2.1. | Study design, setting and participants
This study included individuals of all ages included in the de-identified 10% random Pharmaceutical Benefits Scheme (PBS) sample between 2013 and 2022, which collects data from all community pharmacies, private hospitals and PBS public hospitals. Details about the structure and composition of the PBS database have been described elsewhere.5
The Human Research Ethics Committee of the University of Western Australia reviewed and approved the project (2022/ET000372).