Ordinal Reanalysis of the SHEP Trial
Author(s) -
Philip M. Bath,
Chamila Geeganage,
Laura J. Gray
Publication year - 2008
Publication title -
stroke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.397
H-Index - 319
eISSN - 1524-4628
pISSN - 0039-2499
DOI - 10.1161/strokeaha.108.527044
Subject(s) - medicine , stroke (engine) , gray (unit) , physical therapy , nuclear medicine , mechanical engineering , engineering
To the Editor:The article by Patel and colleagues relating to long-term follow-up of patients in the SHEP study1 highlights a common problem in vascular prevention trials, namely that the sample size needed to detect an effect on ‘all’ stroke (or the composite of stroke, myocardial infarction, and vascular death) is insufficient to assess effects on fatal events alone. In the case of SHEP, chlorthalidone-based antihypertensive therapy significantly reduced all stroke (269 events) but not fatal …
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