New polymorphic positions were observed as 438 + C and 443C in hypervariable region III (HVRIII) in Thai populations.
The nucleotide transitions in HVRIII were more predominant than the nucleotide transversions (the ration of 25:1).
Nucleotide variation T → C at site 489 has been found and is likely to be a dominant feature of Southeast Asian populations.
The CA4 was the most common CA repeats observed in Thai individuals.