Cohort studies are a type of research design. They are also called longitudinal studies because they follow groups of people over time. Results from cohort studies can help people understand human ...

Case–control studies have many advantages for identifying disease-related genes, but are limited in their ability to detect gene–environment interactions. The prospective cohort design provides a ...

Sign up for the daily CJR newsletter. A recent opinion piece argued that “the ‘death with dignity’ mantra appeals most to that cohort of people who believe they ...