Results: In patients with severe sepsis and septic shock the area under the curve of qSOFA to predict mortality is 0.917 (CI: 95%; 0.86 - 0.96) cut point ≥ 2, Sensitivity = 96.88%, Specificity = 81.43% compare with area under the curve of SOFA is 0.884 (CI: 95%; 0.81 - 0.95) cut point ≥ 7, Sensitivity = 68.75%, Specificity = 91.43%.