BMC Medical Research Methodology | Vol 7

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Volume 7 (2007) - May 2007

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Questionnaire discrimination: (re)-introducing coefficient δ

Matthew Hankins BMC Medical Research Methodology 2007, 7:19 (18 May 2007)

Assessing differential attrition in clinical trials: self-monitoring of oral anticoagulation and type II diabetes

Carl Heneghan, Rafael Perera, Alison Ward A, David Fitzmaurice, Emma Meats, Paul Glasziou BMC Medical Research Methodology 2007, 7:18 (2 May 2007)

Abstract | Full text | PDF | PubMed | Editor’s summary

'Relative attrition' provides information about patient and trial characteristics that affect drop out and may be a useful tool in systematic review methodology, as demonstrated in reviews of self-management of anticoagulation and blood pressure among diabetics.