Risk assessment in epidemiology involves the systematic process of identifying, evaluating, and estimating the levels of risk associated with specific health threats. This process often includes:
1. Hazard Identification: Determining the agents or factors that can cause adverse health effects. 2. Exposure Assessment: Measuring or estimating the intensity, frequency, and duration of human exposure to these agents. 3. Dose-Response Assessment: Understanding the relationship between the amount of exposure and the occurrence of health effects. 4. Risk Characterization: Combining the hazard identification, exposure assessment, and dose-response assessment to estimate the risk.