In control group the frequencies of (+/-) genotype and (+) allele were 10.7% and 5.3%, lower than Caucasian and Japanese population.

• 其中对照组 (+ - )基因型和 (+)等位基因的频率分别为 10 7%25和 5 3%25 ,低于报道的白种人及日本人变异频率 ;