著者
近藤 喜代太郎
出版者
The Japanese Society for Hygiene
雑誌
日本衛生学雑誌 (ISSN:00215082)
巻号頁・発行日
vol.51, no.2, pp.599-611, 1996-07-15 (Released:2009-02-17)
参考文献数
9
被引用文献数
5 6

Data obtained from all residents, who lived in the Agano river villages where Minamata disease occurred as of June 1965, were used to analyze its incidence patterns and to evaluate validity of the official recognition of the disease. The residents totaled 18, 253 (8, 911 males and 9, 342 females), including 262 (151 males and 111 females) recognized patients and 378 (186 males and 192 females) rejected applicants.Consumption of the contaminated river fish was associated with hair Hg measurements (ppm), but there were few residents who denied the consumption but showed elevated Hg values, probably due to false-negative answers in the census survey in 1965.Incidence rates of the recognized patients increased with the upgrading codes for fish ingestion, but analysis of the association of fish ingestion among the recognized applicants indicated that there were ca. 50% false-positive diagnosis. This analysis showed that The Government made best efforts to help very mild cases despite the fact that such a generous attitude inevitably causes overdiagnosis.Incidence rates of the rejected applicants also showed a dose-response. This is extremely important because a rejection meant that compensation was refused by the polluting company. Protest groups insisted the existence of Minamata disease showing only sensony symptoms. but this concept has not been accepted by the Government and the polluters. The present study disclosed a doseresponse relationship in the rejected cases giving positive ground for the opinions proposed by protest groups.Proportions of such “Hg-associated sensory disorders” (cases with unexplained sensory disorders which are associated with river fish ingestion) were 15-30% among the exposed applicants, 6.6-15% among the all rejected applicants, and 3.9-10% among the unexplained sensory disorders in the regional population.Owing to the river pollution, there was 5-11% increase of the unexplained sensory disorders among the local residents, in addition to recognizable Minamata disease.

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昭和41(1966)年3月24日、厚生省新潟水銀中毒事件特別研究班・関係各省庁合同会議において提出された 「阿賀野川沿岸部落の有機水銀中毒症集団発生に関する疫学的研究 / 厚生省疫学研究班」について調査しております。閲覧方法をご教授ください。

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新潟水俣病についての論文の中でニゴイの市場性の無さ、味と小骨の多さで女子や幼児に好まれなかったことにサラッと触れられている https://t.co/kuVlxHr4fn

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