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Sensitivity and specificity of trauma team activation protocol criteria in an Italian trauma center: A retrospective observational study.

BACKGROUND: The trauma team (TT) model could reduce mortality, morbidity, and duration of hospital stay, costs, and complications. To avoid over- or undertriage for trauma team activation, robust criteria have to be chosen.

OBJECTIVE: This study aimed to evaluate the sensitivity and specificity of a TT activation protocol for major trauma patients to predict the need for emergency treatment.

METHODS: A retrospective observational study was carried out in the Emergency Department (ED) of a major Italian trauma center. Patients with trauma or burns who accessed the ED in 2015 with a triage red or yellow priority treatment code were included, while pediatric patients were excluded. Sensitivity, specificity and positive predictive values were calculated for each TT activation criteria and the aggregated criteria.

RESULTS: Data from 240 patients were collected: 40.42% of patients had a congruent triage while 50% were overtriaged and 9.58% undertriaged. A correct triage led to a lower hospital stay (p < 0.01), while undertriage was not associated with patients' death (p = 0.16). All criteria had a specificity higher than 95%, a total sensitivity of 80.83% and a total positive predictive value of 43.49%.

CONCLUSION: This study highlighted that the TT activation criteria had high specificity and sensitivity, while the positive predictive value of the criteria was lower. Mechanisms of injury criteria were less specific and sensitive in detecting the TT activation correctly. As nurses play a pivotal role in the triage of traumatized patients and the TT, reduction of under- and overtriage is essential to improve the patients' health outcome.

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