Corrections

Screening tests: indices of performance

BMJ 2011; 342 doi: https://doi.org/10.1136/bmj.d4153 (Published 29 June 2011) Cite this as: BMJ 2011;342:d4153

Mistyping led to a mistake in the final option (d) of this Endgames statistical question by Philip Sedgwick (BMJ 2011;342:d3763, doi:10.1136/bmj.d3763). It currently reads (294/(34+2))×100%=99.3%, but it should read (294/(294+2))×100%=99.3%.

Notes

Cite this as: BMJ 2011;342:d4153

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