1. Identifying Risk Factors: By comparing the risk between different groups, epidemiologists can identify factors that may contribute to the development of diseases. 2. Guiding Public Health Interventions: Understanding risk helps in designing targeted interventions to reduce disease incidence and prevalence. 3. Resource Allocation: Public health resources can be prioritized for high-risk populations to maximize the impact of health programs. 4. Policy Making: Risk measures inform policymakers about the potential impact of health regulations and preventive measures.