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Investigating asthma comorbidities: a systematic scoping review protocol
  1. Karim El Ferkh1,
  2. Bright Nwaru1,2,
  3. Chris Griffiths3,
  4. Aziz Sheikh1
  1. 1Asthma UK Centre for Applied Research, Centre for Medical Informatics, Usher Institute for Population Health Sciences, The University of Edinburgh, Edinburgh, UK
  2. 2School of Health Sciences, University of Tampere, Tampere, Finland
  3. 3Asthma UK Centre for Applied Research, Centre for Primary Care and Public Health, Blizard Institute, Queen Mary University of London, London, UK
  1. Correspondence to Karim El Ferkh; k.firikh{at}


Introduction Asthma is a common long-term disorder with a number of related comorbid conditions, which may affect asthma outcomes. There is a need for greater appreciation for understanding how these comorbidities interact with asthma in order to improve asthma outcomes.

Objectives To systematically identify and map out key asthma comorbidities.

Methods We will systematically search the following electronic databases: MEDLINE, EMBASE, ISI Web of Science, Cumulative Index to Nursing and Allied Health Literature (CINAHL), PsycINFO and Google Scholar. Additional literature will be identified by searching the reference list of identified eligible studies and by searching the repositories of international conference proceedings, including ISI Conference Proceeding Citation Index, and ZETOC (British Library).

Dissemination The findings from this systematic scoping review will be reported at scientific meetings and published in a peer-reviewed journal.

This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See:

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