Why Is PaO2 Not Enough? Arterial Oxygen Content as a Prognostic Indicator in COPD Patients

BACKGROUND: ) may provide a more comprehensive assessment. OBJECTIVE: in patients with COPD. METHODS: levels (low, normal, high). Mortality at 1, 3, and 5 years was analyzed. Statistical methods included ROC curves, Kaplan-Meier survival analysis, and Cox regression models. RESULTS: did not significantly change. CONCLUSIONS: in COPD patients. It should be considered a complementary parameter in clinical assessment.