Corrections

Correction

BMJ 1996; 312 doi: https://doi.org/10.1136/bmj.312.7030.563 (Published 02 March 1996) Cite this as: BMJ 1996;312:563

The number needed to treat: a clinically useful nomogram in its proper context

An editorial error occurred in this article by Chatellier et al (17 February, p 426). On p 427 the formula for the odds ratio should have read: (Pi/(1-Pi))/(Pc/(1-Pc))

Footnotes

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