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Asthma and respiratory symptoms in hospital workers related to dampness and biological contaminants.

Authors
Cox-Ganser-JM; Rao-CY; Park-J-H; Schumpert-JC; Kreiss-K
Source
Indoor Air 2009 Aug; 19(4):280-290
NIOSHTIC No.
20035749
Abstract
The National Institute for Occupational Safety and Health investigated respiratory symptoms and asthma in relation to damp indoor environments in employees of two hospitals. A cluster of six work-related asthma cases from one hospital department, whose symptoms arose during a time of significant water incursions, led us to conduct a survey of respiratory health in 1171/1834 employees working in the sentinel cases hospital and a nearby hospital without known indoor environmental concerns. We carried out observational assessment of dampness, air, chair, and floor dust sampling for biological contaminants, and investigation of exposure-response associations for about 500 participants. Many participants with post-hire onset asthma reported diagnosis dates in a period of water incursions and renovations. Post-hire asthma and work-related lower respiratory symptoms were positively associated with the dampness score. Work-related lower respiratory symptoms showed monotonically increasing odds ratios with ergosterol, a marker of fungal biomass. Other fungal and bacterial indices, particle counts, cat allergen and latex allergen were associated with respiratory symptoms. Our data imply new-onset of asthma in relation to water damage, and indicate that work-related respiratory symptoms in hospital workers may be associated with diverse biological contaminants.
Keywords
Biohazards; Biological-effects; Biological-monitoring; Breathing; Bronchial-asthma; Environmental-exposure; Environmental-health; Epidemiology; Exposure-assessment; Exposure-levels; Exposure-methods; Humidity; Indoor environment; Indoor-air-pollution; Indoor-environmental-quality; Inhalation-studies; Occupational-exposure; Occupational-health; Occupational-respiratory-disease; Pulmonary-congestion; Pulmonary-function; Pulmonary-system; Pulmonary-system-disorders; Respiratory-hypersensitivity; Respiratory-infections; Respiratory-irritants; Respiratory-system-disorders; Statistical-analysis; Work-environment; Worker-health; Work-performance; Work-practices; Author Keywords: Building-related asthma; Indoor environmental quality; Mold; Ergosterol; Healthcare workers; Dampness
Contact
JM Cox-Ganser, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Field Studies Branch, Division of Respiratory Disease Studies, M/S 2800, 1095 Willowdale Rd, Morgantown, WV 26505
CODEN
INAIE5
Publication Date
20090801
Document Type
Journal Article
Email Address
Jcoxganser@cdc.gov
Fiscal Year
2009
NTIS Accession No.
NTIS Price
Issue of Publication
1
ISSN
0905-6947
NIOSH Division
DRDS
Source Name
Indoor Air
State
WV; MT
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