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Old 08-16-2012
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Stats Estimating the P value?

A ten-year prospective study is conducted to assess the effect of regular supplementary folic acid consumption on the risk of developing Alzheimer's dementia. The investigators report a relative risk of 0.77 {95% confidence interval 0.59 -0.98) in those who consume folic acid supplements compared to those who do not. Which of the following p values most likely corresponds to the results reported by the investigators?

A)0.03
B)0.05
C)0.07
D)0.09
E)0.15
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  #2  
Old 08-16-2012
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is it A????????
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Old 08-16-2012
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Post a

it's a) 0.03
i think for calculating the p value we have to see the confidence interval(<1) not the relative risk ...and if it does not lies in between with 1,then stastical significance exist....then we have to calculate it with computed p value....so if statistical significance exist the p value should be <0.05 and there is only one option below it.........i hope it's true it's in kaplan book,plz post the answer soon

Last edited by venky2600; 08-16-2012 at 09:19 PM.
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Old 08-17-2012
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Default A

relative risk of 0.77 {95% confidence interval 0.59 -0.98)

According to this information, confidence interval is < 1. so patient is at low risk.
which should be less then alpha criteria of <0.05.
and the only answer which suits this description is 0.03
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