Occupational Asthma in Subjects Occupationally Exposed to Herbal and Fruit Tea Dust
Open Access
- 1 June 2007
- journal article
- Published by Walter de Gruyter GmbH in Archives of Industrial Hygiene and Toxicology
- Vol. 58 (2), 211-221
- https://doi.org/10.2478/v10004-007-0016-4
Abstract
Occupational Asthma in Subjects Occupationally Exposed to Herbal and Fruit Tea Dust: We performed a cross-sectional study to detect occupational asthma (OA) in 63 subjects occupationally exposed to herbal and fruit tea dust and in 63 corresponding controls. The evaluation included a questionnaire, skin prick tests to workplace and common inhalant allergens, spirometry, and histamine challenge test. The evaluation of the work-relatedness of asthma in the exposed workers was based on serial peak expiratory flow rate (PEFR) measurements and bronchoprovocation tests. We found a higher prevalence of respiratory symptoms in the exposed workers, whereas spirometric parameters were significantly lower. The prevalence of sensitisation to allergens and of bronchial hyperresponsivenss (BHR) did not differ significantly between the groups. The prevalence of asthma was also similar in both groups (8.0 %vs. 6.4 %;P=0.540). Work-relatedness of symptoms was reported by all asthmatic tea workers and by no control with asthma. Significant work-related changes in PEFR diurnal variations and in non-specific BHR, suggesting allergic OA, were found in one tea worker with asthma (1.6 %). No specific workplace agent causing OA in the affected subject was identified. None of the tea workers with asthma met the criteria for medical case definition of the reactive airway dysfunction syndrome (RADS). Our data confirm workplace exposure to herbal and fruit tea dust as a risk factor for OA.Keywords
This publication has 28 references indexed in Scilit:
- Detection of asthma and chronic obstructive pulmonary disease in primary careEuropean Respiratory Journal, 2003
- Respiratory disorders and allergies in tea packersOccupational Medicine, 2001
- AGENTS, OLD AND NEW, CAUSING OCCUPATIONAL ASTHMAOccupational and Environmental Medicine, 2001
- Asthma-like symptoms, atopy, and bronchial responsiveness in furniture workersOccupational and Environmental Medicine, 1998
- Inhalation challenges with agents causing occupational asthmaEuropean Respiratory Journal, 1997
- Ventilatory function of factory workers exposed to tea dustOccupational Medicine, 1997
- Respiratory Function and Immunologic Status in Workers Processing Dried Fruits and TeasAnnals of Allergy, Asthma & Immunology, 1996
- Screening For Occupational Asthma: A Word of CautionJournal of Occupational and Environmental Medicine, 1991
- Occupational asthma due to tea dust.Thorax, 1990
- Problems in the diagnosis of occupational asthmaRespiratory Medicine, 1987