The case-control study design is often used in the study of rare diseases or as a preliminary study where little is known about the association between the risk factor and disease of interest.

There are many different types of observational studies, but here are the four most common that you need to know about: cross-sectional surveys, cohort studies, case-control studies, and case reports.

This study design does not provide any information on risk or cause. Ecological study. An ecological study examines disease at a population level. ... Case-control study. A case-control study compares ...

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.

Researchers used a case-control study design that included 690 infants who had been hospitalized for RSV-associated bronchiolitis (case patients) matched with 345 infants who had clinical visits ...

A test-negative, case–control study in Qatar showed that previous infection with pre-omicron strains of SARS-CoV-2 conveyed little protection against reinfection with BA.2.75, but more recent ...

Study: Association of prostate cancer with human papillomavirus infections: a case-control study.Image Credit: Julien Tromeur / Shutterstock. HPV and prostate cancer. Human papillomavirus (HPV) is ...