Fig.1From: Evaluation of two SpO2 alarm strategies during automated FiO2 control in the NICU: a randomized crossover studya SpO2 Histogram when FiO2 > 0.21. Bars are the median percent time, and whiskers their IQR b SpO2 Histogram of Each Subject when FiO2 > 0.21. The subject whose distribution is skewed to the right had an upper SpO2 control limit setting of 97%Back to article page