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根据《吉林省急性克山病统计资料(1959～1973)》及嗣后所收集的资料,对吉林省连续25年的克山病发病、(包括急型、亚急型和慢型急发病例,下同)情况进行统计分析。全省有27个县(市)被定为患区,按各县(市)逐年累计发病率划分为重、中、轻三类患区,属于重患区的有10个县,中患区的5个县,轻患区的12个县(市),这是本文所涉及的地区范围。为保持克山病冬季多发的特点,均以某年4月1日至翌年3月31日为某发病年度,故本文所涉及的时期范围是1959年4月1日至
According to the “Acceleratory Keshan Disease Statistics of Jilin Province (1959-1973)” and the data collected after the Sui Dynasty, the incidence of Keshan disease in Jilin Province for 25 consecutive years (including acute, sub-emergency and chronic acute cases, Statistical analysis of the same situation below. There are 27 counties (cities) in the province designated as affected areas, which are classified as heavy, medium and light types of affected areas according to the cumulative incidence of each county (city) year by year. There are 10 counties in the severely affected areas, and those in the affected areas. Five counties, 12 counties (cities) in lightly affected areas, this is the area covered by this article. In order to maintain the characteristics of multiple occurrences of Keshan disease in winter, from April 1st to March 31st of the following year, it is a certain incidence year. Therefore, the period covered by this article is from April 1, 1959 to