Longitudinal Changes in Pulmonary Function and Respiratory Symptoms in Cotton Textile Workers: A 15-Yr Follow-Up Study

Details

• Personal Author:
  Christiani, David C. ; Dai H ; Eisen EA ; Olenchock, Stephen A. ; Pan L-D ; Sun B-X ; Wang X-R ; Wegman, David H. ; Zhang H-X
• Description:
  To evaluate the chronic effects of exposure to cotton dust, a 15-yr follow-up study in cotton textile workers was performed in Shanghai, China from 1981 to 1996. Testing occurred four times during the 15-yr period. The achieved follow-up rates were 76-88% of the original 447 cotton textile workers, and 70-85% of the original 472 silk textile workers (as a control group). Identical questionnaires, equipment, and methods were used throughout the study. The prevalence of byssinosis increased over time in cotton workers, with 15.3% at the last survey versus 7.6% at the baseline, whereas no byssinosis was found in silk workers. More workers in the cotton group consistently reported symptoms than in the silk group, although symptom reporting varied considerably from survey to survey. Cotton workers had small, but significantly greater, adjusted annual declines in FEV1 and FVC than did the silk workers. Years worked in cotton mills, high level of exposure to endotoxin, and across-shift drops in FEV1 were found to be significant determinants for longitudinal change in FEV1, after controlling for appropriate confounders. Furthermore, there were statistically significant associations between excessive loss of FEV1 and byssinosis, chest tightness at work, and chronic bronchitis in cotton workers. Workers who consistently (three or four of the surveys) reported byssinosis or chest tightness at work had a significantly greater 15-yr loss of FEV1. We conclude that long-term exposure to cotton dust is associated with chronic or permanent obstructive impairments. Consistent reporting of respiratory symptoms, including byssinosis and chest tightness at work is of value to predict the magnitude and severity of chronic impairments in textile workers. [Description provided by NIOSH]
• Subjects:
  Chronic Disease Cotton Fiber Dust Endotoxins Gossypium Irritants Manufacturing And Industrial Facilities Occupational Health Respiratory Tract Diseases Safety Textile Industry

  More +
• Keywords:
  Chronic-degenerative-diseases Cotton-dust Cotton-fibers Cotton-industry Cotton-mill-workers Pulmonary-system-disorders Respiratory-irritants Respiratory-system-disorders Textile-finishing Textile-mills Textile-workers Textiles Textiles-industry

  More +
• ISSN:
  1073-449X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Massachusetts ; OSHA Region 1 ; OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  OD - Office of the Director
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  163
• Issue:
  4
• NIOSHTIC Number:
  nn:20032173
• Citation:
  Am J Respir Crit Care Med 2001 Mar; 163(4):847-853
• Contact Point Address:
  Dr. David Christiani, Occupational Health Program, Harvard School of Public Health, 665 Huntington Avenue, Boston, MA 02115
• Email:
  dchris@hohp.harvard.edu
• Federal Fiscal Year:
  2001
• Performing Organization:
  Harvard University
• Peer Reviewed:
  True
• Start Date:
  19870701
• Source Full Name:
  American Journal of Respiratory and Critical Care Medicine
• End Date:
  20220831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:ad2ad6298773b95d6e14f72c1520dd19e07306272ca121ae766cd0c5ce8ea4df0cdb2774bfa91afe6b8b98c3cf8b503bf810f8a90bc4d2bfd27e1d1a3cac10de
• Download URL:
  https://stacks.cdc.gov/view/cdc/186216/cdc_186216_DS1.pdf
• File Type:
  [PDF - 149.62 KB ]