Factorial clinical trial. Factorial clinical trial allows testing more than one intervention with only one sample of participants. The clinical trial is the king of epidemiological designs. But it is also the most expensive to perform. And, in our times,…
Cluster clinical trials. Cluster clinical trials are randomized trials in which the unit of randomization is not the individual, but groups of individuals.
Intention-to-treat analysis. Intention-to-treat analysis respects the initial group allocation of the participants when analyzing trial results.
Analysis of results in a crossover clinical trial The analysis of a crossover clinical trial differs from that of a classical parallel trial. It must take into account the period and sequence effects.
Composite variable A composite variable combines variables to increase the number of events and decrease the sample size.