Sensitive filter is optimal for use by researchers in order to capture all relevant papers.
Specificity filter is optimal for use by clinicians and students who are requiring a strategy that may not identify all papers however will retrieve the most relevant papers.
Search Strategy: bold search terms are removed in the specificity filter
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1 Ambulances/
2 Emergency Medical Technicians/
3 Air Ambulances/
4 Emergency Medical Services/
5 paramedic*.tw.
6 ems.tw.
7 emt.tw.
8 prehospital.tw.
9 pre-hospital.tw.
10 first responder*.tw.
11 emergency medical technicians.tw.
12 emergency services.tw.
13 ambulance*.tw.
14 HEMS.tw.
15 field triage.tw.
16 out-of-hospital.tw.
17 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16
( / denotes subject heading, .tw denotes text word (title & abstract))
Olaussen A, Semple W, Oteir A, Todd P, Williams B. Paramedic literature search filters: Optimised for clinicians and academics. BMC Med Inform Decis Mak. 2017;17:146 - 51. Available from https://bmcmedinformdecismak.