PubMed · 4443839
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R B O'CONNOR. 1974. Editorials: After Armageddon--what?. https://pubmed.ncbi.nlm.nih.gov/4443839/
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Exposure to a carcinogen is likely to be reflected by temporal clustering of cancer cases among the community members. Detection of such clustering is a complicated task in general and more so in a small workplace community with low turnover rate. In this study we applied the CUSCORE test and the q-interval statistic to lymphoma and colon cancer death data among 2200 asbestos workers. The CUSCORE test was applied in order to identify clusters, and the q-interval was used to provide clues related to the cause of the cluster. We also evaluated and tested the data according to the standardized mortality ratio (SMR). Significant increases in both colon cancer and lymphoma among asbestos workers in Israel (1987-1997) were demonstrated by the CUSCORE test but not so by the SMR. The fact that an apparent clustering was observed from the pattern of the q-intervals leads to the conclusion that the detected clusters are real.
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While use of asbestos materials in developed nations has been decreasing because of the harmful health effects of asbestos dust mining, processing and use of the ancient material in developing countries is increasing. The regulatory mechanism for use, handling and disposal of asbestos and associated waste in developing countries are weak and information on asbestos-related diseases is scanty but emerging. We identify lack of epidemiological data on asbestos health effects as a major gap to be bridged in the promotion of occupational and environmental health in developing countries. Without data on local situations, diseases such as asbestosis and mesothelioma remain too obscure to assist the campaign for appropriate regulation of asbestos usage or attracting attention to abominable industrial practices generally.