Cumulative incidence

WikiDoc Resources for Cumulative incidence
Articles
Most recent articles on Cumulative incidence Most cited articles on Cumulative incidence Review articles on Cumulative incidence Articles on Cumulative incidence in N Eng J Med, Lancet, BMJ
Media
Powerpoint slides on Cumulative incidence Images of Cumulative incidence Photos of Cumulative incidence Podcasts & MP3s on Cumulative incidence Videos on Cumulative incidence
Evidence Based Medicine
Cochrane Collaboration on Cumulative incidence Bandolier on Cumulative incidence TRIP on Cumulative incidence
Clinical Trials
Ongoing Trials on Cumulative incidence at Clinical Trials.gov Trial results on Cumulative incidence Clinical Trials on Cumulative incidence at Google
Guidelines / Policies / Govt
US National Guidelines Clearinghouse on Cumulative incidence NICE Guidance on Cumulative incidence NHS PRODIGY Guidance FDA on Cumulative incidence CDC on Cumulative incidence
Books
Books on Cumulative incidence
News
Cumulative incidence in the news Be alerted to news on Cumulative incidence News trends on Cumulative incidence
Commentary
Blogs on Cumulative incidence
Definitions
Definitions of Cumulative incidence
Patient Resources / Community
Patient resources on Cumulative incidence Discussion groups on Cumulative incidence Patient Handouts on Cumulative incidence Directions to Hospitals Treating Cumulative incidence Risk calculators and risk factors for Cumulative incidence
Healthcare Provider Resources
Symptoms of Cumulative incidence Causes & Risk Factors for Cumulative incidence Diagnostic studies for Cumulative incidence Treatment of Cumulative incidence
Continuing Medical Education (CME)
CME Programs on Cumulative incidence
International
Cumulative incidence en Espanol Cumulative incidence en Francais
Business
Cumulative incidence in the Marketplace Patents on Cumulative incidence
Experimental / Informatics
List of terms related to Cumulative incidence

Overview

Cumulative incidence (sometimes referred to as incidence proportion) is a measure of disease frequency which counts the proportion of a candidate population that becomes diseased/develops disease over a specified period of time. Cumulative incidence measures occurrence of new cases of disease. It involves the transition from one state to another, such as non-disease to diseased state (incidence of disease) or diseased to non-diseased (incidence of cure).

Types of Cumulative Incidence Calculations

Specific forms of cumulative incidence include:

• Crude mortality rate: number of deaths due to any cause/100,000 population during a specified time period
• Infant mortality rate: number of infant deaths due to any cause/1,000 population during a specified time period
• Morbidity rate: number of illnesses due to any cause/1,000 population during a specified time period
• Live birth rate: number of live births/1,000 population or childbearing women during a specified time period
• Case fatality rate: number of deaths due to disease X/number of people with disease X during a specified time period
• Attack rate: number of new cases of disease/number population at risk at beginning of time period during specified time period

Calculating Cumulative Incidence

It may also be calculated by the incidence rate multiplied by duration.

Basic equation: Cumulative Incidence = # new (incident) cases/total population at risk
Applied: CI = IR_i * t_i (where IR_i is the incidence rate, t_i is the specified time period)

References

Template:WH Template:WS