Risk Factors of Poor Outcomes after Admission for a COPD Exacerbation: Multivariate Logistic Predictive Models

Abstract

/L, purulent sputum, long-term oxygen therapy (LTOT) and CAT ≥ 31 at admission. The final model showed that Hb < 13 g/L (OR = 2.46, 95%CI 1.09-6.36), CRP ≥ 45 mg/L (OR = 2.91, 95%CI: 1.11-7.49) and LTOT (3.07, 95%CI: 1.07-8.82) increased the probability of poor outcome up to 82.4%. Adding a CAT ≥ 31 at admission increased the probability to 91.6% (AUC = 0.75; p = 0.001). Up to 36.8% of COPD patients had a poor outcome within 3 months after hospital discharge, with low hemoglobin and high CRP levels being the risk factors for poor outcome. A high CAT at admission increased the predictive value of the model.