[Assessing the inter-rater reliability of an instrument for the classification of patients--Kappa's quotient].

This study aimed to determine the reliability of Perroca's instrument model for classifying patients. Fifty patients randomly chosen were assessed by the nurses of the General Intensive Unit Care of a medical school hospital. Kappa's quotient was used to observe the concordance degree of the total scores by the nurses. The reliability analysis showed a Kappa between 0.68 and 0.90 with 95% of CI, showing a good concordance. Therefore, this study showed that this instrument model has drawn evidence of reliability.