Evidence map›Paper›PMID 33451294›Full record

ArticleBMC emergency medicine2021

Validity and reliability of the South African Triage Scale in prehospital providers.

Nee-Kofi Mould-Millman, Julia M Dixon, Taylor Burkholder, Jennifer L Pigoga, Michael Lee, Shaheem de Vries, Kubendhren Moodley, Maxene Meier, Kathryn Colborn, Chandni Patel and 1 more

Abstract read
In one paragraph

Article in BMC emergency medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed.

  1. Review
  2. An inter-rater reliability study of a modified version of SATS as a prehospital triage tool.Scandinavian journal of trauma, resuscitation and emergency medicine · 2026
    Article
  3. Article
  4. Vehicle extrication in road traffic crashes: a descriptive analysis of an advanced medical rescue service in South Africa.African journal of emergency medicine : Revue africaine de la medecine d'urgence · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Observational
  13. Prehospital triage tools across the world: a scoping review of the published literature.Scandinavian journal of trauma, resuscitation and emergency medicine · 2022
    Article
  14. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Nee-Kofi Mould-MillmanDepartment of Emergency Medicine, University of Colorado Denver, School of Medicine, Anschutz Medical Campus, 12631 E 17th Ave, Room 2612, MS C326, Aurora, CO, 80045, USA. Nee-Kofi.Mould-Millman@ucdenver.edu.ORCID 0000-0003-4303-6903
Julia M DixonDepartment of Emergency Medicine, University of Colorado Denver, School of Medicine, Anschutz Medical Campus, 12631 E 17th Ave, Room 2612, MS C326, Aurora, CO, 80045, USA.
Taylor BurkholderUniversity of Southern California, Keck School of Medicine, Los Angeles, California, USA.
Jennifer L PigogaDivision of Emergency Medicine, University of Cape Town, Department of Surgery, Cape Town, South Africa.
Michael LeeDivision of Emergency Medicine, University of Cape Town, Department of Surgery, Cape Town, South Africa.
Shaheem de VriesWestern Cape Government, Department of Health, Emergency Medical Services, Cape Town, South Africa.
Kubendhren MoodleyWestern Cape Government, Department of Health, Emergency Medical Services, Cape Town, South Africa.
Maxene MeierDepartment of Pediatrics, University of Colorado Denver, School of Medicine, Aurora, CO, USA.
Kathryn ColbornDepartment of Surgery, University of Colorado Denver, School of Medicine, Aurora, CO, USA.
Chandni PatelDepartment of Emergency Medicine, University of Colorado Denver, School of Medicine, Anschutz Medical Campus, 12631 E 17th Ave, Room 2612, MS C326, Aurora, CO, 80045, USA.
Lee A WallisDivision of Emergency Medicine, University of Cape Town, Department of Surgery, Cape Town, South Africa.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe South African Triage Scale (SATS) is a validated in-hospital triage tool that has been innovatively adopted for use in the prehospital setting by Western Cape Government (WCG) Emergency Medical Services (EMS) in South Africa. The performance of SATS by EMS providers has not been formally assessed. The study sought to assess the validity and reliability of SATS when used by WCG EMS prehospital providers for single-patient triage.

methodsThis is a prospective, assessment-based validation study among WCG EMS providers from March to September 2017 in Cape Town, South Africa. Participants completed an assessment containing 50 clinical vignettes by calculating the three components - triage early warning score (TEWS), discriminators (pre-defined clinical conditions), and a final SATS triage color. Responses were scored against gold standard answers. Validity was assessed by calculating over- and under-triage rates compared to gold standard. Inter-rater reliability was assessed by calculating agreement among EMS providers' responses.

resultsA total of 102 EMS providers completed the assessment. The final SATS triage color was accurately determined in 56.5%, under-triaged in 29.5%, and over-triaged in 13.1% of vignette responses. TEWS was calculated correctly in 42.6% of vignettes, under-calculated in 45.0% and over-calculated in 10.9%. Discriminators were correctly identified in only 58.8% of vignettes. There was substantial inter-rater and gold standard agreement for both the TEWS component and final SATS color, but there was lower inter-rater agreement for clinical discriminators.

conclusionThis is the first assessment of SATS as used by EMS providers for prehospital triage. We found that SATS generally under-performed as a triage tool, mainly due to the clinical discriminators. We found good inter-rater reliability, but poor validity. The under-triage rate of 30% was higher than previous reports from the in-hospital setting. The over-triage rate of 13% was acceptable. Further clinically-based and qualitative studies are needed.

trial registrationNot applicable.

Indexed as

Emergency Medical ServicesTriageHumansProspective StudiesReproducibility of ResultsSouth AfricaEMSPrehospitalSATSSouth Africa triage scaleTriage

Identifiers

PMID33451294
PMCPMC7811258

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.