Epidemiological research relies on various methodologies, including:
Cohort Studies: Following a group of people over time to study the occurrence of disease and its risk factors. Case-Control Studies: Comparing individuals with a disease to those without to identify potential causes. Cross-Sectional Studies: Observing a population at a single point in time to identify prevalence and correlations. Randomized Controlled Trials (RCTs): Assigning participants randomly to treatment or control groups to evaluate interventions. Systematic Reviews and Meta-Analyses: Synthesizing results from multiple studies to draw broader conclusions.