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Menstrual function in workers exposed to toluene.

T P Ng1, S C Foo, T Yoong

  • 1Department of Community, Occupational, and Family Medicine, National University of Singapore.

British Journal of Industrial Medicine
|November 1, 1992
PubMed
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This study found no evidence linking toluene exposure to dysfunctional uterine bleeding in female audio speaker factory workers. While dysmenorrhoea was more frequent in highly exposed workers, the association with toluene remains uncertain due to other factors.

Area of Science:

  • Occupational Health
  • Reproductive Toxicology
  • Environmental Medicine

Background:

  • Toluene is a common industrial solvent with potential health effects.
  • Exposure to industrial chemicals can impact reproductive health in female workers.
  • Previous studies on toluene and menstrual disorders are limited.

Purpose of the Study:

  • To investigate the association between occupational toluene exposure and menstrual disorders in female production workers.
  • To compare menstrual disorder rates in workers with high toluene exposure, low exposure, and an external community control group.

Main Methods:

  • A cross-sectional study involving 231 female production workers with high toluene exposure (50-150 ppm) and 58 factory controls with low exposure (0-25 ppm).
  • An additional control group of 187 working-class women from maternal and child health centers was included.

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  • Data on menstrual and reproductive history were collected via structured personal interviews.

    • Main Results:

    • Rates of dysfunctional uterine bleeding (cycle irregularity, heavy/prolonged bleeding) were similar across all three groups.
    • Dysmenorrhoea (painful menstruation) appeared more frequent in highly toluene-exposed workers compared to the community control group.
    • No significant association was found between toluene exposure and dysfunctional uterine bleeding.

    Conclusions:

    • Occupational exposure to toluene at the levels studied does not appear to cause dysfunctional uterine bleeding.
    • The potential link between toluene exposure and dysmenorrhoea requires further investigation, considering confounding behavioral and work-related factors.