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A retrospective cohort study, also called a historic cohort study, is a longitudinal cohort study used in medical and psychological research. A cohort of individuals that share a common exposure factor is compared with another group of equivalent individuals not exposed to that factor, to determine the factor's influence on the incidence of a ...
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In retrospective studies such as chart-review studies, the word participant may be a poor choice, because the persons being studied are not actively participating (and they may not even be aware of the particular study, although they have consented to the idea that their data may be included in scientific studies when sufficiently anonymized).
Twin study; Research designs vary according to the period(s) of time over which data are collected: Retrospective cohort study: Participants are chosen, then data are collected about their past experiences. Prospective cohort study: Participants are recruited prior to the proposed independent effects being administered or occurring.
A pooled analysis is a statistical technique for combining the results of multiple epidemiological studies. It is one of three types of literature reviews frequently used in epidemiology, along with meta-analysis and traditional narrative reviews. Pooled analyses may be either retrospective or prospective. [1]
A recent study found that more than 5 years of taking medications like blood pressure and lipid-lowering drugs was associated with a lower incidence of dementia.
Radiation lobectomy is a relatively new application of radioembolization and results are mainly reported in the form of retrospective chart review studies and case reports, without any prospective validation.
A multidisciplinary survey of 200 works reveals how Ruscha's alienation from organized religion proved to be useful for his deconstruction of art myths and shibboleths.