1) A study of over 6,000 COPD patients in Germany found that the most common symptom reported was dyspnea on exertion, and patients with higher COPD Assessment Test (CAT) scores reported more symptoms and comorbidities than those with lower CAT scores. 2) A separate study found that a stable elevated blood eosinophil percentage predicted shorter exacerbation durations in COPD patients treated with oral corticosteroids. Patients with eosinophil percentages over 2% had exacerbations that were on average 2 days shorter. 3) A third study found that one year of treatment with fluticasone propionate/salmeterol increased total bacterial loads in induced sputum samples of COP