Relative Risk

{
  "id": "MLC-T-ENV-023707",
  "term": "Relative Risk",
  "field": "Environment",
  "definition": "1. The relative measure of the difference in risk between the exposed and unexposed populations in a cohort study. The relative risk is defined as the rate of disease among the exposed divided by the rate of the disease among the unexposed. A relative risk of 2 means that the exposed group has twice the disease risk as the unexposed group.\n\n2. A comparison of the risk of some health-related event such as disease or death in two groups.\n\n3. General term for measures of association calculated from the data in a two-by-two table, including risk ratio, rate ratio, and odds ratio.\n\n4. Comparison of the risk of some health-related event such as disease or death in two groups.",
  "abbreviation": "RR",
  "subject": "Health and safety",
  "see_also": [
    "Risk Ratio"
  ],
  "references": [
    "Integrated Risk Information System (IRIS) Glossary; EPA 2003",
    "CDC 2005",
    "CDC Glossary: Principles of Epidemiology in Public Health Practice at https://www.cdc.gov/csels/dsepd/ss1978/SS1978.pdf",
    "CDC Epidemiology Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/relative-risk/"
}