Evidence Based Practise

Question 1

how many grades of evidence are there?

Answer 1

5

Question 2

describe grade 5 Evidence.

Answer 2

• opinions of respected authority
• clinical evidence
• descriptive studies
• reports from expert committees

e.g. like a tutor giving opinion

Question 3

describe grade 4 evidence

Answer 3

• evidence from well-designed, non-experimental studies from more than one research group

Question 4

describe grade 3 evidence

Answer 4

• evidence from non-randomised, well-designed trials
• from a cohort

Question 5

describe grade 2 evidence

Answer 5

• strong evidence
• from at least one properly designed randomised, control trial of good size

Question 6

describe grade 1 evidence

Answer 6

• strong evidence
• at least one systemic review
• multiple randomised controlled trials

Question 7

what are the 7 hierarchies of evidence?

Answer 7

• ideas, opinions
• case report
• cross-sectional survey
• case control study
• controlled trials
• randomised controlled double blind trial
• systemic review and meta-analysis