matched groups

No significant differences of genotype and allele frequencies between the matched groups were found.

各相匹配组间比较未发现基因型和等位基因频率的显著性差异。

There were no differences on response time and cognitive speed between learning disabled and matched groups but with significant differences on cognitive span and strategy.

学障儿童在反应时间、加工速度上和正常儿童没有显著差异，但在加工广度和策略上不如正常儿童。

RESULTS Base-line demographic and clinical characteristics were well matched between the two groups.

结果两组之间的基线人口统计学特征和临床特征非常匹配。

The fictitious study gives two matched groups of1000 Brazilians either a vaccine or a placebo.

这项虚构的研究为各有1000名巴西人的两个组分别提供了疫苗或安慰剂。

They compared the fat intake of groups of vegetarians and meat eaters, and matched their diets up with levels of harmful blood fats.

他们比较了素食者组与肉食者组的脂肪摄入量，并将他们的膳食与血脂超标水平对应起来。

Objective: To study the early rehabilitation by comparing the outcomes in two matched groups of patients after cementless total hip arthroplasty, according to International Classification of Functioning, Disability and Health.

目的：比较早期负重和晚期负重对非骨水泥型全髋关节置换术后患者功能恢复和生存质量的影响。

Any hard struggle between equally matched groups.

平等的比赛小组间的艰苦斗争。

Results: The results of the first and second experiments showed that the visual and phonological processing ability of DT was not behind the two matched groups.

结果：实验一、二的结果为个案在视觉和语音加工任务上并不落后于两对照组；