From: Ontogeny of the facial phenotypic variability in Mexican patients with 22q11.2 deletion syndrome
 | Patients | Controls | |||
---|---|---|---|---|---|
Group | Age range | Female | Male | Female | Male |
G1 | <  5 years | 8 | 4 | 24 | 17 |
G2 | 5 to 10.9 years | 8 | 9 | 62 | 52 |
G3 | 11 to 20 years | 2 | 6 | 21 | 24 |
 | Total | 18 | 19 | 107 | 93 |