RT Journal Article T1 Prevalence of persistent blood eosinophilia: relation to outcomes in patients with COPD A1 Casanova, Ciro A1 Celli, Bartolome R. A1 de-Torres, Juan P. A1 Martinez-Gonzalez, Cristina A1 Cosio, Borja G. A1 Pinto-Plata, Victor A1 de Lucas-Ramos, Pilar A1 Divo, Miguel A1 Fuster, Antonia A1 Peces-Barba, German A1 Calle-Rubio, Myriam A1 Solanes, Ingrid A1 Aguero, Ramon A1 Feu-Collado, Nuria A1 Alfageme, Inmaculada A1 De Diego, Alfredo A1 Romero, Amparo A1 Balcells, Eva A1 Llunell, Antonia A1 Galdiz, Juan B. A1 Marin, Margarita A1 Moreno, Amalia A1 Cabrera, Carlos A1 Golpe, Rafael A1 Lacarcel, Celia A1 Soriano, Joan B. A1 Luis Lopez-Campos, Jose A1 Soler-Cataluna, Juan J. A1 Marin, Jose M. K1 Obstructive pulmonary-disease K1 Clinical characteristics K1 Inhaled corticosteroids K1 Exacerbations K1 Asthma K1 Fluticasone K1 Guidelines K1 Biomarker K1 Efficacy K1 Dyspnea AB The impact of blood eosinophilia in chronic obstructive pulmonary disease (COPD) remains controversial.To evaluate the prevalence and stability of a high level of blood eosinophils (>= 300 cells.mu L-1) and its relationship to outcomes, we determined blood eosinophils at baseline and over 2 years in 424 COPD patients (forced expiratory volume in 1 s (FEV1) 60% predicted) and 67 smokers without COPD from the CHAIN cohort, and in 308 COPD patients (FEV1 60% predicted) in the BODE cohort. We related eosinophil levels to exacerbations and survival using Cox hazard analysis.In COPD patients, 15.8% in the CHAIN cohort and 12.3% in the BODE cohort had persistently elevated blood eosinophils at all three visits. A significant proportion (43.8%) of patients had counts that oscillated above and below the cut-off points, while the rest had persistent eosinophil levels = 300 cells.mu L-1) and its relationship to outcomes, we determined blood eosinophils at baseline and over 2 years in 424 COPD patients (forced expiratory volume in 1 s (FEV1) 60% predicted) and 67 smokers without COPD from the CHAIN cohort, and in 308 COPD patients (FEV1 60% predicted) in the BODE cohort. We related eosinophil levels to exacerbations and survival using Cox hazard analysis.In COPD patients, 15.8% in the CHAIN cohort and 12.3% in the BODE cohort had persistently elevated blood eosinophils at all three visits. A significant proportion (43.8%) of patients had counts that oscillated above and below the cut-off points, while the rest had persistent eosinophil levels = 300 cells.mu L-1 persisting over 2 years was not a risk factor for COPD exacerbations. High eosinophil count was associated with better survival. PB European Respiratory Society SN 0903-1936 YR 2017 FD 2017-07-27 LK http://hdl.handle.net/10668/19115 UL http://hdl.handle.net/10668/19115 LA en NO Casanova C, Celli BR, de-Torres JP, Martínez-Gonzalez C, Cosio BG, Pinto-Plata V, et al. Prevalence of persistent blood eosinophilia: relation to outcomes in patients with COPD. Eur Respir J. 2017 Nov 22;50(5):1701162 DS RISalud RD Apr 7, 2025