Intended for healthcare professionals

Research Methods & Reporting Statistics Notes

Brackets (parentheses) in formulas

BMJ 2011; 343 doi: (Published 11 August 2011) Cite this as: BMJ 2011;343:d570

Thank you for spotting our mistake

I want to thank Phil McShane for spotting the mistake in the first
version of this note. We are very grateful to him for this and to BMJ for
agreeing to correct the note on line. All I can say in our defense is
that people who never make mistakes never make anything.

Competing interests: No competing interests

17 August 2011
J Martin Bland
Prof. of Health Statistics
University of York