Kinjo Y, Nakano A, Ishizaki T, Maeda K
Department of Epidemiology, National Institute for Minamata Disease, Kumamoto.
Nihon Koshu Eisei Zasshi. 1991 Jul;38(7):517-24.
To investigate features of the incidence of methylmercury poisoning cases presumably caused by intake of polluted foods in Japan and Iraq, several populations exposed to polluted foods were analyzed by geography and/or occupation. Ratios of confirmed cases to the corresponding number by age and sex in the defined exposed population were calculated. The distribution of the ratios showed a unimodal age distribution for both males and females in the Japanese Minamata and Niigata population. On the contrary, in the Iraqi population, ratios distributed equally by age and sex groups, having no peaks. This difference between the two countries is probably due to the difference of ingestion by age and sex in fish and wheat, which was the primary source of methylmercury exposure.
为调查日本和伊拉克因摄入受污染食物可能导致的甲基汞中毒病例的发病特征，按地理区域和/或职业对若干接触受污染食物的人群进行了分析。计算了特定暴露人群中确诊病例数与相应年龄和性别人数的比例。该比例分布显示，日本水俣和新潟人群中男性和女性的年龄分布均为单峰型。相反，在伊拉克人群中，各年龄和性别组的比例分布均匀，没有峰值。两国之间的这种差异可能是由于鱼类和小麦（甲基汞暴露的主要来源）的摄入在年龄和性别上存在差异。
