Comparing to contrals, there was a trend toward an increased frequency of the G/G and A/A homozygote, but a trend toward a decreased frequency of the G/A heterozygote in the PD cases.

• 和对照组比较，PD组野生型和突变型纯合子（G/G和A/A）的频率分布有增高趋势，而杂合子基因型（G/A）的分布则有降低趋势。