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  2. Cohort study - Wikipedia

    en.wikipedia.org/wiki/Cohort_study

    Two examples of cohort studies that have been going on for more than 50 years are the Framingham Heart Study and the National Child Development Study (NCDS), the most widely researched of the British birth cohort studies. Key findings of NCDS and a detailed profile of the study appear in the International Journal of Epidemiology. [6]

  3. Retrospective cohort study - Wikipedia

    en.wikipedia.org/wiki/Retrospective_cohort_study

    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 ...

  4. Rotterdam Study - Wikipedia

    en.wikipedia.org/wiki/Rotterdam_Study

    The Rotterdam Study or ERGO (Dutch: Erasmus Rotterdam Gezondheid Onderzoek) is a prospective, population-based cohort study. The aim of the Rotterdam Study is to investigate etiology , preclinical phase, prognosis and potential intervention targets of chronic diseases in mid- and late-life.

  5. Category:Cohort studies - Wikipedia

    en.wikipedia.org/wiki/Category:Cohort_studies

    Download as PDF; Printable version; In other projects Wikimedia Commons; ... Pages in category "Cohort studies" The following 75 pages are in this category, out of 75 ...

  6. Longitudinal study - Wikipedia

    en.wikipedia.org/wiki/Longitudinal_study

    Cohort studies are one type of longitudinal study which sample a cohort (a group of people who share a defining characteristic, typically who experienced a common event in a selected period, such as birth or graduation) and perform cross-section observations at intervals through time. Not all longitudinal studies are cohort studies; some ...

  7. Whitehall Study - Wikipedia

    en.wikipedia.org/wiki/Whitehall_Study

    The Whitehall Studies investigated social determinants of health, specifically the cardiovascular disease prevalence and mortality rates among British civil servants.The initial prospective cohort study, the Whitehall I Study, [1] examined over 17,500 male civil servants between the ages of 20 and 64, and was conducted over a period of ten years, beginning in 1967.

  8. British Doctors Study - Wikipedia

    en.wikipedia.org/wiki/British_Doctors_Study

    Because of the limited sample size females were excluded from most analyses and publications focused on the male physicians. The respondents were stratified into decade of birth, sex and their cause-specific mortality, as well as general physical health and current smoking habits, followed up in further questionnaires in 1957, 1966, 1971, 1978 ...

  9. Prospective cohort study - Wikipedia

    en.wikipedia.org/wiki/Prospective_cohort_study

    Case–control study versus cohort on a timeline. "OR" stands for "odds ratio" and "RR" stands for "relative risk". A prospective cohort study is a longitudinal cohort study that follows over time a group of similar individuals ( cohorts ) who differ with respect to certain factors under study to determine how these factors affect rates of a ...