Life With Phenylketonuria. Adult Neurological Outcome of PCU Screened Patients From 1971 to 2002.

Exclusion Criteria

• •Patients not screened (born outside French territory) or before 1971.
• •Untreated screened patients
• •Patients screened for persistent benign hyperphenylalaninaemia not treated with a diet (Phenylalanine level \<10 mg / dl or 600 µmol / l without diet to be confirmed)
• •Associated confirmed neurological pathology other than a complication of phenylketonuria.
• •Refusal to participate in the assessment of Intellectual Quotient in adulthood
• •Patient screened, lost to follow-up, found, having moved to another region and not wishing to return to the CHU for follow-up.
• •Inability to receive information and or express opposition
• •Opposition to participation in the study