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Meta-Analysis
. 2008 Jul;116(7):845-53.
doi: 10.1289/ehp.10846.

The role of exposure to phthalates from polyvinyl chloride products in the development of asthma and allergies: a systematic review and meta-analysis

Jouni J K Jaakkola  1 , Trudy L Knight
Affiliations
Meta-Analysis

The role of exposure to phthalates from polyvinyl chloride products in the development of asthma and allergies: a systematic review and meta-analysis

Jouni J K Jaakkola et al. Environ Health Perspect. 2008 Jul.

Abstract

Background: Phthalates from polyvinyl chloride (PVC) plastics may have adverse effects on airways and immunologic systems, but the evidence has not been reviewed systematically.

Objective: We reviewed the evidence for the role of exposure to phthalates from PVC products in the development of asthma and allergies.

Methods: We conducted a Medline database search (1950 through May 2007) for relevant studies on the respiratory and allergic effects of exposure to phthalates from PVC products.

Results: We based this review on 27 human and 14 laboratory toxicology studies. Two mouse inhalation experiments indicated that mono-2-ethylhexyl phthalate (MEHP) has the ability to modulate the immune response to exposure to a coallergen. The data suggested a no observed effect level of 30 microg MEHP/m3, calculated to be below the estimated level of human exposure in common environments. Case reports and series (n = 9) identified and verified cases of asthma that were very likely caused by fumes emitted from PVC film. Epidemiologic studies in adults (n = 10), mostly small studies in occupational settings, showed associations between heated PVC fumes and asthma and respiratory symptoms; studies in children (n = 5) showed an association between PVC surface materials in the home and the risk of asthma [fixed-effects model: summary odds ratio (OR), 1.55; 95% confidence interval (CI), 1.18-2.05; four studies] and allergies (OR, 1.32; 95% CI, 1.09-1.60; three studies).

Conclusions: High levels of phthalates from PVC products can modulate the murine immune response to a coallergen. Heated PVC fumes possibly contribute to development of asthma in adults. Epidemiologic studies in children show associations between indicators of phthalate exposure in the home and risk of asthma and allergies. The lack of objective exposure information limits the epidemiologic data.

Keywords: allergy; asthma; phthalates; polyvinyl chloride.

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Figures

Figure 1
Figure 1
Chemical formulas of phthalates.
Figure 2
Figure 2
A framework for causal inference illustrating a relevant source–emission–concentration–exposure–effect pathway.
See this image and copyright information in PMC

References

    1. Adibi JJ, Perera FP, Jedrychowski W, Camann DE, Barr D, Jacek R, et al. Prenatal exposures to phthalates among women in New York City and Krakow, Poland. Environ Health Perspect. 2003;111:1719–1722. - PMC - PubMed
    1. Andrasch RH, Bardana EJ., Jr Thermoactivated price-label fume intolerance. A cause of meat-wrapper’s asthma. JAMA. 1976;235(9):937. - PubMed
    1. Andrasch RH, Bardana EJ, Jr, Koster F, Pirofsky B. Clinical and bronchial provocation studies in patients with meatwrappers’ asthma. J Allergy Clin Immunol. 1976;58(2):291–298. - PubMed
    1. Bally MB, Opheim DJ, Shertzer HG. Di-(2-ethylhexyl) phthalate enhances the release of lysosomal enzymes from alveolar macrophages during phagocytosis. Toxicology. 1980;18:49–60. - PubMed
    1. Bornehag CG, Sundell J, Hägerhed-Engman L, Sigsgaard T, Janson S, Aberg N, et al. ‘Dampness’ at home and its association with airway, nose, and skin symptoms among 10,851 preschool children in Sweden: a cross-sectional study. Indoor Air. 2005;15(suppl 10):48–55. - PubMed