Appendix 4: Classes of Evidence Reports

Primary Reports

Secondary Reports

A

Randomized controlled trial

Cluster Randomized Trial

Randomized Crossover trial

M

Meta-analysis or Systematic review

Decision analysis

Cost-benefit analysis

Cost-effectiveness study

B

Prospective Cohort Study

Retrospective Cohort Study

C

Non-Randomized Controlled Trial

Non-Randomized Crossover Trial

Case-Control Study

Time Series Study

Diagnostic, Validity or Reliability Study

R

Narrative review (Review article)

Consensus statement

Consensus report

D

Non-Controlled Trial

Case Study or Case Series

Otehr Descriptive Study

Cross-Sectional Study

Trend Study

Before-After Study

X

Medical opinion

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