Table 2 Near-infrared spectroscopy-derived parameters in ICU survivors and non-survivors

 StO₂ (%)

78 (70–82)

81 (75–85)

0.176

 Downslope 1 (%/minute)

−8.1 (−9.6 - −6.7)

−7.9 (−10 - −6.2)

0.764

 Downslope 2 (%/minute)

−7.7 (−10.5 - −5.6)

−6.7 (−10.5 - −3.4)

0.200

 Delta-downslope (%/minute)

0.1 (−1.2 - 1.7)

2.1 (−0.5 - 3.6)

0.050

 Upslope (%/minute)

150 (114–206)

103 (44–224)

0.202

 AUC StO₂

14.6 (9.2-26.8)

4.3 (0.5-16.6)

0.002

 Tissue haemoglobin index

10.9 (8.4-12.9)

10.9 (8.4-13.7)

0.612

 StO₂ (%)

80 (76–84)

79 (73–85)

0.567

 Downslope 1 (%/minute)

−8.8 (−10.3 - −7.6)

−8.7 (−10.5 - −7.9)

0.927

 Downslope 2 (%/minute)

−9.0 (−10 - −7.2)

−6.5 (−8.6 - −5.4)

0.010

 Delta-downslope (%/minute)

0.4 (−0.8 - 1.8)

2.8 (0.4-3.8)

0.004

 Upslope (%/minute)

185 (143–217)

141 (75–183)

0.016

 AUC StO₂

14.5 (11.2-21.3)

7.9 (4.3-12.6)

0.001

 Tissue haemoglobin index

11.0 (9.1-12.8)

11.4 (9.5-13.7)

0.432