Measure Of Frequencies

Question 1

How do you calculate relative difference?

Answer 1

Diving the two groups.

Question 2

Which is always greater absolute difference or relative difference?

Answer 2

Relative difference

Question 3

How do you calculate risk, incident risk etc..

Answer 3

Exposed over total or non-exposed total

Question 4

How do you calculate risk ratio?

Answer 4

Exposed/treated over non-exposed/treated

Question 5

When interpreting ratios (RR), (OR), or (HR) what does the following mean?
1
1.23
0.74
2.8
4.2

Answer 5

1- equal, no difference between the groups

1. 23- 23% increase or more likely
2. 74- 26% decrease or less likely
3. 8- 2.8 times more likely
4. 2- 4.2 times more likely

Question 6

How do you calculate absolute differences?

Answer 6

Subtracting the two groups