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  2. Prospective cohort study - Wikipedia

    en.wikipedia.org/wiki/Prospective_cohort_study

    A prospective cohort study is a longitudinal cohort study that follows over time a group of similar individuals who differ with respect to certain factors under study to determine how these factors affect rates of a certain outcome. [1]

  3. Prospective - Wikipedia

    en.wikipedia.org/wiki/Prospective

    Prospective refers to an event that is likely or expected to happen in the future. For example, a prospective student is someone who is considering attending a school. A prospective cohort study is a type of study, e.g., in sociology or medicine, that follows participants for a particular future time period.

  4. Observational study - Wikipedia

    en.wikipedia.org/wiki/Observational_study

    Cross-sectional study: involves data collection from a population, or a representative subset, at one specific point in time. Longitudinal study: correlational research study that involves repeated observations of the same variables over long periods of time. Cohort study and Panel study are particular forms of longitudinal study.

  5. Cohort (statistics) - Wikipedia

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

    A study on a cohort is a cohort study. Two important types of cohort studies are: Prospective Cohort Study: In this type of study, there is a collection of exposure data (baseline data) from the subjects recruited before development of the outcomes of interest. The subjects are then followed through time (future) to record when the subject ...

  6. Longitudinal study - Wikipedia

    en.wikipedia.org/wiki/Longitudinal_study

    A longitudinal study (or longitudinal survey, or panel study) is a research design that involves repeated observations of the same variables (e.g., people) over long periods of time (i.e., uses longitudinal data). It is often a type of observational study, although it can also be structured as longitudinal randomized experiment. [1]

  7. Nested case–control study - Wikipedia

    en.wikipedia.org/wiki/Nested_case–control_study

    A case–cohort study is a design in which cases and controls are drawn from within a prospective study. All cases who developed the outcome of interest during the follow-up are selected and compared with a random sample of the cohort. This randomly selected control sample could, by chance, include some cases.

  8. Pooled analysis - Wikipedia

    en.wikipedia.org/wiki/Pooled_analysis

    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]

  9. Cohort study - Wikipedia

    en.wikipedia.org/wiki/Cohort_study

    A current cohort study represents a true prospective study where the data concerning exposure are assembled prior to the occurrence of the fact to be studied, for instance a disease. An example of a current cohort study is the Oxford Family Planning Association Study in the United Kingdom, which aimed to provide a balanced view of the ...