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.
应用推荐