Patient | Cat cry | Typical dysmorphism | Microcephaly | Psychomotor retardation3-150 | Speech delay |
1 | + | − | − | Mild | + |
19 | − | + | + | Mild/moderate | − |
25 | − | + | + | Moderate | + |
45 | ? | + | + | Moderate/severe | + |
75 | + | + | + | Moderate/severe | + |
76 | − | + | + | Moderate | + |
77 | + | + | + | Moderate | + |
80 | − | − | + | Severe | + |
↵3-150 The psychomotor retardation groups were defined according to Marinescu et al 30 and Kjaer and Niebuhr.45