Internal and external validity of cluster randomised trials: systematic review of recent trials
نویسندگان
چکیده
منابع مشابه
Internal and external validity of cluster randomised trials: systematic review of recent trials.
OBJECTIVES To assess aspects of the internal validity of recently published cluster randomised trials and explore the reporting of information useful in assessing the external validity of these trials. DESIGN Review of 34 cluster randomised trials in primary care published in 2004 and 2005 in seven journals (British Medical Journal, British Journal of General Practice, Family Practice, Preven...
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ژورنال
عنوان ژورنال: BMJ
سال: 2008
ISSN: 0959-8138,1756-1833
DOI: 10.1136/bmj.39517.495764.25