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Figure 4 | Annals of Intensive Care

Figure 4

From: End-tidal carbon dioxide monitoring using a naso-buccal sensor is not appropriate to monitor capnia during non-invasive ventilation

Figure 4

Bland-Altman plot of agreement between PaCO 2 and EtCO 2 . Bland-Altman plot of agreement between PaCO2 and EtCO2. PaCO2, CO2 partial pressure in arterial blood; EtCO2, end-tidal CO2; circle markers, COPD patients values; square markers, non-COPD patients values; COPD, chronic obstructive pulmonary disease. The horizontal lines represent the bias and the upper and lower limits of agreement.

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