Table 2

Risk factors for 90-day mortality of patients with sepsis or septic shock by Cox regression analysis

VariablesHR (95% CI)P values
Body mass index (kg/m2)0.940 (0.889 to 0.994)0.029
Hypotension0.781 (0.229 to 2.670)0.694
Lactate level (mmol/L)1.018 (0.943 to 1.098)0.648
Oliguria1.288 (0.715 to 2.321)0.399
Pao2/Fio2 (mm Hg)1.000 (0.997 to 1.002)0.933
Septic shock1.075 (0.320 to 3.615)0.907
SOFA score1.229 (1.123 to 1.345)<0.001
APACHE II score1.050 (1.022 to 1.080)<0.001
Intubated1.511 (0.931 to 2.452)0.095
  • APACHE, Acute Physiology and Chronic Health Evaluation; SOFA, Sequential Organ Failure Assessment.

  • The variables significantly associated with 90-day non-survival in the univariate analysis were used in the Cox proportional hazard regression analysis.