Review
Tips for learners of evidence-based medicine: 1. Relative risk reduction, absolute risk reduction and number needed to treat
Alexandra Barratt, Peter C. Wyer, Rose Hatala, Thomas McGinn, Antonio L. Dans, Sheri Keitz, Virginia Moyer, Gordon Guyatt for and ; The Evidence-Based Medicine Teaching Tips Working Group
CMAJ August 17, 2004 171 (4) 353-358; DOI: https://doi.org/10.1503/cmaj.1021197
Alexandra Barratt
Peter C. Wyer
Rose Hatala
Thomas McGinn
Antonio L. Dans
Sheri Keitz
Virginia Moyer

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- Tips for teachers of evidence-based medicine: 1. Relative risk reduction, absolute risk reduction and number needed to treat -
A companion version of this article directed at teachers of evidence-based medicine [207 KB PDF]
An interactive version of this article as well as other tools and resources can be found at www.ebmtips.net/ci001.asp
- Tips for teachers of evidence-based medicine: 1. Relative risk reduction, absolute risk reduction and number needed to treat -
A companion version of this article directed at teachers of evidence-based medicine [207 KB PDF]
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- Wyer, P. C., Keitz, S., Hatala, R., Hayward, R., Barratt, A., Montori, V., Wooltorton, E., & Guyatt, G. (2004). Tips for learning and teaching evidence-based medicine: introduction to the series. CMAJ, 171(4), 347-348. Accessed January 25, 2021. https://doi.org/10.1503/cmaj.1031665.
- Montori, V. M., Wyer, P., Newman, T. B., Keitz, S., & Guyatt, G. (2005). Tips for learners of evidence-based medicine: 5. The effect of spectrum of disease on the performance of diagnostic tests. CMAJ, 173(4), 385-390. Accessed January 25, 2021. https://doi.org/10.1503/cmaj.1031666.
- McGinn, T., Wyer, P. C., Newman, T. B., Keitz, S., Leipzig, R., & for, G. G. (2004). Tips for learners of evidence-based medicine: 3. Measures of observer variability (kappa statistic). CMAJ, 171(11), 1369-1373. Accessed January 25, 2021. https://doi.org/10.1503/cmaj.1031981.
- Barratt, A. L., Wyer, P. C., Guyatt, G., & Simpson, J. M. (2005). NNT for studies with long-term follow-up. CMAJ, 172(5), 613-615. Accessed January 25, 2021. https://doi.org/10.1503/cmaj.1041709.
- Hatala, R., Keitz, S., Wyer, P., & Guyatt, G. (2005). Tips for learners of evidence-based medicine: 4. Assessing heterogeneity of primary studies in systematic reviews and whether to combine their results. CMAJ, 172(5), 661-665. Accessed January 25, 2021. https://doi.org/10.1503/cmaj.1031920.
- Montori, V. M., Kleinbart, J., Newman, T. B., Keitz, S., Wyer, P. C., Moyer, V., & Guyatt, G. (2004). Tips for learners of evidence-based medicine: 2. Measures of precision (confidence intervals). CMAJ, 171(6), 611-615. Accessed January 25, 2021. https://doi.org/10.1503/cmaj.1031667.
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Tips for learners of evidence-based medicine: 1. Relative risk reduction, absolute risk reduction and number needed to treat
Alexandra Barratt, Peter C. Wyer, Rose Hatala, Thomas McGinn, Antonio L. Dans, Sheri Keitz, Virginia Moyer, Gordon Guyatt for
CMAJ Aug 2004, 171 (4) 353-358; DOI: 10.1503/cmaj.1021197
Tips for learners of evidence-based medicine: 1. Relative risk reduction, absolute risk reduction and number needed to treat
Alexandra Barratt, Peter C. Wyer, Rose Hatala, Thomas McGinn, Antonio L. Dans, Sheri Keitz, Virginia Moyer, Gordon Guyatt for
CMAJ Aug 2004, 171 (4) 353-358; DOI: 10.1503/cmaj.1021197
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