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Risk factors for allergy due to the two-spotted spider mite (Tetranychus urticae) among table grape farm workers

Cited 21 time in Web of Science Cited 29 time in Scopus
Authors
Jeebhay, M F; Baatjies, R; Chang, Y-S; Kim, Y-K; Kim, Y-Y; Major, V; Lopata, A L
Issue Date
2007-05-31
Publisher
Karger
Citation
Int Arch Allergy Immunol. 2007;144(2):143-9. Epub 2007 May 25.
Keywords
AdultAgricultural Workers' Diseases/*epidemiology/immunologyAgricultureAllergens/immunologyAnimalsAsthma/*epidemiology/immunologyFemaleHumansHypersensitivity, Immediate/*epidemiology/immunologyImmunoglobulin E/bloodMaleMiddle AgedPrevalenceRisk FactorsSkin TestsTetranychidae/*immunology*Vitis
Abstract
BACKGROUND: Recent studies have reported an increased prevalence of respiratory symptoms among farm workers. The aim of this study was to identify risk factors associated with spider mite allergy among table grape farm workers. METHODS: A cross-sectional study of 207 workers in table grape farms was conducted. Skin prick tests used extracts of 8 common aeroallergens, grape mould (Botrytis cinerea) and Tetranychus urticae. Specific IgE to T. urticae was quantified using ImmunoCAP (Phadia). Erythrocyte cholinesterase levels were determined using the Test-mate ChE Cholinesterase Test System (model 460). RESULTS: The average duration of employment of workers was 10 years and 12% were pesticide crop sprayers. Work-related wheeze (26%), ocular-nasal (24%) and urticaria/skin symptoms (14%) were more prevalent in the orchards. The prevalence of sensitization (skin prick test) was highest to T. urticae (22%) followed by house dust mite (16%), with 25% being atopic. The prevalence of allergy to T. urticae (skin reactivity and work-related symptoms) was 9.5%, with respiratory allergy (6%) more common than skin allergy (3%). Work-related ocular-nasal (OR = 4.9) and skin (OR = 3.7) symptoms were more commonly reported by pesticide crop sprayers. Workers with T. urticae-allergic rhino-conjunctivitis and probable asthma were more likely to be atopic, spray pesticides and have low (<30 U/g hemoglobin) erythrocyte cholinesterase levels. CONCLUSIONS: This study demonstrated that spider mite, T. urticae, is an important outdoor allergen among table grape farm workers. The increased risk of spider mite allergy appears to be related to high pesticide exposure among crop sprayers.
ISSN
1423-0097 (Electronic)
Language
English
URI
http://content.karger.com/produktedb/produkte.asp?typ=pdf&file=000103226

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=17536223

http://hdl.handle.net/10371/28459
DOI
https://doi.org/10.1159/000103226
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College of Medicine/School of Medicine (의과대학/대학원)Internal Medicine (내과학전공)Journal Papers (저널논문_내과학전공)
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