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[目的]了解1996—2008年上海市浦东新区麻疹发病情况,分析麻疹发病的季节性规律并探讨麻疹发病率升高对其发病季节性的影响。[方法]采用圆形分布法,比较和分析发病率不同水平时期的麻疹发病高峰日和高峰期的情况。[结果]6个时期麻疹发病的高峰日分别为4月18日、5月11日、9月18日、5月17日、4月9日和5月19日;高峰期分别为120、129、194、136、100、163 d;1996—2008年,发病高峰更趋规律,以4—5月为主;高峰期可受最高月病例构成的影响,发生相应的改变。[结论]麻疹发病率升高,不能改变麻疹的季节性和发病高峰;圆形分布法分析单峰型有季节特征的麻疹的发病高峰特征,简明扼要,描述直观。
[Objective] To understand the incidence of measles in Pudong New Area of Shanghai from 1996 to 2008, analyze the seasonal pattern of the incidence of measles and explore the influence of the rising incidence of measles on its seasonal incidence. [Method] The circular distribution method was used to compare and analyze the incidence peak and peak incidence of measles at different levels of morbidity. [Results] The peak incidence of measles in the six periods were April 18, May 11, September 18, May 17, April 9 and May 19, respectively; the peak periods were 120,129 , 194,136,100,163 d. From 1996 to 2008, the incidence peaked more regularly, which was mainly in April-May. The peak period could be affected by the composition of the highest month and the corresponding changes occurred. [Conclusion] The incidence of measles increased without changing the seasonal and peak incidence of measles. The circular distribution method was used to analyze the peak incidence characteristics of unimodal seasonal measles, which is concise and concise and the description is intuitive.