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. Author manuscript; available in PMC: 2009 Jul 1.
Published in final edited form as: J Inherit Metab Dis. 2009 Jan 28;32(3):343–352. doi: 10.1007/s10545-009-1034-y

Table 2.

Neuropsychiatric problems (N= 60)

n %
Aggression 8 13%
Anxiety 16 27%
Hallucinations 5 8%
Hyperactivity 22 37%
Inattention 27 45%
OCD 15 25%
Sleep disturbances 27 45%
Autistic featuresa 15 25%
a

Autistic features: withdrawn affect, poor eye contact, poor pretend play, stereotypies, inability to transition and strong preference for routine.