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Prevalence of Risk Factor

Lead Author(s): Jeff Martin, MD

Definition of Prevalence of Risk Factor

The prevalence of a risk factor is also important from a public health perspective.

  • For example, a risk factor (exposure or predictor variable) may have a modest association with a disease outcome (say, a relative risk less than 2), but be a very common exposure.
  • In that instance even a small relative risk may have great public health importance if a large proportion of the population is exposed.

Example of Small Relative Risk - Public Health Concern

A good example of a small relative risk that has great public health importance because a large proportion of the population is exposed is the risk associated with second hand smoking.

Topic revision: r4 - 02 Jun 2009 - 15:21:15 - MaryB?
CTSpedia.RiskFactorPrevalence moved from CTSpedia.StudyPrevalenceRisk on 02 Jun 2009 - 20:21 by MaryB? - put it back

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