Prevent CDI-55 + : study design and time frame
Briefly, Prevent CDI-55 + was a quasi-experimental, stepped-wedge cluster randomized design across four Alberta Health Services (AHS) acute-care adult hospitals (Prevent CDI-55 + study Basic Design. The clusters (C1, C2, C3, or C4) represent one hospital randomized to the four sequences where C = South Health Campus; C2 = Rockyview General Hospital; C3 = Peter Lougheed Centre; and C4 = Foothills Medical Centre. Each cluster included one or more 6-month control period(s) and an intervention minimum of one year. There was no transition time between periods