Table 2. FY^*A and FY^*B allele frequencies in Asian populations.

Population	Number	FY*A	FY*B	Method	P value
Thais (present study)	500	0.962	0.038	PCR-SSP	-
Brazilian Japanese descendants [14]	209	0.785	0.215	PCR-RFLP	< 0.001
Jiangsu Chinese [21]	146	0.938	0.062	PCR-SSP	0.114
Dalian Chinese [17]	120	0.933	0.067	PCR-ASP	0.075
Korean [22]	107	0.921	0.079	PCR-RFLP	0.014
Malaysian [23]	60	0.908	0.092	PCR-ASP	0.013

Abbreviations: SSP, sequence-specific primers; RFLP, restriction fragment length polymorphism; ASP, allele-specific primer.