Figure 2.

Disease onset in the different genetic subgroups. Disease onset was categorized according to the NICDH Pediatric Terminology as follows: 1 = birth, 2 = infancy (beginning 28 days to 12 months of age), 3 = toddler (beginning 13 months −2 years of age), 4 = early childhood (beginning 2 years to 5 years of age), 5 = middle childhood (beginning 6 years to 11 years), and 6 = early adolescent (beginning 12 years to 18 years), category provided on the Y-axis; genetic subgroup on the X-axis. Frequency, as the number of patients in each genetic group is shown according to the color coding.