Association of the risk allele of dopamine transporter gene (DAT1*10) in Omani male children with attention-deficit hyperactivity disorder

We determined the DAT1-VNTR alleles in 202 Omani subjects. There were two common alleles (DAT1*9 and *10) and five rare ones. The DAT1*10 allele distribution was essentially the same both in the control (60.9%) and the patient group (64.6%). There was, however, a relatively higher occurrence of the DAT1*10 allele in ADHD males (69.4%) than females (55%), but this gender difference was not present in the control group (males 60%, females 62%).