Phenotype of infants with impaired CAR during assessment (group 2):
Figure 3-B shows discontinuation of CAR assessment after a few steps of FiO2 reduction due to significant fluctuation of SpO2 which was associated with bradycardias (figure 3-B1). Figure 3-B2 shows the linear concordance between SpO2 and crRTO. FOE was negatively correlated with both SpO2 and crRTO. Table 3 shows a strong positive correlation between SpO2 and crRTO, HR, and FiO2, and strong negative correlation of SpO2 with FOE, and there was a significant positive correlation between SpO2 and crRTO during a significant hypoxemic episode.