Rheumatoid pneumoconiosis: a comparative study of autopsy cases between Japan and North America

Details

• Personal Author:
  Honma K ; Vallyathan V ; Honma K ; Vallyathan V
• Description:
  In order to elucidate the prevalence of rheumatoid pneumoconiosis (RP), an extensive review was conducted of pathological specimens from a large series of autopsy cases both in Japan and the USA (National institute for Occupational Safety and Health). Twenty-two cases were pathologically identified as having RP among 2450 autopsied coal workers with pneumoconiosis in the USA (0.89%) and its prevalence was comparable with that of Japanese RP cases (n = 9) among 1217 pneumoconiotics (0.74%). RP consisted of two subtypes, Caplan type and silicotic type. All Japanese cases were of the silicotic type (0.82%). In the USA 14 were of Caplan type (0.37%) and 8 silicotic (1.5%). Although RP is an uncommon disease, silicotics are relatively more prone to develop RP compared with other types of pneumoconiotics. The incidence of tuberculosis was significantly higher (9.1%) among RP cases than the non-rheumatoid population (1.5%) only in the US cases (P < 0.01). [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Demography Lung Lung Diseases Mining Occupational Health Pathology Pneumoconiosis Respiratory System Respiratory Tract Diseases Safety Silicosis Workplace

  More +
• Keywords:
  Author Keywords: Pneumoconiosis Coal Miners Coal Mines Coal Mining Demographic Characteristics Lung Disease Lung Disorders Rheumatoid Arthritis Rheumatoid Disorders Rheumatoid Nodule Underground Miners Underground Mines Work Environment Workers

  More +
• ISSN:
  0003-4878
• Document Type:
  Text
• Genre:
  Journal Article ; Journal Article
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH) ; National Institute for Occupational Safety and Health (NIOSH)
• Division:
  HELD - Health Effects Laboratory Division ; HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health ; Workplace Safety & Health
• Location:
  North America ; North America
• Pages in Document:
  265-267
• Volume:
  46
• NIOSHTIC Number:
  nn:20047631
• Citation:
  Ann Occup Hyg, Inhaled Particles IX, 2002 Dec; 46(Suppl 1):265-267
• Contact Point Address:
  Koichi Honma, Department of Pathology, Dokkyo University School of Medicine, Kitakobayashi 880, Mibu, Tochigi 3210293, Japan
• Email:
  honma@dokkyomed.ac.jp
• Editor(s):
  Ogden T; Donaldson K; Cherry N ; Ogden T; Donaldson K; Cherry N
• Federal Fiscal Year:
  2003
• Peer Reviewed:
  True
• Source Full Name:
  Annals of Occupational Hygiene, Inhaled Particles IX
• Supplement:
  1
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:a5b55fdee01f70e000575c685415edd3835c7a42c7419e6a6725781b18e4ee2d5d312705002d6807c24c3cea6235cf5d176db6ab691a9d27e498c36a418f664c
• Download URL:
  https://stacks.cdc.gov/view/cdc/202646/cdc_202646_DS1.pdf
• File Type:
  [PDF - 59.07 KB ]