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A Meta-Analysis of Studies Investigating the Effects of Occupational Lead Exposure on Thyroid Hormones
  • Published Date:
    Apr 20 2016
  • Source:
    Am J Ind Med. 59(7):583-590.


Public Access Version Available on: July 01, 2017 information icon
Please check back on the date listed above.
Details:
  • Personal Authors:
  • Pubmed ID:
    27094769
  • Pubmed Central ID:
    PMC4934017
  • Description:
    Introduction

    Investigations of the effects of occupational exposure to lead on the concentrations of thyroid hormones in the blood have not produced consistent results. A meta-analysis was performed to assess the effect of occupational exposure to lead on thyroid hormone concentrations using the results from published studies.

    Methods

    Group means from studies of the thyroid function of persons occupationally exposed to lead were used in a meta-analysis. Differences between the control and exposed groups, and the slopes between thyroid hormone concentrations and log10 blood lead concentrations or duration of exposure to lead were estimated using mixed models. The hormones analyzed were thyroid stimulating hormone, total and free thyroxine, and total and free triiodothyronine.

    Results

    No differences in mean thyroid hormone concentrations were found between the exposed and control groups. No relationships were found between blood lead or the duration of exposure to lead and thyroid hormone concentrations.

    Conclusion

    The results of the analysis do not provide evidence for an effect of occupational lead exposure on thyroid function in men.

  • Document Type:
  • Collection(s):
  • Funding:
    CC999999/Intramural CDC HHS/United States
  • Supporting Files:
    No Additional Files
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