Table 2.

The rs7903146 (C>T) allele frequency in different populations

Continent	Population	Method	Numbers	Frequency	Reference
Asia	Iran	PCR-RFLP	300	0.37	Present study
	Isfahan*	PCR-RFLP	80	0.41	11
	Rafsanjan*	PCR-RFLP	168	0.33	25
	North India	PCR-RFLP	184	0.42	35
	Asian Indians	PCR-RFLP	621	0.30	24
America	Mexico	PCR-RFLP	275	0.17	18
Europe	Italian	PCR-RFLP	944	0.35	33
	Polish	PCR-RFLP	195	0.29	34

Note:

^*Indicates the frequency of only two out of 31 provinces of Iran.

Abbreviation: PCR-RFLP, polymerase chain reaction restriction fragment length polymorphism.