The association of small irregular opacities on chest radiograph with aging in a nonsmoking population without occupational dust exposure.

Details

• Personal Author:
  Crapo RO ; Ghio AJ ; Renzetti AD Jr.
• Description:
  A study of age related changes in opacities in a nonsmoking population without occupational dust exposure was conducted to test the hypothesis that small radiographic opacities increase with age independently of dust exposure and cigarette smoking. The cohort consisted of 159 lifetime nonsmokers, 84 males, 15 to 85 years old. The subjects were asymptomatic and had no occupational exposure to dusts or asbestos (1332214). Posterior/anterior chest X-rays were made and analyzed according to the 1980 International Labour Organization (ILO) 1980 classification system by two NIOSH certified B-readers. One reader classified 133 X-ray films as profusion category 0/0 and 26 as category 0/1. The other reader classified 125 films as category 0/0 and 34 as category 0/1. No radiograph had a profusion category greater than 0/1. Overall agreement between the two readers was 80.5%. The opacities were primarily s-type and t- type and were located in the lower zones. Male subjects had 0/1 category opacities more frequently than females. The profusion of small opacities increased with age; however, the association was statistically significant only for the female subjects. The authors conclude that an association of small opacities on chest X-rays with age independent of dust exposure or age occurs only in females. Age related changes in breast tissue may account for this result.
• Subjects:
  Accidents, Occupational Eye Lighting Occupational Health Radiation Safety Sense Organs Sense Organs / Injuries Welding
• Keywords:
  Age Factors Chest X Rays Epidemiology Lung Lesions Sex Factors Statistical Analysis Visual Images X Ray Analysis
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Genre:
  Conference/Symposia Proceedings
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1336-1339
• NIOSHTIC Number:
  nn:00198797
• Citation:
  Proceedings of the VIIth International Pneumoconioses Conference, August 23-26, 1988, Pittsburgh, Pennsylvania, USA. Atlanta, GA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 90-108, 1990 Nov; (Pt II):1336-1339
• CAS Registry Number:
  Asbestos (CAS RN 1332-21-4)
• Federal Fiscal Year:
  1991
• Peer Reviewed:
  False
• Part Number:
  II
• Source Full Name:
  Proceedings of the VIIth International Pneumoconioses Conference, August 23-26, 1988, Pittsburgh, Pennsylvania, USA
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:fdf551c84fa162c2da81c7f3ee32a53e079938af95b1c551e9d054babe2324a13749de0e014bfc24aa1add59d51149cf4e3209344b3cd88e162c095381908a39
• Download URL:
  https://stacks.cdc.gov/view/cdc/180672/cdc_180672_DS1.pdf
• File Type:
  [PDF - 162.69 KB ]