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Related Experiment Videos

Visual display units and pregnancy outcome: a prospective study

R S Bramwell1, M J Davidson

  • 1University of Central Lancashire, Preston, UK.

Journal of Psychosomatic Obstetrics and Gynaecology
|September 1, 1993
PubMed
Summary

This study found no adverse effects of visual display unit (VDU) use on pregnancy outcomes or infertility in a prospective investigation. Retrospective data suggesting a link was likely due to recall bias, not actual VDU impact.

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Area of Science:

  • Occupational Health
  • Reproductive Epidemiology
  • Human-Computer Interaction

Background:

  • Concerns exist regarding potential reproductive risks for women working with visual display units (VDUs).
  • Previous retrospective studies suggested a possible link between VDU use and adverse pregnancy outcomes, potentially influenced by recall bias.

Purpose of the Study:

  • To prospectively investigate the impact of visual display unit (VDU) use on pregnancy outcomes.
  • To assess the relationship between VDU work, ergonomics, stress, and infertility.
  • To clarify the role of recall bias in previous findings.

Main Methods:

  • Prospective cohort study design.
  • Inclusion of ergonomic and stress variables alongside VDU exposure assessment.

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  • Evaluation of pregnancy outcomes and infertility incidence.

    • Main Results:

    • Prospective data showed no evidence of adverse effects of VDU use on pregnancy outcomes in the study sample.
    • No association was found between VDU use and infertility.
    • Recall bias likely explained the apparent relationship observed in earlier retrospective studies.

    Conclusions:

    • Work with visual display units (VDUs) does not appear to pose a risk to pregnancy outcomes or fertility.
    • Prospective methodology is crucial for accurately assessing occupational health risks and avoiding recall bias.
    • Further research should focus on other occupational or environmental factors influencing reproductive health.