DELTA2 guidance on choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial.
Jonathan Alistair CookSteven A JuliousWilliam SonesLisa V HampsonCatherine HewittJesse A BerlinDeborah AshbyRichard EmsleyDean A FergussonStephen J WaltersEdward C F WilsonGraeme MaclennanNigel StallardJoanne C RothwellMartin BlandLouise BrownCraig R RamsayAndrew CookDavid ArmstrongDoug AltmanLuke D ValePublished in: Trials (2018)
The key messages from the DELTA2 guidance on determining the target difference and sample size calculation for a randomised caontrolled trial are presented. Recommendations for the subsequent reporting of the sample size calculation are also provided.