E is for equivocal in EBM

doi:10.1136/bmj.328.7447.1077

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Matthew R Kiln, principal in general practice (lkiln@AOL.com)

Rosendale Surgery, London SE21 8EZ

EDITOR—Straus asks what's the E for EBM (evidence based medicine).1 E is for equivocal because that's the best assessment of most published, controlled, double blind research studies (no matter the medical journal).

The evidence for EBM is inherently unreliable for four reasons.

Firstly, a large volume of research funded by drug companies is not allowed by …