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Table 2 Study characteristics included in systematic review

From: The accuracy of medical dispatch - a systematic review

First author (year of publication) Design GRADE Rating Area and/or Country of publication Population Number of patients/incidents Dispatching system category Additional information
Clawson J. J. et al. (2016) [25]. Retrospective descriptive Very low Salt Lake City, USA EMD identified strokes 4712 hospital confirmed strokes Medical Priority Dispatch System Final inhospital diagnosis as stroke was reference
Dami F. et al. (2017) [22]. Retrospective observational Very low Region of Vaud, Switzerland Identification of acute stroke, onset within 5 h 427 patients Criteria Based Dispatch Final inhospital diagnosis as stroke was reference
Malekzadeh J. et al. (2015) [24]. “Quasi empirical design” Moderate Mashhad, Iran Suspected stroke among callers 246 patients CPSS vs. “Regional system” Final inhospital diagnosis as stroke was reference
Krebes S. et al. (2012) [26]. Retrospective observational Low Berlin, Germany Emergency calls due to stroke 207 patients MPDS with a new developed algorithm Final inhospital diagnosis as stroke was reference
Viereck S. et al. (2016) [23]. Retrospective observational Very low EMS Copenhagen Emergency calls due to stroke 2653 patients Criteria Based Dispatch Final inhospital diagnosis as stroke/TIA was reference
Deakin C. D. et al. (2017) [17]. Retrospective observational Very low United Kingdom Emergency calls due to CA, adult 469,400/8830 emergency calls, adult NHS Pathways Using ambulance crew’s decision as reference
Moller T. P. et al. (2016) [18]. Retrospective observational Very low Denmark and Sweden Patients from national cardiac arrest registers and connected emergency calls 776 patients from Denmark and 346 from Sweden Criteria Based Dispatch The information from the ambulance crew (cardiac arrest register) was reference
Fukushima H. et al. (2015) [19]. Before/after comparison Very low Japan Patients from national cardiac arrest register and connected emergency calls 478 patients (before) and 427 (after) “Regional system” The information from the ambulance crew (cardiac arrest register) was reference
Tanaka Y. et al. (2014) [20]. Prospective observational Very low Japan Emergency calls due to CA and connected ambulance records 2747 emergency calls with dispatcher-assisted cardiopulmonary resuscitation attempt “Regional system” The information from the fire department crew (cardiac arrest register) was reference
Vaillancourt C. et al. (2015) [16]. Retrospective observational Very low Canada Emergency calls due to CA 2260/1536 emergency calls DPCI The information from the ambulance crew (cardiac arrest register) was reference
Gellerstedt M. et al. (2016) [21]. Retrospective observational Low Vätragötland, Sweden Emergency calls due to chest pain 2285 consecutive patients dialed 112 with chest pain Criteria Based Dispatch Inhospital diagnosis as acute coronary syndrome was reference
Giannakopoulos G. F. et al. (2012) [15]. Retrospective Very low Netherlands Trauma-related dispatch 420 trauma patients Based on MOI Identification of major trauma due to definitions
Wilmer I. et al. (2015) [27]. Retrospective observational Low London’s Air Ambulance Major trauma 2203 helicopter activations Closest to CBD, but there is no formal protocol Identification of patients with serious injury due to definitions
Ball S. J. et al. (2016) [28]. Retrospective observational Low Australia, Perth Western Australia Consecutive cases of ambulance dispatch 211,473 consecutive cases of ambualnce dispatch, “whole of population study” Medical Priority Dispatch System Time critical condition by paramedic-determined patient condition at the time of departing the scene was used as reference
Dami F. et al. (2015) [13]. Retrospective observational Very low Switzerland Primary missions 29,008 ambulance missions Criteria Based Dispatch The severity of cases assessed by paramedics on site using the NACA-score was reference
Ek B. et al. (2013) [29]. Retrospective Very low Jämtland, Sweden Consecutive cases of medical dispatch 4835 ambulance dispatches Criteria Based Dispatch METTS-A according to ambulance was reference
Leopardi M. and Sommacampagna M (2013) [30]. Retrospective observational Very low Italy Emergency calls 53,606 emergency calls “Regional system” The sensitivity of subjective experience-based nurse dispatch in detecting the need for phycisian interventions
Moser A. et al. (2017) [14]. Before/after comparison Very low Switzerland Emergency calls and connected ambulance records 27,886 (before) and 38,748(after) Criteria Based Dispatch Severity of cases assessed by paramedics on site using the NACA-score was used as reference
  1. CA Cardiac arrest, CPSS Cincinnati Prehospital Stroke Score, DPCI Dispatch Priority Card Index, HEMS Helicopter Emergency Medical Service, INT Paramedic interrogation of caller, MOI Mechanism of injury, NHS National Health System, REQ Land ambulance request