An instrument validated for Brazil, the Therapeutic Intervention Scoring System TISS-28 was used to measure the severity of the patients' conditions.
Para medir la gravedad de los pacientes fue utilizado un instrumento ya validado en Brasil, el Therapeutic Intervention Scoring System TISS - 28.
Para mensurar a gravidade dos pacientes, foi utilizado um instrumento já validado no Brasil, o Therapeutic Intervention Scoring System TISS  28.