Additional file 1: of The physiological determinants of near-infrared spectroscopy-derived regional cerebral oxygenation in critically ill adults

Figure S1. Repeated measures Bland Altman plot indicating that the pooled data across the center and right sensors display a high level of agreement. Note. The red dotted lines indicate the 95% limits of agreement (i.e., the two sensors mean minus 1.96 SD and plus 1.96 SD). The black line represents the mean (i.e., bias) of recordings across sensors. Black dots represent pooled recordings of regional cerebral oxygenation across 10 intensive care unit patients. As an illustrative example, the Bland Altman analysis indicated that the mean difference (i.e., bias) between the sensors was − 0.31, which indicates that the right sensor on average records 0.31% higher than the center sensor. Furthermore, the lower and upper limits of agreement (− 7.45% and 6.84%, respectively) were minor, indicating that the sensors display high agreement. (JPEG 2129 kb