 | 0.82 | 5.35 | 0.8 |
| Fold 10 | 7.65 | 0.58 | 6.2 | 0.75 | 5.63 | 0.74 | 5.27 | 0.8 | 5.47 | 0.78 |
| Means ±std | 7.07 ±0.51 | 0.64 ±0.05 | 5.74 ±0.04 | 0.78 ±0.04 | 5.41 ±0.26 | 0.78 ±0.03 | 5.46 ±0.37 | 0.8 ±0.02 | 5.15 ±0.34 | 0.8 ±0.03 |
When estimated with the first architecture, both male and female samples produced a final MAE of 7.07 years; when using the jaw and femur as age indicators, a final MAE of 5.74 years was achieved.