What's New

Levels of Evidence #2
Be the first to review our updated 'Levels of Evidence' table.
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Teaching Evidence-based Practice Workshop (5 days)
6th-10th September 2010
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CEBM in Action

Paul Glasziou
EBM in Practice

Carl Heneghan
Diagnostic Tests

Critical Appraisal

This section contains useful tools and downloads for the critical appraisal of medical evidence. Example appraisal sheets are provided together with several helpful examples. Below, you can download our calculators, as well as our PC-based software tool CATmaker.

Critical Appraisal Sheets

Systematic Review Critical Appraisal Sheet

Diagnostic Critical Appraisal Sheet

RCT Critical Appraisal Sheet

PICO Critical Appraisal Sheet (PDF)
PICO Critical Appraisal Sheet (MS-Word)

Educational Prescription Critical Appraisal Sheet (PDF)

Explanations & Examples

Calculators

All-purpose 2x2 Table
The "CATmakers Scratching Post"
Download (Adobe Flash format)

Interactive Nomogram
Generates post-test probabilities from likelihood ratios.
Download

Confidence Interval Calculator
Calculates confidence intervals around the "Difference between Two Proportions"by Dan Tandberg
Download (Microsoft Excel format)

Hazard Ratios
Estimates hazard ratios from survival curves (implements method by Parmar et al.)
Download (Microsoft Excel format)

CATmaker

CATmaker is a computer-assisted critical appraisal tool, which helps you create Critically Appraised Topics (CATs), for the key articles you encounter about Therapy, Diagnosis, Prognosis, Aetiology/Harm and Systematic Reviews of Therapy.

Download (3MB, PC) - the full version

Page last edited: 05 July 2010