Physiologic Determinants of Near-Infrared Spectroscopy-Derived Cerebral and Tissue Oxygen Saturation Measurements in Critically Ill Patients.

Quantifying the contribution of each variable to the marginal R 2 value of 0.008 demonstrated that MAP was responsible for 3.7% of the variation, and Sp o 2 was responsible for 7.5% of total variation, although treatment group assignment was responsible for 88.8% of the variation attributable to the model, albeit that treatment group allocation failed to reach statistical significance.

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