Communicating Risk

Question 1

What are the different types of relative risk

Answer 1

Odds ratio, hazard ratio or risk ratio

Question 2

What is risk ratio

Answer 2

Risk of outcome in expoxed/risk of outcome in unexposed

Question 3

What is the problem with risk ratio and rare diseases

Answer 3

Can seem inflated

Question 4

What is the absolute risk

Answer 4

The risk numerically in a group, the proportion who will have the diease

Question 5

What is the number needed treat

Answer 5

The average number of patients who need to be treated to prevent one additional bad outcome
nnt=1/reduction in absolute risk

Question 6

What is positive and negative framing

Answer 6

Explaining the same information to patients in different way, positive has a opptimistic view 90% survive
negative has a pesimistic view
10% will die
can affect the acceptance of disease

Question 7

What are natural frequencies

Answer 7

Description of risk by ratio or wby whole numbers liek 1 in 10
evidence suggests this aids understanding