Fig. 3.

Upslope and area under the curve of the hyperaemic response (AUC StO₂) 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 or above the error bars. StO ₂ tissue O₂ saturation