There are many useful resources about how to read specific papers (i.e. therapy, preventative screening, systematic reviews…etc.
For example, The Oxford Centre for Evidence-Based Medicine (CEBM) develops, teaches, promotes, and disseminates better evidence for health care.
- Finding the evidence: a how-to guide- 1 - Using PICO to formulate a search question. 2 - Turning search terms into a search strategy. 3 - Turning your search strategy into results (searching PubMed).
- Critical Appraisal tools- Critical appraisal worksheets to help you appraise the reliability, importance, and applicability of clinical evidence.
- Number Needed to Treat (NNT)- The Number Needed to Treat (NNT) is the number of patients you need to treat to prevent one additional bad outcome (death, stroke, etc.).
- Likelihood Ratios- The Likelihood Ratio (LR) is the likelihood that a given test result would be expected in a patient with the target disorder compared to the likelihood that that same result would be expected in a patient without the target disorder.
- Study designs- A guide to the different study types and a comparison of the pros and cons
There are several sources for free, downloadable critical appraisal worksheets or checklists. These worksheets guide you through the steps of critical appraisal. Worksheets are tailored to the type of study being appraised.
- Critical Appraisal Worksheet by CEBM Centre for Evidence-based Medicine provides useful tools and downloads for the critical appraisal of different types of medical evidence. Example appraisal sheets are provided together with several helpful examples.
- CASP Checklists This set of eight (8) critical appraisal tools are designed to be used when reading research, these include tools for Systematic Reviews, Randomized Controlled Trials, Cohort Studies, Case-Control Studies, Economic Evaluations, Diagnostic Studies, Qualitative studies, and Clinical Prediction Rule.
- Knowledge Translation Program (Toronto) Critical appraisal worksheets from the Centre for Evidence-Based Medicine Toronto, including the worksheets for diagnosis, harm, prognosis, systematic review, and therapy.