Lung function not affected by asbestos exposure in workers with normal Computed Tomography scan

Am J Ind Med. 2017 May;60(5):422-431. doi: 10.1002/ajim.22717. Epub 2017 Mar 30.

Abstract

Background: It has been suggested that asbestos exposure affects lung function, even in the absence of asbestos-related pulmonary interstitial or pleural changes or emphysema.

Methods: We analyzed associations between well-known asbestos-related risk factors, such as individual cumulative asbestos exposure, and key lung function parameters in formerly asbestos-exposed power industry workers (N = 207) with normal CT scans. For this, we excluded participants with emphysema, fibrosis, pleural changes, or any combination of these.

Results: The lung function parameters of FVC, FEV1, DLCO/VA, and airway resistance were significantly associated with the burden of smoking, BMI and years since end of exposure (only DLCO/VA). However, they were not affected by factors directly related to amount (eg, cumulative exposure) or duration of asbestos exposure.

Conclusions: Our results confirm the well-known correlation between lung function, smoking habits, and BMI. However, we found no significant association between lung function and asbestos exposure.

Keywords: CT; MDCT; asbestos dust; asbestos exposure; lung function.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Analysis of Variance
  • Asbestos / adverse effects*
  • Body Mass Index
  • Dust
  • Germany
  • Humans
  • Lung / physiopathology*
  • Male
  • Middle Aged
  • Occupational Exposure / adverse effects*
  • Respiratory Function Tests
  • Risk Factors
  • Smoking / adverse effects*
  • Smoking Cessation
  • Tomography, X-Ray Computed
  • Vital Capacity

Substances

  • Dust
  • Asbestos