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Trajectories of Severe Exacerbations of Chronic Obstructive Pulmonary Disease and Their Relationship with Mortality Risk

  • COPD
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Abstract

Purpose

Acute exacerbations of COPD (AECOPD) are important factors contributing to mortality risk. The rate of exacerbations varies overtime. An inconsistent pattern of exacerbation occurrence is a common finding. The mortality risk associated with such a pattern is not entirely clear. Our objective was to assess the risk of mortality associated with various possible patterns of AECOPD trajectories.

Methods

This is a multicenter historical cohort study. Four different exacerbation trajectories were defined according to the incidence of severe AECOPD requiring hospital admission 2 years before and after the date of the first visit to the respiratory clinic—Consistent non-exacerbators (NEx): no AECOPD before or after the index date; consistent exacerbators (Ex): at least one AECOPD both before and after the index date; converters to exacerbators (CONV-Ex): no exacerbations before and at least one AECOPD after the index date; converters to non-exacerbators (CONV-NEx): at least one AECOPD before the index date, and no exacerbations after said date. All-cause mortality risk for these trajectories was assessed.

Results

A total of 1713 subjects were included in the study: NEx: 1219 (71.2%), CONV-NEx: 225 (13.1%), CONV-Ex: 148 (8.6%), Ex: 121 (7.1%). After correcting for confounding variables, the group with the highest mortality risk was Ex. The CONV-Ex and CONV-Nex groups had a mortality risk between Ex and NEx, with no significant differences between them.

Conclusion

Different possible trajectories of severe AECOPD before and after a first specialized consultation are associated with different mortality risks. An inconsistent pattern of exacerbations has a mortality risk between Ex and NEx, with no clear differences between CONV-Ex and CONV-NEx.

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Data availability

The data were anonymized for analysis.

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Funding

The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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Authors and Affiliations

Authors

Contributions

RG contributed to the study concept, design, acquisition of data, analysis, interpretation of data, and drafting of the first version of the manuscript; JMF-G contributed to the acquisition of data, analysis, and interpretation of data; CAA-D, AE-M, and LG-R contributed to the acquisition of data. JMF-G, CAA-D, AE-M, LG-R, DD-R, IG-T, and CE contributed to the critical revision of the manuscript for important intellectual content.

Corresponding author

Correspondence to Rafael Golpe.

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Conflict of interest

Rafael Golpe declares that he has received speaking or advisory fees, or economic aid to attend congresses from Astra-Zeneca, GSK, Novartis, Chiesi, Mundipharma, Menarini, TEVA, Grifols, Ferrer, Boehringer-Ingelheim, Rovi, and Gebro Pharma, outside the submitted work. Juan Marco Figueira-Gonçalves has received honoraria for speaking engagements and funding for conference attendance from Laboratorios Esteve, MundiPharma, AstraZeneca, Boehringer Ingelheim, Ferrer, Menarini, Rovi, GlaxoSmithKline, Chiesi, Novartis, and Gebro Pharma outside the submitted work. Carlos Antonio Amado-Diago has received speaker or consulting fees from Boehringer Ingelheim, Pfizer, AstraZeneca, Novartis, Chiesi, Faes Farma, Esteve and GlaxoSmithKline, outside the submitted work. David Dacal-Rivas reports personal fees and non-financial support from Esteve, personal fees and non-financial support from Boehringer-Ingelheim, non-financial support from GSK, non-financial support from Novartis, non-financial support from TEVA, non-financial support from Chiesi, non-financial support from Ferrer, outside the submitted work. The rest of the authors have no relevant financial or non-financial interests to disclose.

Ethical Approval

This observational, non-intervention retrospective study was performed in line with the principles of the Declaration of Helsinki. The study was authorized by Comité de Ética e Investigación Clínica del Hospital Universitario Nuestra Señora de Candelaria (Registry No: CHUNSC_2022_45).

Informed Consent

Informed consent was waived for this analysis due to the non-interventional retrospective design of the study and the use of anonymous clinical data for the analysis.

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Golpe, R., Figueira-Gonçalves, J.M., Amado-Diago, C.A. et al. Trajectories of Severe Exacerbations of Chronic Obstructive Pulmonary Disease and Their Relationship with Mortality Risk. Lung 200, 601–607 (2022). https://doi.org/10.1007/s00408-022-00565-8

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  • DOI: https://doi.org/10.1007/s00408-022-00565-8

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