| Anatomical forms (cleft) | Average ages (in years) | General Average | ||
| Male | Female | |||
| Clefts lip | Unilateral | 6.33 | 8 | 7.17 |
| Bilateral | 6.92 | 7.83 | 7 | |
| Clefts palate | Unilateral | 6.87 | 7 | 6.92 |
| Bilateral | 6.71 | 7.61 | 7.11 | |
| Tessier cleft N˚2 |
|
| 5.65 | 5.65 |
| Tessier cleft N˚7 | Unilateral | 6.12 |
| 6.12 |
| Bilaterale | 7.40 | 8.1 | 7.75 | |