This post courtesy of Anne Taylor-Vaisey:
Barratt A, Wyer PC, Hatala R, McGinn T, Dans AL, Keitz S et al. Tips for learners of evidence-based medicine: 1. Relative risk reduction, absolute risk reduction and number needed to treat. CMAJ 2004; 171(4):353-358.
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Montori VM, Kleinbart J, Newman TB, Keitz S, Wyer PC, Moyer V et al. Tips for learners of evidence-based medicine: 2. Measures of precision (confidence intervals). CMAJ 2004; 171(6):611-615.
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McGinn T, Wyer PC, Newman TB, Keitz S,
Leipzig
R, For GG. Tips for learners of evidence-based medicine: 3. Measures of observer variability (kappa statistic). CMAJ 2004; 171(11):1369-1373.Full text link
Hatala R, Keitz S, Wyer P, Guyatt G, for The Evidence-Based Medicine Teaching Tips Working Group. Tips for learners of evidence-based medicine: 4. Assessing heterogeneity of primary studies in systematic reviews and whether to combine their results. CMAJ 2005; 172(5):661-665.
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