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Excessive longitudinal FEV1 decline and risks to future health: a case-control study
Mei Lin Wang1, Bipin H Avashia, John Wood
1Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia 26505, USA.
American Journal of Industrial Medicine
|October 24, 2009
Summary
Accelerated lung function decline, measured by forced expiratory volume in 1 second (FEV(1)) slopes, is linked to increased respiratory disease risk in chemical plant workers. These workers experienced significantly more adverse health outcomes over 10-30 years.
Area of Science:
- Occupational Health
- Pulmonology
- Epidemiology
Background:
- Accelerated loss of forced expiratory volume in 1 second (FEV(1)) is a key indicator of developing lung disease.
- Investigating FEV(1) decline in occupational settings is crucial for understanding long-term respiratory health impacts.
Purpose of the Study:
- To examine the association between accelerated FEV(1) decline and adverse health outcomes in chemical plant workers.
- To identify risks associated with rapid lung function loss in an industrial cohort over 10-30 years.
Main Methods:
- Longitudinal FEV(1) slopes were calculated using simple linear regression in 1,428 chemical plant workers.
- Cases with FEV(1) slopes below the 5th percentile were matched with controls.
- Matched pair statistics were employed to compare health outcomes.
Main Results:
- Workers with accelerated FEV(1) decline showed significantly higher rates of COPD or emphysema diagnosis (17.8% vs. 1.9%).
- Cases reported more frequent use of respiratory medications (24.3% vs. 4.7%), dyspnea (15% vs. 3.7%), and wheezing (10.3% vs. 1.9%).
Conclusions:
- Accelerated FEV(1) decline in chemical plant workers is strongly associated with increased incidence of adverse respiratory health conditions.
- This finding highlights the importance of monitoring lung function in occupational settings to prevent long-term disease.
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