X-Linked Alpha Thalassemia Mental Retardation Syndrome (ATR-X) X-Linked Alpha Thalassemia Family Support Network -->
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Major Physical/Mental Manifestations

Characteristic and % of Persons with Manifestations

Severe Mental Retardation............100%

Normal Birth Weight...................... 96%

Neonatal Hypotonia....................... 92%

Seizures.......................................... 40%

Characteristic Face........................ 93%

Microcephaly................................. 71%

Genital Abnormalities..................... 96%

Skeletal Abnormalities................... 91%

Short Stature................................... 76%

****All Statistics are taken from a report titled "Clinical and Hematologic Aspects of the X-Linked Alpha Thalassemia/Mental Retardation Syndrome (ATR-X) published in the American Journal of Medical Genetics 55:288-299 (1995).