Research article
Estimating the number needed to treat from continuous outcomes in randomised controlled trials: methodological challenges and worked example using data from the UK Back Pain Exercise and Manipulation (BEAM) trial
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* Corresponding author: Robert Froud r.j.froud@qmul.ac.uk
1 Centre for Health Sciences, Barts and the London School of Medicine and Dentistry, London, E1 2AT, UK
2 Warwick Clinical Trials Unit, Warwick Medical School, Gibbet Hill Road, Coventry, CV4 7AL, UK
BMC Medical Research Methodology 2009, 9:35 doi:10.1186/1471-2288-9-35
Published: 11 June 2009Additional files
Additional file 1:
Supplement. A word document detailing equations for both of the methods described. Stata modules to perform these tasks are available from the corresponding author on request.
Format: DOC Size: 192KB Download file
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