| Ages (In month) | Frequency | Pourcentage | Means and standard deviation | Minimum | Maximum |
| <12 | 16 | 18.2 | 27.5 (17.3) | 5 | 60 |
| >24 | 35 | 39.8 |
|
|
|
| 12 to 24 | 37 | 42.0 |
|
|
|
| Total | 88 | 100.0 |
|
|
|