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Confidence intervals illuminate absence of evidence

Abstract:

EDITOR—We agree with Alderson that authors should recognise that non-significant results are compatible with a range of possible findings.1 Papers in the same issue of the BMJ do not adhere to this good advice. Koivunen et al concluded that adenoidectomy is not effective and cannot be recommended, yet the 95% confidence interval for further episodes of otitis media is compatible with an 18% absolute risk reduction.2 The clinically important difference sought was a 25% reduction. Kariminia...

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Authors


Contributors

Bland, J Martin
Altman, Doug
Publisher:
BMJ Publishing Group
Journal:
British Medical Journal (BMJ)
Issue:
328
Publication date:
2004-01-01
Source identifiers:
http://sers009b.sers.ox.ac.uk/archive/00000918/
Subjects:
UUID:
uuid:63103f0b-1a33-4eaf-a273-ef66b58c1bb5
Local pid:
ora:810
Deposit date:
2012-11-15

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