cohort 是什么意思

	n. 1.(古罗马的)步兵大队(300-600人)。 2.〔常 pl.〕军队；一群，队 (of)。 3.【生物学】区，股。 4.助手；同伴；共犯，同谋者；追随者。

	a group of people having approximately the same age 同义词：age group, age bracket,
	a band of warriors (originally a unit of a Roman Legion)
	a company of companions or supporters

	1.	He is one of the cohorts of the local political boss . 他是当地政治大亨的党徒之一。
	2.	All cohort data are affected by possible selection effects . 所有同期组群资料都受到可能发生的选择作用的影响。
	3.	Cohort analysis traces the subsequent vital history of such cohorts . 对同批人进行分析能追溯出这种同批人随后的重大历史。
	4.	Mortality rates actually increased with age in the same birth cohort . 在相同的血统组中，死亡率实际上随年龄的增加而增加。
	5.	Americans have used the cohort survival method for the planning of their public works . 美国人用群体幸存法来规划他们的公共工程。
	6.	Lung cancer rates increase steadily from the youngest to the oldest ages in all birth cohorts . 从年纪最小到年纪最老，在所有的血统组中，肺癌率都是稳定地增加。
	7.	Each curve in the figure reveals high lung cancer death rates in successive birth cohorts at the same age . 在图中，每条曲线都表明，在延续血统组中年龄相同时，肺癌死亡率较高。
	8.	Environment exposures in childhood and early adulthood exerted a lasting effect on the long cancer experience of the immigrant cohort . 童年和青年时期的环境暴露对移民的肺癌发生留下了持久的影响。
	9.	Meet with the different needs of the future cohort 长期护理服务的高需求及增长
	10.	Formerly first spear centurion to the prime cohort 前任的13军团主力步兵团

cohort是什么意思