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Table 4 Serum lactate and systolic blood pressure- and near-infrared spectroscopy-derived parameters stratified by Sequential Organ Failure Assessment score at 24 hours for all groupsa

From: The association of near-infrared spectroscopy-derived tissue oxygenation measurements with sepsis syndromes, organ dysfunction and mortality in emergency department patients with sepsis

Parameter SOFA score ≥ 2 at 24 hours# AUC (95% CI)
  Yes ( n = 65) No ( n = 100) P value*  
Serum lactate, mmol/L 3.1 ± 2.2 (2.1) 1.7 ± 1.5 (1.5) < 0.001 0.69 (0.61 to 0.78)
Systolic blood pressure 107 ± 27 (104) 128 ± 30 (126) < 0.001 0.71 (0.63 to 0.79)
Mean age, years 67 ± 17 (71) 61 ± 18 (64) 0.020 0.61 (0.52 to 0.70)
StO2     
   Initial (%) 77 ± 9 (79) 80 ± 7 (81) < 0.02 0.61 (0.52 to 0.70)
   Occlusion (%/minute) -10.7 ± 4.9 (-10.6) -12.1 ± 4.8 (-11.6) 0.14 0.57 (0.48 to 0.66)
   Recovery (%/second) 2.7 ± 1.9 (2.0) 3.8 ± 1.7 (3.9) < 0.001 0.68 (0.59 to 0.76)
  1. aSOFA: Sequential Organ Failure Assessment; AUC: area under the curve; 95% CI: 95% confidence interval; StO2: tissue oxygen saturation. #For patients in the control group in which the SOFA score at 24 hours was not measured, a SOFA score < 2 was assumed. For patients with a history of chronic renal insufficiency or end-stage renal disease, the total SOFA score used did not include the renal portion of the score. *Wilcoxon two-sample test or Fisher's exact test, as appropriate. Data are means ± SD (medians).