Asthma Symptoms and Specific IgE Levels among Toluene Diisocyanate (TDI) Exposed Workers in Tehran, Iran

Toluene diisocyanate (TDI) is an imperative chemical substance used in the production of polyurethane foams, elastomers, paints and coatings that cause a variety of health problems in workers who are exposed in work places. This study aimed to determine the asthma symptoms and serum specific IgE lev...

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Published in:Iranian journal of public health 2013-04, Vol.42 (4), p.397-401
Main Authors: Sharifi, Laleh, Karimi, Akram, Shokouhi Shoormasti, Raheleh, Miri, Sara, Heydar Nazhad, Hassan, Bokaie, Saied, Fazlollahi, Mohammad Reza, Sadeghniiat Haghighi, Khosro, Pourpak, Zahra, Moin, Mostafa
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Language:English
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Allergies
Asthma
Asthma symptoms
IgE
Iran
Mortality
Occupational safety
Original
Toluene diisocyanate (TDI)
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container_issue 4
container_start_page 397
container_title Iranian journal of public health
container_volume 42
creator Sharifi, Laleh
Karimi, Akram
Shokouhi Shoormasti, Raheleh
Miri, Sara
Heydar Nazhad, Hassan
Bokaie, Saied
Fazlollahi, Mohammad Reza
Sadeghniiat Haghighi, Khosro
Pourpak, Zahra
Moin, Mostafa
description Toluene diisocyanate (TDI) is an imperative chemical substance used in the production of polyurethane foams, elastomers, paints and coatings that cause a variety of health problems in workers who are exposed in work places. This study aimed to determine the asthma symptoms and serum specific IgE levels in TDI exposed workers and comparing the results with healthy control group. All the plants that use TDI in the manufacturing of paint and glue in the west of Tehran Province entered to the study and all the workers (550) completed modified initial questionnaire of the NIOSH, the questions were consisted of asthma symptoms. For each symptomatic exposed worker one healthy, sex and age matched control selected. Total IgE and Specific TDI IgE tests were done for each case and control groups. Among 550 TDI exposed workers, 26(4.7%) had asthma symptoms. Nine (34.6%) of symptomatic workers who were exposed to TDI were active cigarette consumer versus 3(11.5%) unexposed workers, P=0.049(CI= 0.953-17.29) OR=4.059. Nine (34.6%) workers had positive family history of atopy versus 1(3.8%) unexposed workers, P=0.0138 (CI= 1.45-305.41) OR=13.24. TDI specific IgE was found in 2 TDI exposed workers and 1 unexposed worker (P=0.5). Mean of total IgE was 339.05 in exposed workers (P=0.201). This study provides clinical and paraclinical data of workers exposed to TDI and points to a relation between atopy and smoking habit with asthma symptoms that offer preventing recommendations for TDI exposed workers and their heath administrators.
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subjects Allergies
Asthma
Asthma symptoms
IgE
Iran
Mortality
Occupational safety
Original
Toluene diisocyanate (TDI)
title Asthma Symptoms and Specific IgE Levels among Toluene Diisocyanate (TDI) Exposed Workers in Tehran, Iran
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