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  2. Cohort study - Wikipedia

    en.wikipedia.org/wiki/Cohort_study

    A cohort study is a particular form of longitudinal study that samples a cohort (a group of people who share a defining characteristic, typically those who experienced a common event in a selected period, such as birth or graduation), performing a cross-section at intervals through time.

  3. Cohort (statistics) - Wikipedia

    en.wikipedia.org/wiki/Cohort_(statistics)

    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).

  4. 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 ...

  5. Category:Cohort studies - Wikipedia

    en.wikipedia.org/wiki/Category:Cohort_studies

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

  6. Cohort analysis - Wikipedia

    en.wikipedia.org/wiki/Cohort_analysis

    In cohort analysis, "each new group [cohort] provides the opportunity to start with a fresh set of users," [5] allowing the company to look at only the data that is relevant to the current query and act on it. For example, in eCommerce, customers who signed up in the last two weeks and who made a purchase may constitute a cohort.

  7. Cohort - Wikipedia

    en.wikipedia.org/wiki/Cohort

    Cohort (taxonomy), in biology, one of the taxonomic ranks; Cohort study, a form of longitudinal study used in medicine and social science; Cohort analysis, a subset of behavioral analytics that takes the data from a given data set; Generational cohort, an aggregation of individuals who experience the same event within the same time interval

  8. Harvard Six Cities study - Wikipedia

    en.wikipedia.org/wiki/Harvard_Six_Cities_study

    [9] [10] Crucially, unlike the earlier studies, which were generally cross-sectional in design (statistical snapshots of large, anonymous populations taken at arbitrary times), the Harvard Six Cities was a cohort study that tracked the same people over their lives, so allowing risk factors such as age, sex, and smoking history to be eliminated ...

  9. Nested case–control study - Wikipedia

    en.wikipedia.org/wiki/Nested_case–control_study

    A nested case–control (NCC) study is a variation of a case–control study in which cases and controls are drawn from the population in a fully enumerated cohort. [1] Usually, the exposure of interest is only measured among the cases and the selected controls. Thus the nested case–control study is more efficient than the full cohort design.