Methods 1736 cases of new-registered smear-positive were studied, with a cohort analysis.

方法对1736例新发涂阳肺结核病例的资料进行队列分析。

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One explanation is that a cohort of greybeards have fond memories of life with a less powerful EU.

一种解释是大群的老年人对欧盟权力还没那么大的日子留有美好的回忆。

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And if a cohort effect were responsible, the U-bend would not show up consistently in 40 years' worth of data.

如果人群差异因素成立的话，连续40年的数据就不可能始终呈现马蹄形趋势。

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So when we talk about a cohort study, this means taking a group of people and following them over time.

所以当我们提到定群研究,就意味着,有一群人参加实验并需一直追踪下去

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But you, everybody in the master public policy class has a cohort,

但是你，每一个公共政策硕士课的人都属于其中一级，

跟校友们的关系 - SpeakingMax英语口语达人

A cohort study means you take the same group of people and follow them every five years for that period of time.

定群研究意味着你只有一组研究对象,然后在研究期间每五年进行一次记录数据

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Wages are falling partly because a cohort of highly paid baby-boomers is retiring, replaced by younger workers.

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Thinkful then customizes the curriculum to their needs and places them with a cohort in a similar track.

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So a small cohort of young people is easier to absorb in the labour market than a large cohort.

ECONOMIST: The New Deal