Attributable Risk Calculator


About Attributable Risk Calculator (Formula)

The Attributable Risk Calculator is a tool used to determine the difference in risk between two groups, specifically the exposed and non-exposed groups, in a study or research setting. It helps quantify the additional risk attributed to a specific factor or exposure.

The formula used in the Attributable Risk Calculator is:

AR = Ie – Ine


  • AR represents the attributable risk.
  • Ie refers to the incidence rate in the exposed group.
  • Ine denotes the incidence rate in the non-exposed group.

The attributable risk is calculated by subtracting the incidence rate in the non-exposed group from the incidence rate in the exposed group. It provides an estimate of the additional risk associated with the exposure being studied.

The Attributable Risk Calculator is commonly used in epidemiology and public health research to assess the impact of specific factors or interventions on disease occurrence. By quantifying the attributable risk, researchers can gain insights into the contribution of an exposure to the overall risk and make informed decisions regarding preventive measures or interventions.

It is important to note that the Attributable Risk Calculator assumes a causal relationship between the exposure and the outcome being studied. The calculated attributable risk is only applicable to the specific population and conditions under investigation.

The Attributable Risk Calculator simplifies the calculation process, allowing researchers and healthcare professionals to analyze and interpret the impact of exposures on disease occurrence. It aids in decision-making, risk assessment, and the development of strategies for disease prevention and control.

Please note that the results obtained from the Attributable Risk Calculator should be interpreted in the context of the study design, population characteristics, and any limitations associated with data collection and analysis.

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