Presentations to Emergency Departments for COPD: A Time Series Analysis

Background. Chronic obstructive pulmonary disease (COPD) is a common respiratory condition characterized by progressive dyspnea and acute exacerbations which may result in emergency department (ED) presentations. This study examines monthly rates of presentations to EDs in one Canadian province. Met...

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Main Authors: Rhonda J. Rosychuk, Erik Youngson, Brian H. Rowe
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Canadian Respiratory Journal
Online Access:http://dx.doi.org/10.1155/2016/1382434
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author Rhonda J. Rosychuk
Erik Youngson
Brian H. Rowe
author_facet Rhonda J. Rosychuk
Erik Youngson
Brian H. Rowe
author_sort Rhonda J. Rosychuk
collection DOAJ
description Background. Chronic obstructive pulmonary disease (COPD) is a common respiratory condition characterized by progressive dyspnea and acute exacerbations which may result in emergency department (ED) presentations. This study examines monthly rates of presentations to EDs in one Canadian province. Methods. Presentations for COPD made by individuals aged ≥55 years during April 1999 to March 2011 were extracted from provincial databases. Data included age, sex, and health zone of residence (North, Central, South, and urban). Crude rates were calculated. Seasonal autoregressive integrated moving average (SARIMA) time series models were developed. Results. ED presentations for COPD totalled 188,824 and the monthly rate of presentation remained relatively stable (from 197.7 to 232.6 per 100,000). Males and seniors (≥65 years) comprised 52.2% and 73.7% of presentations, respectively. The ARIMA1,0,0×1,0,112 model was appropriate for the overall rate of presentations and for each sex and seniors. Zone specific models showed relatively stable or decreasing rates; the North zone had an increasing trend. Conclusions. ED presentation rates for COPD have been relatively stable in Alberta during the past decade. However, their increases in northern regions deserve further exploration. The SARIMA models quantified the temporal patterns and can help planning future health care service needs.
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spelling doaj-art-faf1242e72a24043b9bdec2393b7b2452025-02-03T01:31:16ZengWileyCanadian Respiratory Journal1198-22411916-72452016-01-01201610.1155/2016/13824341382434Presentations to Emergency Departments for COPD: A Time Series AnalysisRhonda J. Rosychuk0Erik Youngson1Brian H. Rowe2Department of Pediatrics, University of Alberta, Edmonton, AB, T6G 1C9, CanadaPatient Health Outcomes Research and Clinical Effectiveness Unit, University of Alberta, Edmonton, AB, T6G 2M8, CanadaDepartment of Emergency Medicine, University of Alberta, Edmonton, AB, T6G 2R7, CanadaBackground. Chronic obstructive pulmonary disease (COPD) is a common respiratory condition characterized by progressive dyspnea and acute exacerbations which may result in emergency department (ED) presentations. This study examines monthly rates of presentations to EDs in one Canadian province. Methods. Presentations for COPD made by individuals aged ≥55 years during April 1999 to March 2011 were extracted from provincial databases. Data included age, sex, and health zone of residence (North, Central, South, and urban). Crude rates were calculated. Seasonal autoregressive integrated moving average (SARIMA) time series models were developed. Results. ED presentations for COPD totalled 188,824 and the monthly rate of presentation remained relatively stable (from 197.7 to 232.6 per 100,000). Males and seniors (≥65 years) comprised 52.2% and 73.7% of presentations, respectively. The ARIMA1,0,0×1,0,112 model was appropriate for the overall rate of presentations and for each sex and seniors. Zone specific models showed relatively stable or decreasing rates; the North zone had an increasing trend. Conclusions. ED presentation rates for COPD have been relatively stable in Alberta during the past decade. However, their increases in northern regions deserve further exploration. The SARIMA models quantified the temporal patterns and can help planning future health care service needs.http://dx.doi.org/10.1155/2016/1382434
spellingShingle Rhonda J. Rosychuk
Erik Youngson
Brian H. Rowe
Presentations to Emergency Departments for COPD: A Time Series Analysis
Canadian Respiratory Journal
title Presentations to Emergency Departments for COPD: A Time Series Analysis
title_full Presentations to Emergency Departments for COPD: A Time Series Analysis
title_fullStr Presentations to Emergency Departments for COPD: A Time Series Analysis
title_full_unstemmed Presentations to Emergency Departments for COPD: A Time Series Analysis
title_short Presentations to Emergency Departments for COPD: A Time Series Analysis
title_sort presentations to emergency departments for copd a time series analysis
url http://dx.doi.org/10.1155/2016/1382434
work_keys_str_mv AT rhondajrosychuk presentationstoemergencydepartmentsforcopdatimeseriesanalysis
AT erikyoungson presentationstoemergencydepartmentsforcopdatimeseriesanalysis
AT brianhrowe presentationstoemergencydepartmentsforcopdatimeseriesanalysis