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Int. J. Environ. Res. Public Health 2017, 14(1), 4; doi:10.3390/ijerph14010004

Exposure to Indoor Particulate Matter Worsens the Symptoms and Acute Exacerbations in Chronic Obstructive Pulmonary Disease Patients of Southwestern Taiwan: A Pilot Study

1
Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology (CGUST), Puzi City 613, Taiwan
2
Department of Respiratory Care, Chang Gung University of Science and Technology, Puzi City 613, Taiwan
3
Department of Nursing, Chang Gung University of Science and Technology, Chiayi Campus, Puzi City 613, Taiwan
4
Division of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Puzi City 613, Taiwan
5
Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
6
Department of Respiratory Care, Chang Gung University, Taoyuan 333, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Paul B. Tchounwou
Received: 22 October 2016 / Revised: 30 November 2016 / Accepted: 19 December 2016 / Published: 22 December 2016
(This article belongs to the Section Environmental Health)
View Full-Text   |   Download PDF [301 KB, uploaded 22 December 2016]

Abstract

Ambient particulate matter (PM) can trigger adverse reactions in the respiratory system, but less is known about the effect of indoor PM. In this longitudinal study, we investigated the relationships between indoor PM and clinical parameters in patients with moderate to very severe chronic obstructive pulmonary disease (COPD). Indoor air quality (PM2.5 and PM10 levels) was monitored in the patients’ bedroom, kitchen, living room, and front door at baseline and every two months for one year. At each home visit, the patients were asked to complete spirometry and questionnaire testing. Exacerbations were assessed by chart review and questionnaires during home visits. Generalized estimating equation (GEE) analysis (n = 83) showed that the level of wheezing was significantly higher in patients whose living room and kitchen had abnormal (higher than ambient air quality standards in Taiwan) PM2.5 and PM10 levels. Patients who lived in houses with abnormal outdoor PM2.5 levels had higher COPD Assessment Test scores (physical domain), and those who lived in houses with abnormal PM10 levels in the living room and kitchen had higher London Chest Activity of Daily Living scores. Increased PM levels were associated with worse respiratory symptoms and increased risk of exacerbation in patients with moderate to very severe COPD. View Full-Text
Keywords: indoor air quality; COPD assessment test; acute exacerbation of COPD (AECOPD); hospitalization; respiratory symptoms; chronic obstructive pulmonary disease indoor air quality; COPD assessment test; acute exacerbation of COPD (AECOPD); hospitalization; respiratory symptoms; chronic obstructive pulmonary disease
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Chi, M.-C.; Guo, S.-E.; Hwang, S.-L.; Chou, C.-T.; Lin, C.-M.; Lin, Y.-C. Exposure to Indoor Particulate Matter Worsens the Symptoms and Acute Exacerbations in Chronic Obstructive Pulmonary Disease Patients of Southwestern Taiwan: A Pilot Study. Int. J. Environ. Res. Public Health 2017, 14, 4.

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