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Research Article Open access CC BY 4.0

Cohort Study of Factors Contributing to Mortality Two Months after Exacerbation of COPD According to Patient Destination from Emergency Department

Marisa Baré, Concepción Montón, Xavier Pomares, Juli Font, Núria Torà, Cristina Estirado, José Maria Quintana, Ana Santiago, Silvia Vidal, The IRYSS-COPD Appropriateness Study Group

Journal of Advances in Medicine and Medical Research · pp. 221–234 · Published 8 Sep 2014

10.9734/BJMMR/2015/11853

Abstract

Background: We aimed to determine the mortality two months after exacerbation of chronic obstructive pulmonary disease (eCOPD) and to identify factors associated with mortality, comparing patients admitted to wards and those discharged to home from the emergency department. Methods: This prospective multicentre study included all consecutive patients presenting with eCOPD at emergency departments in 16 public hospitals in Spain. Clinical variables were recorded from a standardized questionnaire. Independent predictors of mortality were modelled by logistic regression analysis. The calibration and discriminative power of the models for the two groups (discharged and admitted) were estimated by the Hosmer-Lemeshow test and the area under the curve (AUC), respectively. Bootstrap methods were applied for internal validation. Results: 2487 patients were included; 1537 (62%) of these were admitted to wards. A total of 155 (6.2%; 95% CI: 5.2% - 7.1%) patients had died at 2 months: mortality was four times higher in patients admitted than in patients discharged. Age ≥ 80 years, Charlson score >2, and pronounced dyspnoea were independent factors for mortality in both groups; in admitted patients, Glasgow scale, baseline treatments for COPD, previous heart disease, complications during hospitalization, and corticoids at discharge were also independent factors. Conclusions: In eCOPD, age, comorbidities, and dyspnoea are important for short-term prognosis in both patients admitted to wards and those discharged to home. In patients admitted to wards, the severity of baseline disease and eCOPD and corticoid treatment affect the short-term prognosis.

Fatal prognosis dyspnoea comorbidity destination

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