Differential dropout and bias in randomised controlled trials: when it matters and when it may not
نویسندگان
چکیده
منابع مشابه
Differential dropout and bias in randomised controlled trials: when it matters and when it may not
Dropout in randomised controlled trials is common and threatens the validity of results, as completers may differ from people who drop out. Differing dropout rates between treatment arms is sometimes called differential dropout or attrition. Although differential dropout can bias results, it does not always do so. Similarly, equal dropout may or may not lead to biased results. Depending on the ...
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ژورنال
عنوان ژورنال: BMJ
سال: 2013
ISSN: 1756-1833
DOI: 10.1136/bmj.e8668