Risk Factors Associated with Late Failure of Noninvasive Ventilation in Patients with Chronic Obstructive Pulmonary Disease

<div>Comparisons between initiation and 1–2 h of NIV: (a) GCS, (b) respiratory rate (breaths/min), (c) heart rate (beats/min), (d) pH, (e) PaCO<sub>2</sub> (mmHg), and (f) PaO<sub>2</sub>/FiO<sub>2</sub> (mmHg).</div>

Canadian Respiratory Journal

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Figure 2

Figure 2: Risk Factors Associated with Late Failure of Noninvasive Ventilation in Patients with Chronic Obstructive Pulmonary Disease 