All::Clinical Science::Statistics::Relative risk

Intro

In statistics what is meant by Relative risk?

ratio of risk in the experimental group to risk in the control group

How is Relative risk calculated?

(rate at which events occur in the experimental group) / (rate at which events occur in the control group)

What is meant if the relative risk is >1?

the rate of an event is increased compared to control

What is meant if the relative risk is <1?

the rate of an event is decreased compared to control

How is Relative risk reduction/increase calculated?

(difference between control and experimental group rates) / (Control event rate)