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Response to: ‘Mortality in ANCA-associated vasculitis: mission incomplete’ by Moiseev et al
  1. Juan Antonio Avina-Zubieta1,2,
  2. Natasha Dehghan2,
  3. Ju Ann Tan1,3
  1. 1 Arthritis Research Canada, Vancouver, British Columbia, Canada
  2. 2 Division of Rheumatology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
  3. 3 Department of Rheumatology, Western Health, Footscray, Victoria, Australia
  1. Correspondence to Dr Juan Antonio Avina-Zubieta, Arthritis Research Canada, Vancouver, British Columbia, V5Z 1L7, Canada; azubieta{at}

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We thank Professor Moiseev and colleagues for their comments on our article.1 We acknowledge the limitations of including observational studies in our meta-analysis. We also agree that observational studies often suffer from confounding and selection biases, limiting the comparability between studies.2 This was also reflected by the …

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  • Competing interests None declared.

  • Provenance and peer review Commissioned; internally peer reviewed.

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