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Old 09-03-2012
fadyhennawy's Avatar
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Stats Attributable Risk vs Attributable Risk Percent

I remember this term from the UW "attributable risk percent" and it was caculated as :
(RR-1)/RR

I'm confused between this and the Attributable Risk (Incidence-Incidence)..
what's the difference plz?
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Old 09-03-2012
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Default Ar/arp

attributable risk is just the difference
AR is the difference between the incidences.
Attributable risk percent = AR/Incidence of disease
or RR-1/RR
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Old 09-03-2012
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Default

Quote:
Originally Posted by celendula View Post
attributable risk is just the difference
AR is the difference between the incidences.
Attributable risk percent = AR/Incidence of disease
or RR-1/RR
I want to know the Definition (in words) of each of them, so I can distinguish them in the head of the question

Thanks anyhow!
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Old 09-03-2012
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Quote:
Originally Posted by fadyhennawy View Post
I want to know the Definition (in words) of each of them,so I can distinguish them in the head of the question

Thanks anyhow!

Sent from my Desire using Tapatalk 2
attributable risk-------proportion of disease occurences that are attributable to the exposure(difference in risk b/w exposed and unexposed population)

attributable risk percentage------excess risk in a population can be explained by exposure to a particular risk factor...important measure of impact of risk factor

source----U world
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Old 09-03-2012
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Default hope this helps

okay here it is
Attributable risk is the measure of excess incidence of disease due to particular factor(exposure,,smoking in case of lung cancer)So it is difference between incidence of lung cancer in smoker(exposed) -incidence of L.C in nonsmoker
Attributable risk percent describes the contribution of a given exposure to the incidence of disease in "relative" terms.
It can be caluculated by either dividing AR by incidence of disease in exposed or RR-1/RR..
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Default

Got it
Thanks Venky & Celendula!
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