Abstract
Evidence of epidemicity of nasopharyngeal carcinoma (NPC) was sought in Greenland Inuits, who have a high incidence of this cancer, by examining the births of NPC cases for evidence of clustering in time and space. Births of cases were concentrated in autumn and winter. Fifty-four cases were analysed, and a two-fold excess of clustering within one year was observed, both within single districts and between adjacent districts. This excess was not significant at the 5% level; about 90 cases would have been required to confirm the observed effect at this level of significance. It is suggested that a search for space-time clustering of NPC cases in larger high-risk populations might prove more fruitful.
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Albeck, H., Coleman, M., Nielsen, N. et al. Space-time clustering of nasopharyngeal carcinoma in Greenland Eskimos. Br J Cancer 52, 909–914 (1985). https://doi.org/10.1038/bjc.1985.276
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DOI: https://doi.org/10.1038/bjc.1985.276
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