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Original research article
Influenza vaccination in patients with heart failure: a systematic review and meta-analysis of observational studies
  1. Bárbara Sucena Rodrigues1,
  2. Cláudio David2,
  3. João Costa2,3,
  4. Joaquim J Ferreira2,3,
  5. Fausto J Pinto4,5,
  6. Daniel Caldeira2,4,5
  1. 1Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
  2. 2Laboratory of Clinical Pharmacology and Therapeutics, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
  3. 3Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
  4. 4Faculdade de Medicina, Centro Cardiovascular da Universidade de Lisboa (CCUL), Centro Académico Médico de Lisboa (CAML), Universidade de Lisboa, Lisboa, Portugal
  5. 5Cardiology Department, Hospital Santa Maria / Santa Maria University Hospital - Centro Hospitalar Universitário Lisboa Norte (CHULN), Lisboa, Portugal
  1. Correspondence to Professor Daniel Caldeira, CCUL, Faculdade de Medicina da Universidade de Lisboa, Lisboa 1649-028, Portugal; dgcaldeira{at}hotmail.com

Footnotes

  • Contributors DC and BSR contributed to the concept and design of the study and extraction, analysis and interpretation of the data, wrote the first draft of the manuscript, critically revised the manuscript, and gave final approval of the submitted manuscript. CD contributed to the concept and design of the study and interpretation of the data, critically revised the manuscript, and gave final approval of the submitted manuscript. JC, JJF and FJP contributed to interpretation of data, critically revised the manuscript and gave final approval of the submitted manuscript.

  • Funding statement The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests JJF had speaker and consultant fees with GlaxoSmithKline, Novartis, TEVA, Lundbeck, Solvay, Abbott, Bial, Merck-Serono, Grunenthal, and Merck Sharp and Dohme; FJP had consultant and speaker fees with Astra Zeneca, Bayer, BMS, Boehringer Ingelheim and Daiichi Sankyo. DC has participated in educational meetings and/or attended conferences or symposia with Bristol-Myers Squibb, Bayer, Boehringer Ingelheim, Daiichi Sankyo, Merck Serono, Ferrer, Pfizer, Novartis and Roche.

  • Patient and public involvement statement This research was done without patient involvement. Patients were not invited to comment on the study design and were not consulted to develop patient relevant outcomes or interpret the results. Patients were not invited to contribute to the writing or editing of this document for readability or accuracy.

  • Patient consent for publication Not required.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data availability statement All data relevant to the study are included in the article or uploaded as supplementary information.

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Footnotes

  • Contributors DC and BSR contributed to the concept and design of the study and extraction, analysis and interpretation of the data, wrote the first draft of the manuscript, critically revised the manuscript, and gave final approval of the submitted manuscript. CD contributed to the concept and design of the study and interpretation of the data, critically revised the manuscript, and gave final approval of the submitted manuscript. JC, JJF and FJP contributed to interpretation of data, critically revised the manuscript and gave final approval of the submitted manuscript.

  • Funding statement The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests JJF had speaker and consultant fees with GlaxoSmithKline, Novartis, TEVA, Lundbeck, Solvay, Abbott, Bial, Merck-Serono, Grunenthal, and Merck Sharp and Dohme; FJP had consultant and speaker fees with Astra Zeneca, Bayer, BMS, Boehringer Ingelheim and Daiichi Sankyo. DC has participated in educational meetings and/or attended conferences or symposia with Bristol-Myers Squibb, Bayer, Boehringer Ingelheim, Daiichi Sankyo, Merck Serono, Ferrer, Pfizer, Novartis and Roche.

  • Patient and public involvement statement This research was done without patient involvement. Patients were not invited to comment on the study design and were not consulted to develop patient relevant outcomes or interpret the results. Patients were not invited to contribute to the writing or editing of this document for readability or accuracy.

  • Patient consent for publication Not required.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data availability statement All data relevant to the study are included in the article or uploaded as supplementary information.

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