Proficiency in Reading Pneumoconiosis Radiographs Examined by the 60-film Set with 4-factor Structuring 8-index

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  • ZHOU Huashi
    Department of Environmental Health, School of Medicine, University of Fukui
  • KUSAKA Yukinori
    Department of Environmental Health, School of Medicine, University of Fukui
  • TAMURA Taro
    Department of Environmental Health, School of Medicine, University of Fukui
  • SUGANUMA Narufumi
    Department of Environmental Medicine, Kochi University School of Medicine
  • SUBHANNACHART Ponglada
    Chest Disease Institute
  • SIRIRUTTANAPRUK Somkiat
    Bureau of Occupational and Environmental Diseases, Ministry of Public Health
  • DUMAVIBHAT Narongpon
    Department of Preventive and Social Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University
  • ZHANG Xing
    Institute of Hygiene, Zhejiang Academy of Medical Sciences
  • SISHODIYA P. K.
    National Institute of Miners’ Health
  • VAN DUY Khuong
    Department of Occupational Health, Ha Noi Medical University School of Public Health
  • HERING Kurt G.
    Department of Diagnostic Radiology, Radiooncology and Nuclear Medicine, Radiological Clinic, Miner’s Hospital
  • PARKER John E.
    Pulmonary and Critical Care Medicine, Robert C, Byrd Health Sciences Center, School of Medicine, West Virginia University
  • ALGRANTI Eduardo
    Divisao de Medicina, Fundacentro
  • FEDOTOV Igor
    International Labor Office
  • SHIDA Hisao
    Committee of Compensation of Asbestos Related Diseases in Ministry of Environment Protection
  • AKIRA Masanori
    Department of Radiology, National Hospital Organization Kinki-Chuo Chest Medical Center

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29 physicians (A1-Group) and 24 physicians (A2-Group) attending the 1st and 2nd “Asian Intensive Reader of Pneumoconiosis” (AIR Pneumo) training course, respectively, and 22 physicians (B-Group) attending the Brazilian training course took the examination of reading the 60-film set. The objective of the study was firstly to investigate the factor structure of physicians’ proficiency of reading pneumoconiosis chest X-ray, and secondly to examine differences in factor scores between groups. Reading results in terms of the 8-index of all examinees (Examinee Group) were subjected to the exploratory factor analysis. A 4-factor was analyzed to structure the 8-index: the specificity for pneumoconiosis, specificity for large opacities, specificity for pleural plaque and shape differentiation for small opacities loaded on the Factor 1; the sensitivity for pneumoconiosis and sensitivity for large opacities loaded on the Factor 2; the sensitivity for pleural plaque loaded on the Factor 3; the profusion increment consistency loaded on the Factor 4. 4-Factor scores were compared between each other of the three groups. The Factor 2 scores in A1 and A2 groups were significantly higher than in B-Group. Four factors could reflect four aspects of reading proficiency of pneumoconiosis X-ray, and it was suggested that 4-factor scores could also assess the attained skills appropriately. <br>

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