影响单纯尘肺分类观察者间差异的一些因素。
Some factors influencing interobserver variation in classifying simple pneumoconiosis.
作者信息
Musch D C, Higgins I T, Landis J R
出版信息
Br J Ind Med. 1985 May;42(5):346-9. doi: 10.1136/oem.42.5.346.
Abstract
Three experienced physician readers assessed the chest radiographs of 743 men from a coal mining community in West Virginia for the signs of simple pneumoconiosis, using the ILO U/C 1971 Classification of Radiographs of the Pneumoconioses. The number of films categorised by each reader as showing evidence of simple pneumoconiosis varied from 63 (8.5%) to 114 (15.3%) of the 743 films classified. The effect of film quality and obesity on interobserver agreement was assessed by use of kappa-type analytic procedures for measuring agreement on categorical data. Poor film quality and obesity both affected agreement adversely. Poor quality films were disproportionately frequent in obese individuals, as defined by the Quetelet index. On control of film quality by stratification, the effect of obesity on interobserver profusion agreement was no longer evident.
摘要
三位经验丰富的医生读者，依据国际劳工组织（ILO）1971年的《尘肺病X线诊断分类标准》，对来自西弗吉尼亚州一个煤矿社区的743名男性的胸部X光片进行了检查，以判断是否存在单纯尘肺病迹象。在这743份被分类的X光片中，每位读者判定显示有单纯尘肺病迹象的片子数量从63份（8.5%）到114份（15.3%）不等。通过使用卡方型分析程序来测量分类数据的一致性，评估了胶片质量和肥胖对观察者间一致性的影响。胶片质量差和肥胖均对一致性产生了不利影响。按照奎特莱指数的定义，肥胖个体中质量差的胶片比例过高。通过分层控制胶片质量后，肥胖对观察者间密集度一致性的影响不再明显。
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