按病程及年龄分层分析结果显示它们对术后疗效无显著影响。
The analysis by illness duration and age showed that there were no significant effect on the results.
没有发现偏头痛频率有显著性差异，对年龄分层之后仍没有差异。
We found no significant differences in the frequency of lifetime and current migraine between patients and controls, even in patients stratified for age.
此外，在按年龄分层，气球扩张术是低于50%的患者有效的年龄小于40岁，是很少在青少年的有效。
Furthermore, when stratified by age, balloon dilation is less than 50% effective in patients younger than 40 years old and is rarely effective in adolescents.
分层技术给我们提供一个物体的最小年龄，但不一定是它的真实年龄。
The stratification technique gives us the minimum age of an object, which isn't necessarilly its true age.
这两位研究者和他们的同事一起做了自己的实验，增加了实验中对年龄的分层和对照。
The two researchers and their colleagues then carried out their own experiment, with the added twist of dividing their subjects up by age.
出版有偏见和分层分析和元的证据表明，回归是由研究设计，年龄，性别和吸烟影响的结果。
There was evidence of publication bias and stratified analysis and meta-regression showed outcomes were influenced by study design, age, gender and smoking.
他的目标是将来能有一栋综合素质教育大楼。在这里，零到八十岁的人，不分年龄、不分层次，都能找到自己想学的东西。
His goal is to have a comprehensive quality education building. At here, from infant to eighty years of age, all could find what they want to learn without hierarchical.
对象：调查对象来源于以整群分层方法抽取的2003级在西南科技大学就读的一年级学生528名，年龄17～20岁。
PARTICIPANTS: Totally 528 students, aged 17 to 20 years old, were recruited from grade one of year 2003 in Southwest University of Science and Technology with stratified sampling method.
方法：以年龄10～15岁少年为对象，参考第五次人口抽样调查资料，按分层随机原则取样，根据测验结果和标准化程序建立常模。
Methods: According to the fifth national demographic investigations, the norm samples aged 10 to 15 years were collected in a stratified and random way.
方法：以年龄10～15岁少年为对象，参考第五次人口抽样调查资料，按分层随机原则取样，根据测验结果和标准化程序建立常模。
Methods: According to the fifth national demographic investigations, the norm samples aged 10 to 15 years were collected in a stratified and random way.
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