Table 1.

Genotype Distributions of GABRB3 Polymorphism and the Results of Transmission Disequilibrium Test (TDT)

GABRB3, gamma-aminobutyric acid A receptor, subunit β3; ASD, autism spectrum disorders; Others, all alleles except 183 bp allele.

^*p value for TDT test, McNemar χ2 value = 5.000, df = 1.