赫斯特指数的计算过程需要对研究的时间序列数据进行分组，而不同的分组情况对赫斯特指数会产生不同的影响。
The calculation process of Hurst index needs to group the data of time sequence. And different grouping situations have different influences on the Hurst index.
大鼠心肌肌动蛋白含量和电镜、光镜评分组间差异性与血清酶学检测心肌细胞凋亡指数组间差异相同。
The intergroup differences of myocardial actin content and the scores of electron and light microscopy were them same of that of myocardial apoptosis index detected with serum enzymology.
国际预后指数（IPI） 有助于危险分组（转归不同）。
The International Prognostic Index (IPI) was effective in defining risk groups with significantly different outcomes.
方法：根据孕早期体重指数和孕期体重增长情况将研究对象分别进行分组，比较不同组间情况对母婴健康的影响。
Methods: All cases were divided into different groups according to BMI at early pregnancy and weight gain during pregnancy, and were compared the effect on maternal and child health.
方法：根据孕早期体重指数和孕期体重增长情况将研究对象分别进行分组，比较不同组间情况对母婴健康的影响。
Methods: All cases were divided into different groups according to BMI at early pregnancy and weight gain during pregnancy, and were compared the effect on maternal and child health.
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