The Burden of Illness Related to Chronic Obstructive Pulmonary Disease Exacerbations in Québec, Canada

Background. Chronic obstructive pulmonary disease (COPD) prevalence in Canada has risen over time. COPD-related exacerbations contribute to the increased health care utilization (HCU) in this population. This study investigated the impact of exacerbations on COPD-related HCU. Methods. This retrospec...

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Main Authors: Tam Dang-Tan, Shiyuan Zhang, Ruben V. Tavares, Melissa Stutz, Afisi S. Ismaila, Julie Vaillancourt, Diane Corriveau, Richard H. Stanford, Xiwu Lin, Gilbert A. Nadeau, Alexander Simidchiev, Daria Parsons, John S. Sampalis
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Canadian Respiratory Journal
Online Access:http://dx.doi.org/10.1155/2017/8184915
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author Tam Dang-Tan
Shiyuan Zhang
Ruben V. Tavares
Melissa Stutz
Afisi S. Ismaila
Julie Vaillancourt
Diane Corriveau
Richard H. Stanford
Xiwu Lin
Gilbert A. Nadeau
Alexander Simidchiev
Daria Parsons
John S. Sampalis
author_facet Tam Dang-Tan
Shiyuan Zhang
Ruben V. Tavares
Melissa Stutz
Afisi S. Ismaila
Julie Vaillancourt
Diane Corriveau
Richard H. Stanford
Xiwu Lin
Gilbert A. Nadeau
Alexander Simidchiev
Daria Parsons
John S. Sampalis
author_sort Tam Dang-Tan
collection DOAJ
description Background. Chronic obstructive pulmonary disease (COPD) prevalence in Canada has risen over time. COPD-related exacerbations contribute to the increased health care utilization (HCU) in this population. This study investigated the impact of exacerbations on COPD-related HCU. Methods. This retrospective observational cohort study used patient data from the Québec provincial health insurance databases. Eligible patients with a new HCU claim with a diagnostic billing for COPD during 2001–2010 were followed until March 31, 2011. Exacerbation rates and time to first exacerbation were assessed. Unadjusted analyses and multivariable models compared the rate of HCU by exacerbation classification (any [moderate/severe], moderate, or severe). Results. The exacerbation event rate in patients with an exacerbation was 34.3 events/100 patient-years (22.7 for moderate exacerbations and 11.6 for severe exacerbations). Median time to first exacerbation of any classification was 37 months. In unadjusted analyses, COPD-related HCU significantly increased with exacerbation severity. In the multivariable, HCU rates were significantly higher after exacerbation versus before exacerbation (p<0.01) for patients with an exacerbation or moderate exacerbations. For severe exacerbations, general practitioner, respiratory specialist, emergency room, and hospital visits were significantly higher after exacerbation versus before exacerbation (p<0.001). Conclusions. Exacerbations were associated with increased HCU, which was more pronounced for patients with severe exacerbations. Interventions to reduce the risk of exacerbations in patients with COPD may reduce disease burden.
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spelling doaj-art-2884f883900d450694172db2dab9e6ac2025-02-03T00:58:53ZengWileyCanadian Respiratory Journal1198-22411916-72452017-01-01201710.1155/2017/81849158184915The Burden of Illness Related to Chronic Obstructive Pulmonary Disease Exacerbations in Québec, CanadaTam Dang-Tan0Shiyuan Zhang1Ruben V. Tavares2Melissa Stutz3Afisi S. Ismaila4Julie Vaillancourt5Diane Corriveau6Richard H. Stanford7Xiwu Lin8Gilbert A. Nadeau9Alexander Simidchiev10Daria Parsons11John S. Sampalis12GlaxoSmithKline, Research Triangle Park, Durham, NC, USAGlaxoSmithKline, Mississauga, ON, CanadaGlaxoSmithKline, Mississauga, ON, CanadaJSS Medical Research Inc., Saint Laurent, QC, CanadaGlaxoSmithKline, Research Triangle Park, Durham, NC, USAJSS Medical Research Inc., Saint Laurent, QC, CanadaGlaxoSmithKline, Mississauga, ON, CanadaGlaxoSmithKline, Research Triangle Park, Durham, NC, USAGlaxoSmithKline, Collegeville, PA, USAGlaxoSmithKline, Mississauga, ON, CanadaGlaxoSmithKline, Mississauga, ON, CanadaJSS Medical Research Inc., Saint Laurent, QC, CanadaJSS Medical Research Inc., Saint Laurent, QC, CanadaBackground. Chronic obstructive pulmonary disease (COPD) prevalence in Canada has risen over time. COPD-related exacerbations contribute to the increased health care utilization (HCU) in this population. This study investigated the impact of exacerbations on COPD-related HCU. Methods. This retrospective observational cohort study used patient data from the Québec provincial health insurance databases. Eligible patients with a new HCU claim with a diagnostic billing for COPD during 2001–2010 were followed until March 31, 2011. Exacerbation rates and time to first exacerbation were assessed. Unadjusted analyses and multivariable models compared the rate of HCU by exacerbation classification (any [moderate/severe], moderate, or severe). Results. The exacerbation event rate in patients with an exacerbation was 34.3 events/100 patient-years (22.7 for moderate exacerbations and 11.6 for severe exacerbations). Median time to first exacerbation of any classification was 37 months. In unadjusted analyses, COPD-related HCU significantly increased with exacerbation severity. In the multivariable, HCU rates were significantly higher after exacerbation versus before exacerbation (p<0.01) for patients with an exacerbation or moderate exacerbations. For severe exacerbations, general practitioner, respiratory specialist, emergency room, and hospital visits were significantly higher after exacerbation versus before exacerbation (p<0.001). Conclusions. Exacerbations were associated with increased HCU, which was more pronounced for patients with severe exacerbations. Interventions to reduce the risk of exacerbations in patients with COPD may reduce disease burden.http://dx.doi.org/10.1155/2017/8184915
spellingShingle Tam Dang-Tan
Shiyuan Zhang
Ruben V. Tavares
Melissa Stutz
Afisi S. Ismaila
Julie Vaillancourt
Diane Corriveau
Richard H. Stanford
Xiwu Lin
Gilbert A. Nadeau
Alexander Simidchiev
Daria Parsons
John S. Sampalis
The Burden of Illness Related to Chronic Obstructive Pulmonary Disease Exacerbations in Québec, Canada
Canadian Respiratory Journal
title The Burden of Illness Related to Chronic Obstructive Pulmonary Disease Exacerbations in Québec, Canada
title_full The Burden of Illness Related to Chronic Obstructive Pulmonary Disease Exacerbations in Québec, Canada
title_fullStr The Burden of Illness Related to Chronic Obstructive Pulmonary Disease Exacerbations in Québec, Canada
title_full_unstemmed The Burden of Illness Related to Chronic Obstructive Pulmonary Disease Exacerbations in Québec, Canada
title_short The Burden of Illness Related to Chronic Obstructive Pulmonary Disease Exacerbations in Québec, Canada
title_sort burden of illness related to chronic obstructive pulmonary disease exacerbations in quebec canada
url http://dx.doi.org/10.1155/2017/8184915
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