Workshop 3 - Analysing and communicating data Flashcards
1
Q
What is critical appraisal?
A
Critical appraisal is the process of carefully and systematically examining research to judge its quality as well as usefulness and is an important element of evidence-based medicine.
2
Q
What is relative risk?
A
The ratio of the probability of an event occurring in the treatment group to the probability of the event occurring in the comparison, placebo group.
RR<1 = lower probability in treatment group e.g. RR of 0.5 indicates risk is halved
RR=1 same probability
RR>1 higher probability in placebo group
3
Q
What is meant by a 95% confidence intervall?
A
A 95% confidence interval is a range of values that you can be 95% certain contains the true mean of the population
4
Q
What is the risk reduction?
A
1 - RR
