Table 5 Comparison between chronological age and dental age estimated by Cameriere method in females (n = 70).
From: Age estimation using dental and hand-wrist radiography among a sample of Egyptian children
Age group | Chronological age (years) | Estimated skeletal age (years) | Mean difference (years) | P value# | Mean absolute error (MAE) | ||
|---|---|---|---|---|---|---|---|
Mean ± SD | Median (years) | Mean ± SD | Median (years) | ||||
8 | 8.58 ± 0.29 | 8.60 | 8.62 ± 0.1.19 | 8.00 | + 0.04 ± 1.18 | 0.807 | 0.87 |
9 | 9.33 ± 0.26 | 9.30 | 10.50 ± 1.35 | 10.00 | + 1.17 ± 1.46 | 0.008* | 1.17 |
10 | 10.12 ± 0.05 | 10.1 | 10.50 ± 0.57 | 10.5 | + 0.38 ± 0.55 | 0.461 | 0.47 |
11 | 11.47 ± 0.26 | 11.5 | 12.38 ± 1.40 | 13 | + 0.91 ± 1.36 | 0.161 | 1.47 |
12 | 12.60 ± 0.39 | 12.8 | 12.67 ± 0.51 | 13 | + 0.07 ± 0.79 | 0.596 | 0.63 |
13 | 13.17 ± 0.19 | 13.15 | 13.17 ± 0.38 | 13 | + 0.00 ± 0.43 | 0.673 | 0.27 |
14 | 14.76 ± 0.15 | 14.8 | 16.67 ± 2.30 | 18 | + 1.9 ± 2.43 | 0.285 | 2.50 |
15 | 15.13 ± 0.05 | 15.1 | 13.00 ± 0.89 | 13 | − 2.13 ± 0.87 | 0.027* | 2.13 |
16 | 0 | 0 | 0 | 0 | 0 | 0 | − |
17 | 17.37 ± 0.39 | 17.2 | 16.75 ± 1.16 | 17 | − 0.62 ± 1.10 | 0.204 | 0.90 |
Total | 12.07 ± 2.89 | 11.95 | 12.11 ± 2.73 | 13.0 | + 0.04 ± 0.86 | 0.354 | 1.02 |
