Trial design {8}
This is a pragmatic, cluster-randomized, parallel-group, controlled clinical trial. In this trial, we are comparing the effectiveness of the intervention to a usual care control group on reducing rates of medically treated falls in older adults. The unit of randomization is the clinic, to avoid the risk of contamination if healthcare providers within a clinic were randomized (i.e., reducing the potential for intervention providers to communicate with control providers about the intervention and share materials). Eighteen clinics were identified for the trial, of which 9 were randomized to the intervention and 9 to usual care. Figure Study design for the STOP-FALLS cluster-randomized trial