Incidence

Introduction: Incidence

Description of Incidence

Incidence: Do not confuse this word with prevalence. (1) The number of specified new events, e.g., people falling ill with a specified disease, during a specified period in a specified population. (2) In optics, intersection of a ray of light with a surface. [L. incido, to fall into or upon, to happen]
Source: Stedman's Medical Spellchecker, © 2006 Lippincott Williams & Wilkins. All rights reserved.

Incidence: The number of new cases of a disease diagnosed each year.
Source: National Institute of Health

Incidence: The number of new cases of a given disease during a given period in a specified population. It also is used for the rate at which new events occur in a defined population. It is differentiated from PREVALENCE, which refers to all cases, new or old, in the population at a given time.
Source: MeSH 2007

Hierarchical classifications of Incidence

The following list attempts to classify Incidence into categories where each line is subset of the next.

MeSH 2007 Hierarchy:

• Investigative Techniques
  • Epidemiologic Methods
    • Data Collection
      • Vital Statistics
        • Morbidity
          • Incidence

MeSH 2007 Hierarchy

• Environment and Public Health
  • Public Health
    • Epidemiologic Measurements
      • Demography
        • Vital Statistics
          • Morbidity
            • Incidence

MeSH 2007 Hierarchy

• Environment and Public Health
  • Public Health
    • Epidemiologic Methods
      • Data Collection
        • Vital Statistics
          • Morbidity
            • Incidence

MeSH 2007 Hierarchy

• Information Science
  • Data Collection
    • Vital Statistics
      • Morbidity
        • Incidence

MeSH 2007 Hierarchy

• Population Characteristics
  • Demography
    • Vital Statistics
      • Morbidity
        • Incidence

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