| Age | Number of cases | Percentage (%) |
| Infancy (<1 years old) | 1 | 1.14 |
| Preschool (5 - 7 years old) | 22 | 25 |
| School age (8 - 12 years old) | 44 | 50 |
| Puberty (13 - 16 years old) | 21 | 23.86 |