Standardized Comparison of Triage in EMS

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00468780
Recruitment Status : Completed
First Posted : May 3, 2007
Last Update Posted : May 26, 2014
Information provided by (Responsible Party):
St. Michael's Hospital, Toronto

Brief Summary:
The objective of this study is to evaluate the reliability and validity of acuity estimates by paramedics employing the Canadian Triage Acuity Scale (CTAS) in the out of hospital setting. The study has the potential to help guide policy decisions pertaining to the safe transfer of ambulance patients to alternative destinations reducing ED overcrowding and ambulance off load time. Emergency Department triage nurses employ the same acuity scale and if this study is successful the emergency departments and the EMS services could communicate about capacity to handle patients based on acuity, volumes and waiting times.

Condition or disease

  Show Detailed Description

Study Type : Observational
Actual Enrollment : 928 participants
Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Study to Evaluate the Safety and Efficacy of Redirecting Ambulance Patients to Destinations Based on Acuity
Study Start Date : February 2003
Actual Primary Completion Date : July 2009
Actual Study Completion Date : July 2009

Primary Outcome Measures :
  1. CTAS level assignment [ Time Frame: At the time of departue from scene and arrival at hospital ]
    Reliability and validity of CTAS level assignment by paramedics and EMS service implementation

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population

This study is taking place in 7 EMS systems in Ontario: Peterborough, Thunder Bay, Hamilton, Simcoe/Muskoka, Durham, Peel, and Toronto.

The participants(Both Primary care paramedics and Advance Care Parmaeidcs)are riding as civilian observers under contract to the Sunnybrook and Women's College Health Sciences Centre Research Institute and have signed liability release forms.

The main focus of the SCORE study is to determine how well paramedics in the field can correctly assign CTAS scores. By showing that it can be done reliably, decisions can be made on suitable destinations, especially for the low acuity patient.


Inclusion Criteria:

  • All patients

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00468780

Canada, Ontario
Hamilton Health Sciences
Hamilton, Ontario, Canada, L8V 1C3
Sunnybrook-Osler Centre for Prehospital Care
Toronto, Ontario, Canada, M9W 7K6
Sponsors and Collaborators
St. Michael's Hospital, Toronto
Principal Investigator: Laurie Morrison, MD Sunnybrook Health Sciences Center

Additional Information:
Responsible Party: St. Michael's Hospital, Toronto Identifier: NCT00468780     History of Changes
Other Study ID Numbers: 724180022
First Posted: May 3, 2007    Key Record Dates
Last Update Posted: May 26, 2014
Last Verified: May 2014

Keywords provided by St. Michael's Hospital, Toronto:
Canadian Triage Acuity Scale
triage nurse
triage levels
inter-rater reliability
health services outcomes