The Role of Exposure to Phthalates from Polyvinyl Chloride Products in the Development of Asthma and Allergies: A Systematic Review and Meta-analysis
2008

Phthalates from PVC Products and Their Link to Asthma and Allergies

Sample size: 41 publication 10 minutes Evidence: moderate

Author Information

Author(s): Jaakkola Jouni J.K., Knight Trudy L.

Primary Institution: Institute of Occupational and Environmental Medicine, University of Birmingham, Birmingham, United Kingdom

Hypothesis

Does exposure to phthalates from PVC products contribute to the development of asthma and allergies?

Conclusion

High levels of phthalates from PVC products can modulate the immune response and are associated with the development of asthma and allergies.

Supporting Evidence

  • Studies showed associations between PVC fumes and asthma symptoms in adults.
  • Children exposed to PVC materials at home had higher risks of asthma and allergies.
  • Meta-analysis indicated a summary odds ratio of 1.55 for asthma related to PVC exposure.

Takeaway

Phthalates in plastic can make people more likely to get asthma and allergies, especially if they are around these chemicals a lot.

Methodology

A systematic review and meta-analysis of studies on the respiratory and allergic effects of phthalates from PVC products.

Potential Biases

Potential confounding factors related to asthma and allergies were not fully addressed.

Limitations

The lack of objective exposure information limits the epidemiologic data.

Participant Demographics

The review included studies on both adults and children, with a focus on occupational and residential exposures.

Statistical Information

P-Value

p<0.05

Confidence Interval

95% CI, 1.18–2.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1289/ehp.10846

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