Table 5

Comparison of the HOXA1 and HOXB1 allelic variants based on the clinical characteristics of the subjects with autism spectrum disorders (ASD)*

HOXA1HOXB1
A/AA/GG/G+/++/INSINS/INS
*No statistical differences were identified between the allelic variants and the clinical data using an extension of Fisher’s exact test.
†Abnormal MRI seen in our subjects included encephalomalacia, atrophy of the optic chiasm, small periventricular white matter, and cerebellar hypoplasia.
Gender (n=35)
    Male19801764
    Female521530
IQ (n=25)
    <7013211141
    ≥70360531
MRI finding (n=20)
    Abnormal†301211
    Normal1060853
EEG (n=16)
    Abnormal410212
    Normal551722
Seizures (n=34)
    Yes611341
    No17901853
Language regression (n=33)
    Yes7511120
    No15501064