Table 2

Mean age at diagnosis

Diagnosis
Number of patients
Mean age at diagnosis
Range (years)

Childhood autism
6
3.13
2.75 – 3.50
Asperger's syndrome
3
7.22
5.75 – 9.25
Autistic spectrum disorder
12
5.37
3.33 – 9.42

Table 2 shows the mean age at diagnosis and the range of age at which the diagnosis was made according to diagnostic subgroups.

Tebruegge et al. BMC Pediatrics 2004 4:4   doi:10.1186/1471-2431-4-4