About the Authors

Kathryn Eastwood

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Validation, Writing – original draft, Writing – review & editing

kathryn.eastwood@monash.edu

Affiliations Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia, Ambulance Victoria, Doncaster, Victoria, Australia

Amee Morgans

Roles Conceptualization, Supervision, Writing – review & editing

Affiliation Emergency Services Telecommunications Authority, Burwood, Victoria, Australia

Johannes Stoelwinder

Roles Conceptualization, Supervision, Visualization, Writing – review & editing

Affiliation Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia

Karen Smith

Roles Conceptualization, Methodology, Supervision, Visualization, Writing – review & editing

Affiliations Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia, Ambulance Victoria, Doncaster, Victoria, Australia

Competing Interests

I have read the journal's policy and the authors of this manuscript have the following competing interests: Dr Kathryn Eastwood is an intensive care paramedic who previously worked for the Ambulance Victoria Referral Service (secondary telephone triage service). Professor Johannes Stoelwinder was the Chair of the Board of Ambulance Victoria. Professor Karen Smith is the Manager of Research and Evaluation for Ambulance Victoria. This does not alter our adherence to PLOS ONE policies on sharing data and materials.