CODEX index and prognosis of patients with exacerbation of COPD.


We read with great interest the article by Almagro et al 1 in this issue of CHEST (see page 972 ). In this article, the authors proposed a new index for shortand intermediate-term prognoses among patients with COPD: the CODEX (comorbidity, obstruction, dyspnea, and previous severe exacerbations) index. However, a few important points should be highlighted… (More)
DOI: 10.1378/chest.13-2516