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An official American Thoracic Society statement: work-exacerbated asthma.

Authors
Henneberger-PK; Redlich-CA; Callahan-DB; Harber-P; Lemière-C; Martin-J; Tarlo-SM; Vandenplas-O; Torén-K
Source
Am J Respir Crit Care Med 2011 Aug; 184(3):368-378
NIOSHTIC No.
20039385
Abstract
Rationale: Occupational exposures can contribute to the exacerbation as well as the onset of asthma. However, work-exacerbated asthma (WEA) has received less attention than occupational asthma (OA) that is caused by work. Objectives: The purpose of this Statement is to summarize current knowledge about the descriptive epidemiology, clinical characteristics, and management and treatment of WEA; propose a case definition for WEA; and discuss needs for prevention and research. Methods: Information about WEA was identified primarily by systematic searches of the medical literature. Statements about prevention and research needs were reached by consensus. Measurements and Main Results: WEA is defined as the worsening of asthma due to conditions at work. WEA is common, with a median prevalence of 21.5 percent among adults with asthma. Different types of agents or conditions at work may exacerbate asthma. WEA cases with persistent work-related symptoms can have clinical characteristics (level of severity, medication needs) and adverse socioeconomic outcomes (unemployment, reduction in income) similar to those of OA cases. Compared with adults with asthma unrelated to work, WEA cases report more days with symptoms, seek more medical care, and have a lower quality of life. WEA should be considered in any patient with asthma that is getting worse or who has work-related symptoms. Management of WEA should focus on reducing work exposures and optimizing standard medical management, with a change in jobs only if these measures are not successful. Conclusions: WEA is a common and underrecognized adverse outcome resulting from conditions at work. Additional research is needed to improve the understanding of the risk factors for, and mechanisms and outcomes of, WEA, and to inform and evaluate preventive interventions.
Keywords
Respiratory-system-disorders; Pulmonary-system-disorders; Lung-disorders; Bronchial-asthma; Work-environment; Worker-health; Employee-exposure; Epidemiology; Disease-control; Disease-prevention; Work-operations; Work-practices; Author Keywords: asthma; occupational diseases; work-related asthma; exacerbation; work-exacerbated asthma
CODEN
AJCMED
Publication Date
20110801
Document Type
Journal Article
Fiscal Year
2011
NTIS Accession No.
NTIS Price
Issue of Publication
3
ISSN
1073-449X
NIOSH Division
DRDS
Source Name
American Journal of Respiratory and Critical Care Medicine
State
WV
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