Type 1 error for two degrees of freedom tests.

The abbreviations are as in Table 1. The values are given for all SNPs as well as for stratified frequency groups.* 2df test based on 1df corrected tests (here, 1df tests were corrected by VIFGC) [3].所用缩写详见表1。所有单核苷酸多态性（Single Nucleotide Polymorphisms，SNPs）及分层频率组的相关数值均已提供。* 该2自由度检验基于经校正的1自由度检验（本研究中，1自由度检验通过VIFGC进行校正）[3]。