• Cristiane Chaves de Souza, Francielli Aparecida Araújo, and Tânia Couto Machado Chianca.
• Federal University of São João Del Rei, São João Del Rei, MG, Brazil.
• Rev Esc Enferm Usp. 2015 Feb 1; 49 (1): 144-51.

ObjectiveTo analyze the scientific production about the validity and reliability of the Manchester Triage System (MTS) protocol.MethodA descriptive study of an integrative literature review. Articles on the validity and reliability of the MTS developed with children and adults published between 1999 and 2013 were included.Results14 articles were selected from a total of 8438, nine of validity and five of reliability. The reliability of the MTS ranged from moderate to almost perfect, with higher intra-evaluation. Regarding validity, the results seem to point to equivalent and satisfactory sensibility and specificity levels of the MTS. The instrument proved to be a good predictor of the need for hospitalization and of hospital mortality.ConclusionThe reliability and validity of the MTS obtained in the studies is varied. It is recommended that new studies indicate necessary modifications to the MTS so that it is more safely used by nurses.

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