ABSTRACT
@#【Objective】To evaluate the impact of prior use of inhaled corticosteroids（IC）on the clinical outcomes of chronic obstructive pulmonary disease patients hospitalised with community- acquired pneumonia （COPD- CAP）. 【Methods】This was a multicenter，retrospective study. Data of COPD-CAP patients from five teaching hospitals in Beijing，Shandong and Yunnan Provinces during 1st January 2013 through 31th December 2016 were reviewed. The patients with and without prior use of IC were compared，including demographic characteristics，clinical and radiologic features， and outcomes. A logistic regression model was conducted to explore the impact of prior IC use on the clinical outcomes of COPD-CAP patients. 【Results】Of 725 patients included in the study，13.9%（101/725）were prior IC users. Compared with no-IC users，IC users showed higher frequency of cardiovascular comorbidity（19.8% vs 12.7%）and a CAP history in the last year（20.8% vs 11.2%）；lower occurrence of pleural effusion（13.9% vs 23.7%）；more often classified in Global Initiative for Chronic Obstructive Lung Disease（GOLD）stage 3（35.1% vs 22.9%）and GOLD 4 stage（51.9% vs 21.8%），less often in GOLD 2 stage（10.4% vs 51.0%）. Adjusted by age，gender，underlying diseases，PSI/CURB-65 score and GOLD stage，logistic regression analysis confirmed prior IC use was associated with decreased risk for noninvasive ventilation［OR = 0.220，95% CI（0.052，0.926），P = 0.029］，but not with invasive ventilation［OR = 0.290，95% CI（0.068，1.236），P = 0.094］，needing vasopressor use［OR = 1.261，95% CI（0.456，3.485），P = 0.655］，ICU admission［OR = 1.455，95% CI（0.638，3.320），P = 0.373］and 30-day mortality［OR = 1.650，95% CI（0.575，2.838）， P = 0.352］.【Conclusion】Previous IC use has no major impact on the clinical outcomes of COPD-CAP patients.