Table 3

Incidence rates of complications in 95 children presenting without complications (group B)

Incidence rates/
100 person-years (n)
Optic pathway glioma1.2 (4)
Plexiform neurofibroma 0.6 (2)
Atlantoaxial dislocation0.3 (1)
Endocrinological disorder0.3 (1)