名词 cohort:

1. a company of companions or supporters

2. a band of warriors (originally a unit of a Roman Legion)

3. a group of people having approximately the same age

cohortn.一群人；同伴；步兵队；[统计]队列cohort analysis断代分析,人口特性分析cohort labelling同群标记, 同类标记cohort fertility分组的生育力cohort mortality群组死亡率cohort life table同组生命表cohort nuptiality同期群结婚率cohort observation同期组观察cohort coding system分类编码系统cohort fecundability同期组群受孕概率cohort follow-up rate同队追踪率