Table 7. Inter-method comparison of mean dental and chronological ages (DA-CA) by gender and age group.
| Method with mean DA-CA | Difference in mean DA-CA | 95% CI of DA-CA | Absolute difference | p value# | ||
|---|---|---|---|---|---|---|
| (years ± SD) | Years | |||||
| Females (N = 501) | Demirjian | Willems | -0.03 ± 0.80 | 0.05 to 0.16 | 0.61 | < 0.001 |
| Chaillet | -0.56 ± 0.85 | 0.48 to 0.62 | 0.62 | < 0.001 | ||
| Willems | Chaillet | 0.53 ± 0.84 | -0.53 to -0.40 | 0.65 | < 0.001 | |
| Males (N = 699) | Demirjian | Willems | -0.15 ± 0.80 | 0.09 to 0.16 | 0.56 | < 0.001 |
| Chaillet | -0.36 ± 0.75 | 0.05 to 0.14 | 0.58 | 0.012 | ||
| Willems | Chaillet | 0.21 ± 0.75 | -0.16 to 0.44 | 0.56 | < 0.001 | |
| Total (N = 1200) | Demirjian | Willems | -0.10 ± 0.80 | 0.03 to 0.26 | 0.58 | < 0.001 |
| Chaillet | -0.44 ± 0.83 | -0.20 to 0.54 | 0.60 | < 0.001 | ||
| Willems | Chaillet | -0.34 ± 0.82 | -0.34 to -0.19 | 0.62 | < 0.001 | |
#Wilcoxon Signed Rank test: p ≤ 0.05 = significant