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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 ...
A "prospective cohort" defines the groups before the study is done, while historical studies, which are sometimes referred to as "retrospective cohort", define the grouping after the data is collected. Examples of a retrospective cohort are Long-Term Mortality after Gastric Bypass Surgery [13] and The Lothian Birth Cohort Studies. [14]
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. Cross-sectional study: A population is sampled on all proposed measures at one point in time.
Recall bias is of particular concern in retrospective studies that use a case-control design to investigate the etiology of a disease or psychiatric condition. [ 3 ] [ 4 ] [ 5 ] For example, in studies of risk factors for breast cancer , women who have had the disease may search their memories more thoroughly than members of the unaffected ...
Cohort Australia 1996 50,000 Includes four cohorts of women: born between 1921 and 1926, 1946–1951, 1973–1978 and 1989–1995 Nurses' Health Study: Cohort United States 1976 275,000 Most expensive and largest observational health study in history The Jyväskylä Longitudinal Study of Personality and Social Development, [9] (JYLS) Cohort Finland
Retrospective cohort study This page was last edited on 6 December 2016, at 18:19 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4. ...
Forty Studies That Changed Psychology: Explorations Into the History of Psychological Research is an academic textbook written by Roger R. Hock that is currently in its eighth edition. The book provides summaries, critiques, and updates on important research that has impacted the field of psychology. The textbook is used in psychology courses ...
Case–control study versus cohort on a timeline. "OR" stands for "odds ratio" and "RR" stands for "relative risk".In statistics, epidemiology, marketing and demography, a cohort is a group of subjects who share a defining characteristic (typically subjects who experienced a common event in a selected time period, such as birth or graduation).