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date: 04 March 2021

Cohort Study, Historical (Syn: historical prospective study, nonconcurrent prospective study, prospective study in retrospect) 

A Dictionary of Epidemiology

Miquel Porta

A Cohort study conducted by reconstructing data about persons at a time or times in the past. This method uses existing records about the health or other relevant aspects of a population as it was at some time in the past and determines the current (or subsequent) status of members of this population with respect to the condition of interest. Different levels of past exposure to risk factor(s) of interest must be identifiable for subsets of the population. ... ...

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