Figure 1From: Performance of capnometry in non-intubated infants in the pediatric intensive care unit Comparison of sidestream CO 2 to PaCO 2 . A: Correlation between sidestream CO2 and PaCO2 values (r2 = 0.907). B: Bland-Altman analysis of difference in CO2 between sidestream and PaCO2 (y-axis) versus average of measured sidestream and PaCO2 (x-axis), bias -2.7, precision ± 6.5.Back to article page