# Interpreting Results Flashcards

What is mean or mean change with respect to results?

Generally describes a continuous outcome such as blood pressure

What is a propotion?

The fraction of the total that possesses the outcome

What is the Absolute risk reduction or absolute risk difference?

This is the difference between the probability of the event in the control group and probability of the event in the intervention group

What does the ARD tell us?

The proportion of an event utilizing a specific treatment compared to the proportion of and event occurring in the placebo group

What os the relative risk?

It shows what the risk of the outcome in the intervention group is compared to the risk in the control group

Probability of event (Intervention group)/probability of event (Control group)

Take some time to look at how they calculated the relative risk example

What circumstance can we not calculate the relative risk?

Cannot calculate for mean change such as BP, BMI, waist circumference

What does a Relative risk of 1 mean?

No difference in risk group

What does a relative risk of <1 mean?

Less risk of outcome in the intervention group

What does a relative risk of >1 mean?

Higher risk of outcome in intervention group.

What is the relative risk reduction?

The degree to which the baseline risk is reduced or increased by the intervention

Take some time to review how to do these calculations

What is an Odds ratio

Shows the odds of the outcome occurring in the intervention group compared to the control group (Double calculation required)

Take some time to review how we calculate an odds ratio

Take some time to review how we calculate an odds ratio

What does an odds ratio of 1 mean?

No difference in odds between gorupsWa

What does an odds ratio of less then 1 mena?

Less odds of outcome in intervention group