For each of the following measures, give the value that implies no difference between the two groups being compared. Relative risk. Odds ratio. Percent increase in risk.

Hayley Bernard

Hayley Bernard

Answered question

2022-07-21

For each of the following measures, give the value that implies no difference between the two groups being compared. Relative risk. Odds ratio. Percent increase in risk.

Answer & Explanation

phravincegrln2

phravincegrln2

Beginner2022-07-22Added 19 answers

Since
R e l a t i v e   r i s k = R i s k   i n   c a t e g o r y   1 R i s k   i n   c a t e g o r y   2
if Relative risk = 1, then Risk in category 1 = Risk in category 2, which means that those two categories are not different.
Since
O d d s   r a t i o = O d d s   i n   c a t e g o r y   1 O d d s   i n   c a t e g o r y   2 ,
if Odds ratio = 1, then Odds in category 1 = Odds in category 2, which means that those two categories are not different.
Since
P e r c e n t   i n c r e a s e   i n   r i s k = R i s k   i n   c a t e g o r y   1 R i s k   i n   c a t e g o r y   2 R i s k   i n   c a t e g o r y   2 100 %
(assuming that Risk in category 2 is actually the Baseline risk- if it isn't, simply change the denominator to Risk in category 1 and multiply the entire expression with -1), if Percent increase in risk =0, then Risk in category 1- Risk in category 2 = 0, which means that Risk in category 1 = Risk in category 2, which means that those two categories are not different.
Result:
1;1;0

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