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Cohort study
释义
Cohort study
Encyclopedia
医学
流行病学研究的统计学设计
释
Cohort study
队列研究统计学设计
从目标人群选取未患某研究疾病的代表性样本,按是否暴露于某个可疑因素分为暴露组(或不同暴露水平的亚组)和非暴露组,随访观察一段时间后,比较不同组(或亚组)之间疾病的发病率或死亡率差异,从而判定暴露因素与疾病有无关联及关联大小的一种分析性研究方法。
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uncertainty-sensitive planning
uncertainty treatment of experimental data
uncharged particle
uncharmed
unchecked
unchirped
UNCHR
uncia
unciform bone
uncinate fasciculus
uncinate process
unciniger
uncinus
UNCITRAL
UNCITRAL Model Law on Electronic Commerce
UNCITRAL Model Law on Electronic Signature
uncivil individuals
uncivilized tribe
unclassified tailings consolidated filling
Uncle
Uncle Boonmee Who Can Recall His Past Lives
uncle cousin marriage
Uncle Doggie's Nirvana
Uncle Ebo Whyte
Uncle Suni
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