Trends of the Pre-hospital Emergency Care Spectrum in Beijing From 2005 to 2014: A Retrospective Analysis

Study Overview
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Brief Summary
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This was a retrospective analysis of a cohort of all emergency care patients in Beijing from January 2005 to December 2014. This aim of this study was to analyze the trends in pre-hospital emergency care need and the emergency response times, with the intention of aiding the government to optimize medical resources and improve pre-hospital emergency care.

Detailed Description
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Pre-hospital emergency care is a very important part of Emergency Medical Service (EMS) System, crucial to patients' life support, disability and mortality rate reduction. The level of pre-hospital emergency care reflects the comprehensive ability of the organizational, management and public welfare of a country. Beijing Emergency Center and Beijing Red Cross Emergency Center are in the charge of all the pre-hospital emergency care in Beijing, which respectively subordinate to Beijing government and Chinese Red Cross Society. This study collected the data of 3,909,746 cases from these two pre-hospital care centers from January, 2005 to December, 2014 and retrospective analyzed the pre-hospital emergency call demand and first aid related time. The results of this study can help the government optimize medical resources; strengthen the prevention of related emergency diseases. The changes and trends of pre-hospital care disease spectrum also present the same problems and situation of developing megacities like Beijing. Based on the meticulous work in these 2 centers, this study has collected the most complete pre-hospital emergency care data in China.

Official Title
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Ten-year Trends in the Pre-hospital Emergency Care Spectrum in Beijing From 2005 to 2014: A Multicenter, Retrospective, Observational Study

Conditions
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Emergencies [Disease/Finding]

Intervention / Treatment
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* Procedure: Prehospital care


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: All patients treated by pre-hospital care from the Beijing Emergency Medical Center and Beijing Red Cross Emergency Center from January 2005 to December 2014 Exclusion Criteria: missing data duplicate records no identifiable chief cause cases not emergency cases
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Prehospital care<br>All pre-hospital service data were collected from January 2005 to December 2014 from the Beijing Emergency Center and Beijing Red Cross Emergency Center, which oversee all pre-hospital care in Beijing. The major illnesses were classified into 34 disease spectrum categories according to the Medical Priority Dispatch System (MPDS) which total includes 34 diseases. Data on pre-hospital emergency demand and first aid-related time intervals were analyzed to determine trends over the period. | Procedure: Prehospital care<br>* The common cause of pre-hospital care demands were Abdominal Problems, Allergies/Envenomation, Animal Bites, Assault/Sexual, Back Pain, Breathing Problems, Burns/Explosions, Carbon Monoxide/Inhalation/Radiation/Hazardous Material, Cardiac or Respiratory Arrest, Chest Pain, Choking, Convulsions/Seizures, Diabetic Problems, Drowning/Diving/Scuba Accident, Electrocution/Lightning, Eye Problems/Injuries, Falls, Headache, Heart Problems, Heat/Cold Exposure, Hemorrhage/Lacerations, Inaccessible Incident/Entrapments, Overdose/Poisoning, Pregnancy/Childbirth/Miscarriage, Psychiatric/Suicide Attempt, Sick Person, Stabbing/Gunshot/Penetrating Trauma, Stroke, Traffic Injuries, Traumatic Injuries, Unconscious/Fainting, Unknown Problems, Inter-Facility Transfer/Palliative Care, Flu-Like Symptoms, etc.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Cause of the emergency | The chief complaints of the patients were classified into 34 illnesses according to the Medical Priority Dispatch System (MPDS) which total includes 34 diseases. | 10 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The pre-hospital emergency call demand | Total number of pre-hospital emergency calls, reduces the number of missing record, records with no identifiable chief complaint, repeated data, not-emergency care. | 10 years | 
| Emergency care-related time | Emergency care-related time included emergency response time (ERT), active response time (ART), and passive response time (PRT). ART was defined as the time from emergency call to ambulance departure time; PRT was from departure time to arrival time at the pre-hospital center; ERT was the time from the emergency call to arrival time. | 10 years | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Pre-hospital Care, Diseases Spectrum, Call Demands, Emergency Response Time