The economic burden of asthma and the role of co-morbidities

Project number: 
Approval date: 
Thursday, November 5, 2015
Principal Investigator: 
University of British Columbia (UBC)
Funding Agency: 
Not Available
Datasets requested: 
Consolidation registry (Ministry of Health)
Deaths (BC Vital Statistics Agency)
Consolidation file (BC Ministry of Health)
Consolidation - demographic (Ministry of Health)
Medical Services Plan (BC Ministry of Health)
consolidation - census geocodes
Hospital Separations (BC Ministry of Health)
Research objective: 


1) Estimate the excess costs of asthma in BC;

2) Estimate the excess costs of co-morbidities in patients with asthma;

3) Estimate the trend in the excess costs of cost of asthma over time;

4) Estimate the contribution of inpatient, outpatient, and medication costs to the excess economic burden of asthma and their co-morbidities.


1. Compared to the general population, individuals with asthma incur more excess direct medical costs due to co-morbidities than individuals without asthma;

2. The overall excess costs of asthma has increased in the province;

3. The per-patient cost of asthma has decreased.


Journal Publication

  • Chen W, FitzGerald JM, Lynd LD, Sin DD, Sadatsafavi M. Long-Term Trajectories of Mild Asthma in Adulthood and Risk Factors of Progression. J Allergy Clin
    Immunol Pract. 2018 Nov - Dec;6(6):2024-2032.e5. doi: 10.1016/j.jaip.2018.04.027.
    Epub 2018 May 7. PubMed PMID: 29746917.
  • Chen W, Lynd LD, FitzGerald JM, Marra CA, Balshaw R, To T, Tavakoli H, Sadatsafavi M; Canadian Respiratory Research Network. Excess medical costs in
    patients with asthma and the role of comorbidity. Eur Respir J. 2016
    Dec;48(6):1584-1592. doi: 10.1183/13993003.01141-2016. Epub 2016 Oct 6. PubMed
    PMID: 27824603.
  • Tavakoli H, FitzGerald JM, Chen W, Lynd L, Kendzerska T, Aaron S, Gershon A, Marra C, Sadatsafavi M; Canadian Respiratory Research Network. Ten-year trends in
    direct costs of asthma: a population-based study. Allergy. 2017
    Feb;72(2):291-299. doi: 10.1111/all.12993. Epub 2016 Aug 24. PubMed PMID:

Page last revised: September 2, 2019