Key points are not available for this paper at this time.
The stepped-wedge cluster randomised trial (SW-CRT) is a novel cluster randomised trial variant that is increasingly being used. It is particularly relevant for evaluating service innovations in learning healthcare organisations There has been an exponential increase in the use of this design over the past few years with an expected increase in publications in the near future.
Hemming et al. (Fri,) studied this question.