Analysis of association between prostate cancer risk and the mtDNA haplogroups in this study.

Abbreviations: CI, confidence interval; OR, odds ratio.
Each haplogroup (hg) was first tested separately and then each phylogenetically-combined group was also tested.
*The Fisher exact test of proportions.

缩写说明：CI为置信区间（confidence interval），OR为比值比（odds ratio）。
所有单倍群（haplogroup，缩写hg）均先单独开展检测，随后再对每个系统发育组合组进行检测。
* 针对比例数据的费希尔精确检验（Fisher exact test）。