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Turning a blind eye: the success of blinding reported in a random sample of randomised, placebo controlled trials

BMJ 2004; 328 doi: https://doi.org/10.1136/bmj.328.74327.37952.631667.EE (Published 19 February 2004) Cite this as: BMJ 2004;328:432

Rapid Response:

Blind evaluation of blinding process

Dear Editor,

I read with some amusement the article1 on blinding and the
assessment of the success of blinding. The authors question the current
lack of reporting on success of blinding in randomised controlled placebo
controlled trials. I am sure the authors expect the assessment of success
of blinding to be done in a blind unbiased method, and the evaluation of
the blind unbiased method for testing the success of blinding by blind
procedures and so on…..

1. Fergusson D, Glass KC, Waring D, Shapiro S. Turning a blind
eye:the success of blinding reported in a random sample of randomised
placebo controlled trials. BMJ 2004; 328, 432-434, February 21.

Professor SK Chaturvedi, MD

Consultant Psychiatrist

North Staffordshire Combined Healthcare,
Greenfield Centre,
Stoke on Trent ST6 5UD

Competing interests:
None declared

Competing interests: No competing interests

03 March 2004
Santosh K Chaturvedi
Consultant Psychiatrist
North Staffs Combined Healthcare, ST6 5UD