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Cumulative Occupational Exposures and Lung-Function Decline in Two Large General-Population Cohorts.

Theodore Lytras1,2, Anna Beckmeyer-Borowko3,4, Manolis Kogevinas1,2,5,6

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Occupational exposures to biological dust, mineral dust, and metals accelerate lung function decline, similar to smoking. These findings underscore the importance of workplace exposure controls for respiratory health.

Keywords:
longitudinal studieslung functionoccupational diseaseoccupational exposurespirometry

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Area of Science:

  • Occupational Health
  • Pulmonary Medicine
  • Environmental Epidemiology

Background:

  • Longitudinal studies on occupational exposures and lung function decline are limited.
  • Assessing long-term effects in general populations requires extensive follow-up.
  • Understanding workplace risks is crucial for public health.

Purpose of the Study:

  • To investigate the association between occupational exposures and lung function decline.
  • To analyze data from two large European cohorts: ECRHS and SAPALDIA.
  • To identify specific workplace exposures linked to accelerated lung function decline.

Main Methods:

  • Utilized data from 17,833 participants across ECRHS and SAPALDIA cohorts.
  • Employed spirometry to measure lung function (FEV1 and FVC) over ~20 years.
  • Linked job histories to a job-exposure matrix for cumulative exposure assessment.

Main Results:

  • Accelerated decline in FEV1 and FEV1/FVC ratio observed with exposure to biological dust, mineral dust, and metals.
  • Magnitude of decline comparable to long-term smoking effects.
  • No significant effect modification by sex or smoking status.

Conclusions:

  • Occupational exposures are an independent risk factor for lung function decline.
  • Workplace interventions are necessary to mitigate respiratory health risks.
  • Findings reinforce the need for controlling dust and metal exposures in various industries.