What is it about?
Explains that a publication that had claimed that the BHAT trial exhibited important variation in response from centre to centre had analysed the data inappropriately: the degree of variation shown was exactly what one would expect if all variation were random.
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Why is it important?
Points to the dangers of over-interpreting apparent difference in subgroups in clinical trials.
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This page is a summary of: Discussion, Journal of Clinical Epidemiology, July 1997, Elsevier,
DOI: 10.1016/s0895-4356(97)00023-1.
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