Table 6 General and sex results of the comparison of chronological age with each dental method. The Wilcoxon test for paired data was applied
Method | n | CA | DA of the method | p-value | CA-DA | Diff.SD | Trend | ||
|---|---|---|---|---|---|---|---|---|---|
mean | SD | mean | SD | ||||||
Willems method for boys | 302 | 8.71 | 1.88 | 8.88 | 1.93 | 0.001 | -0.17 | 0.88 | O |
Willems method for girls | 302 | 8.84 | 2.00 | 9.19 | 2.04 | 0.000 | -0.35 | 0.93 | O |
Willems method | 604 | 8.77 | 1.94 | 9.04 | 1.99 | 0.000 | -0.26 | 0.91 | O |
Demirjian method for boys | 302 | 8.71 | 1.88 | 9.44 | 2.05 | 0.000 | -0.73 | 0.94 | O |
Demirjian method for girls | 302 | 8.84 | 2.00 | 9.52 | 2.11 | 0.000 | -0.68 | 0.95 | O |
Demirjian method | 604 | 8.77 | 1.94 | 9.48 | 2.08 | 0.000 | -0.70 | 0.95 | O |
Nolla method for boys | 302 | 8.71 | 1.88 | 7.88 | 1.80 | 0.000 | 0.82 | 0.98 | U |
Nolla method for girls | 302 | 8.84 | 2.00 | 8.40 | 1.81 | 0.000 | 0.44 | 0.93 | U |
Nolla method | 604 | 8.77 | 1.94 | 8.14 | 1.82 | 0.000 | 0.63 | 0.97 | U |