Suppose that a cohort of individuals is to be followed in order to relate failure rates to preceding covariate histories. A design is proposed which involves covariate data only for cases experiencing ...

A case-control study, like other medical research, can help scientists find new medications and treatments. Find out how 'cases' are compared with 'controls' in this type of study. This type of ...

Epidemiologists frequently study the experience of a population over time to estimate the association between exposure and outcome. These studies generally use case-control, prospective cohort, or ...

We used a matched test-negative, case–control study design to estimate vaccine effectiveness against any SARS-CoV-2 infection and against any severe, critical, or fatal case of Covid-19, from ...

The analyses do not match particular case subjects with particular control subjects; therefore, the study design does not adjust for household. Women and men were analyzed separately.

Study Design: This retrospective cohort study of solid organ transplant recipients with access to a transplant case management program used a case-control study design.

In this nationwide registry study, we investigated socioeconomic and structural patterns in referral to phase I cancer trials in a case-control study design.

Cohort studies are a powerful tool for conducting research in human populations. They are a type of longitudinal study design. Longitudinal studies follow participants over a period of time.