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The relative risk of lung cancer associated with passive smoking is low, but the population attributable...

The relative risk of lung cancer associated with passive smoking is low, but the population attributable risk is considerable. What is the explanation for this? Basic epidemiology Book 2nd Edition chapter 2 study questions

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Relative risk in simple refers to the chance of getting the problem, illness or any circumstances from the risk group or from non risk group.It depicts the exposure mainly or the incidence of getting the disease (Here the relative risk is low as per the incident rate)

Attributable risk in simple refers to the variation existence in a research among the exposed and unexposed group (Here the attributable risk between exposed and unexposed is considerable means it is occurring or its possibility is more)

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