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Spirometry reference values for nonexposed blue-collar workers.

M Petersen, J Hankinson

    Journal of Occupational Medicine. : Official Publication of the Industrial Medical Association
    |September 1, 1985
    PubMed
    Summary
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    This study established a reference group of healthy blue-collar workers to aid in occupational lung disease research. Their pulmonary function data provides a baseline for comparing exposed populations and ensuring study validity.

    Area of Science:

    • Occupational Medicine
    • Pulmonary Physiology
    • Epidemiology

    Background:

    • Epidemiologic studies of occupationally related lung disease necessitate external reference groups for comparison.
    • Establishing a reliable reference group is crucial for accurate assessment of occupational pulmonary exposures.

    Purpose of the Study:

    • To create a reference group of blue-collar workers with no significant occupational pulmonary exposure.
    • To develop prediction equations for pulmonary function indices for this reference group.
    • To provide a method for comparing study populations against this established nonexposed reference group.

    Main Methods:

    • Selected blue-collar workers with no apparent adverse occupational pulmonary exposure.
    • Conducted simple spirometry, administered standard questionnaires, and performed standard chest roentgenograms.

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  • Established prediction equations for six pulmonary function indices.

    • Main Results:

    • Prediction equations were successfully developed for six key pulmonary function indices.
    • A method was established for comparing study groups against the nonexposed reference group.
    • The reference group, when filtered for asymptomatic nonsmokers with normal roentgenograms, showed similarity to published data for normal groups, indicating minimal bias.

    Conclusions:

    • The established reference group and prediction equations are suitable for use in epidemiologic research on occupationally related lung disease.
    • The methodology allows for robust comparison of study populations against a validated nonexposed external group.
    • The findings support the validity and lack of significant bias in the constructed reference cohort for pulmonary function assessment.