Calculating the number needed to treat for trials where the outcome is time to an event.
Altman
D G
DG
Imperial Cancer Research Group Medical Statistics Group, Centre for Statistics in Medicine, Institute of Health Sciences, Headington, Oxford OX3 7LF. d.altman@icrf.icnet.uk
Andersen
P K
PK
D002986:Clinical Trials as Topic; D003625:Data Collection; D011379:Prognosis; D016016:Proportional Hazards Models; D018401:Sample Size; D016019:Survival Analysis