Figure 2: (A) Correlation between PaCO_{2} and PetCO_{2} shows a coefficient R^{2}=0.84. Regression analysis: PaCO_{2} =0.51 × PetCO_{2}+19.35. (B) Bias and LOA between PaCO_{2} and simultaneously measured PetCO_{2} measurements. The solid line represents the mean of the differences (= bias) between PaCO_{2} and PetCO_{2} (–3.9 mmHg). The dashed lines are equivalent to 2SDs of the means (= LOA). |