UTS Library

Evidence-based Practice & PICO searching: Evidence

In this guide:

Levels of Evidence

Your PICO search will find lots of different types of evidence. These results can be sorted into levels of evidence, with Systematic Reviews at the top, Randomised Control Trials and Cohort studies in the middle, and background information at the bottom. These levels of evidence can be seen in the pyramid below:

Levels of Evidence Pyramid

NHMRC Levels of Evidence

The National Health and Medical Research Council (NHMRC) has some great resources on assessing information to determine the levels of evidence: