The reasons for the exclusions were: 7 patients were admitted in a surgical intensive care unit, 3 patients were incapable of providing informed consent or had a mini-mental scale examination MMSE < 25, 3 patients were not submitted to surgery, 1 patient was submitted to neurosurgical surgery, 1 was less than 18 years old, 1 did not speak Portuguese and 1 refused to participate.
Los criterios de exclusión fueron: pacientes ingresados en la UCI n = 7; con incapacidad de suministrar el consentimiento informado Mini-Mental State Examination MMSE < 25 n = 3; no sometidos a cirugía n = 3; sometidos a neurocirugía n = 1; con edad inferior a los 18 años n = 1; que no hablaban portugués n = 1; que se negaron a participar n = 1.
Os critérios de exclusão foram: pacientes internados em UTI n = 7; com incapacidade de fornecer consentimento informado ou Mini-Mental State Examination MMSE < 25 n = 3; não submetidos a cirurgia n = 3; submetidos a neurocirurgia n = 1; idade inferior a 18 anos n = 1; não falar Português n = 1; recusa em participar n = 1.