Table 1.

Inclusion and Exclusion criteria.

	Inclusion Criteria	Exclusion Criteria
Population	Any studies that sampled PFA trainees. e.g., disaster responders, health professionals, decision-makers.	None.
Intervention	PFA training models which adhered to the five Hobfoll’s principles of an immediate mass trauma intervention to improve: safety, calming, efficacy, connectedness and hope [13].	None.
Comparison	Studies were not required to have a control or comparison group, due to the exploratory nature of the scoping review.	None.
Outcomes	All outcomes investigated by the training courses, delivered at all intervention levels: individuals, organisation and system.	None.
Studies	All study designs evaluating PFA training, e.g., qualitative, quantitative and mixed-method studies.	Non-English and Chinese language sources.