Fig. 2From: Near-infrared spectroscopy for assessing tissue oxygenation and microvascular reactivity in critically ill patients: a prospective observational studyDownslope 1, downslope 2 and delta-downslope in healthy volunteers, ICU survivors and ICU non-survivors (on the first 3 days and on the day of death/discharge). *p < 0.05, **p < 0.01, ***p < 0.001, versus healthy volunteers, Kruskal-Wallis test with Dunn’s test for multiple comparisons. # p < 0.05, ## p < 0.01, Mann–Whitney U test. Number of patients is indicated below the error bars. StO 2 tissue O2 saturationBack to article page