What Role Does Epidemiological Research Play in Cancer?
Epidemiological research investigates the distribution and determinants of cancer across different populations. Key methodologies include:
1. Cohort Studies: Following a group of individuals over time to study the incidence and risk factors of cancer. 2. Case-Control Studies: Comparing individuals with cancer (cases) to those without (controls) to identify potential causes and risk factors. 3. Cross-Sectional Studies: Observing a specific population at a single point in time to determine the prevalence of cancer and associated risk factors.