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Table 1 Fixed system variables

From: Template for documenting and reporting data in physician-staffed pre-hospital services: a consensus-based update

Data variable numberMain data variable nameType of dataData variable categories or valuesData variable sub-categories or valuesTypeDefinition of data variableHow often should variable be reported
1. Fixed system variables
1.1.Specialty of physiciansCategorical1.1.1 Anaesthesiology Check boxSpecialty of physicians working in the service on a regular basisAnnual
  1.1.2 Emergency medicine    
  1.1.3 Intensive care    
  1.1.4 Surgery    
  1.1.5 Internal medicine    
  1.1.6 Other    
1.2.Training level of physiciansCategorical1.2.1 Trainee/registrar Check box Annual
  1.2.2 Specialist    
1.3.Composition of teamCategorical1.3.1 Nurse Check boxQualification of non-p-EMS personnel accompanying the physician during missionAnnual
  1.3.2. Paramedic  As defined by each national service 
  1.3.3. EMS-technician  As defined by each national service 
  1.3.4. Other    
1.4.Catchment populationContinuous  NumberNumber of citizens in the area covered by the service on a regular basisAnnual
1.5.Catchment areaContinuous1.5.1. Square km NumberArea in which the service is planned to operate on a regular basis, square kmAnnual
 Categorical1.5.2. Type1.5.2.1. UrbanCheck boxType of area where service operate on a regular basis (as defined by each service) Rural   
1.6.Does the service conduct primary missions?Categorical1.6.1. Yes Bullet listOn-scene missionsAnnual
  1.6.2. No    
1.7.Does the service conduct inter-hospital transfer missions?Categorical1.7.1. Yes Bullet listPatient transfers between different hospitals or facilitiesAnnual
  1.7.2. No    
1.8.Number of consultations only (advice) per yearContinuous  NumberPhysician is consulted by EMS or other professionals (give advice)Annual
1.9.Number of primary missions per yearContinuous  NumberMissions where physician is on-scene. Total number for the serviceAnnual
1.10.Number of inter-hospital transfer missions per yearContinuous  NumberInter-hospital or interfacility transfer. Total number for the serviceAnnual
1.11.Number of cancelled missions per yearContinuous  NumberAny mission where p-EMS is alarmed but not able to respond or must interrupt missionAnnual
1.12.Number of events per year per physicianContinuous  NumberThe average number of missions per individual physician per yearAnnual
1.13.Number of events for p-EMS unit/100,000 inhabitants per yearContinuous  Number Annual
1.14.Number of EMS events/100,000 inhabitants per yearContinuous  NumberNumber of events for the whole EMS system, including p-EMSAnnual
1.15.Number of p-EMS units/
100,000 inhabitants
Continuous  Number Annual
1.16.Number of p-EMS units/km2Continuous  NumberArea in which the service operates on a regular basisAnnual
1.17.Available vehicles in serviceCategorical  Check boxAvailable vehicles on a regular basis for p-EMSAnnual
  1.17.1. Rapid response car  Regular car, no stretcher 
  1.17.2. Regular ambulance staffed with physician  Car with stretcher. Physician is attending on a regular basis 
  1.17.3. Rotor Wing    
  1.17.4. Fixed Wing    
  1.17.5. Boat staffed with physician  Physician is attending on a regular basis 
  1.17.6. Other    
1.18.Operating hoursCategorical1.18.1. Daytime Bullet listRegular working hours, e.g., 08–16, as defined by each serviceAnnual
  1.18.2. Daylight only  Service operates only in daylight (different opening hours during the year due to seasonal variations). Daylight as defined by each service 
  1.18.3. 24/7 (full-time service)  Service operates during the day and night 
  1.18.4. Other    
1.19.Activation criteriaCategorical1.19.1. Criteria based Check boxP-EMS activated in accordance with a pre-defined set of activation criteria used by EMCCAnnual
  1.19.2. Consultation with physician  Physician-staffed unit activated only after consultation with an on-call physician 
  1.19.3. Individual  No predefined criteria for activation of p-EMS 
1.20.Dispatch systemCategorical1.20.1. Integrated EMCC Check boxIntegrated EMCC includes dispatch centres coordinating all levels of pre-hospital servicesAnnual
  1.20.2. Special EMCC  Special EMCC includes centres only responsible for p-EMS units 
  1.20.3. Other    
1.21.Advanced equipment carried by serviceCategorical1.21.1. Blood products Check boxAdvanced equipment available on a regular basis to serviceAnnual
  1.21.2. Mechanical chest compression device    
  1.21.3. Ultrasound    
  1.21.4. Advanced drugs  Drugs not available to regular EMS in the individual system 
  1.21.5. Additional airway management equipment (e.g., videoscope)  Airway management
equipment beyond the scope of regular EMS
  1.21.6. Surgical procedures supported  Service carries equipment for predefined surgical procedures 
1.22.Does a system for registration and reviewing of adverse events, critical incidents and educational events in the service exist?Categorical1.22.1. Yes Bullet list Annual
  1.22.2 No    
1.23.Categorization of events/case mixCategorical1.23.1. Cardiac arrest medical aetiology Check boxMission types the service responds toAnnual
  1.23.2. Cardiac arrest traumatic aetiology    
  1.23.3. Trauma    
  1.23.4. Breathing difficulties    
  1.23.5. Myocardial infarction (MI)  Confirmed by ECG 
  1.23.6. Chest pain, MI not confirmed    
  1.23.7. Stroke    
  1.23.8. Acute neurology excluding stroke    
  1.23.9. Reduced level of consciousness    
  1.23.10. Poisoning/Intoxication    
  1.23.11. Burns    
  1.23.12. Obstetrics and childbirth    
  1.23.13. Infection    
  1.23.14. Anaphylaxis    
  1.23.15. Surgical    
  1.23.16. Asphyxiation    
  1.23.17. Drowning    
  1.23.18. Psychiatry excluding poisoning/intoxication    
  1.23.19. All of the above  Service responds to all types of events 
  1.23.20. Other    
1.24.Number of intubations successful on first attempt and without desaturation (DASH1a intubations) /100 intubationsContinuous  Number Annual
1.25.Number of patients where blood glucose was measured after ROSC/100 ROSCContinuous  Number Annual
  1. EMS- Emergency medical services, p-EMS - Physician-staffed emergency medical services, EMCC - Emergency medical communication centre, MI - Myocardial infarction, ECG – Electrocardiogram, DASH1a - Definitive airway sans hypoxia/hypotension on first attempt,
  2. ROSC – Return of spontaneous circulation