支持环 meaning in English

pivot ring

These two groups had significantly higher odds ratios ( or ) of having leucopenia or neutropenia ( combined or = 12 . 7 , p < 0 . 01 ) , but their small sample sizes , the exposure condition , and the lack of supportive literature evidence limited the validity of the results
由于两组的样本数小，工作场所实际的暴露状况，以及文献证据的缺乏，我们的结果并无法充分支持环氧乙烷和工程作业员较易罹患白血球减少的假说。