709例萨病患者发病时间圆形分布分析

A Circular Distribution Analysis of Onset Time of 709 Patients with Sa Disease

目的:应用圆形分布法对709例萨病患者发病时间进行回顾性研究,分析萨病发病时间的规律特征。方法:采用回顾性调查的方法,应用Excel 2010实现圆形分布分析。结果:(1)不同月份患病人数频数分析示:12～5月份患病人数最多。圆形分布分析结果示:患病高峰日为3月12日。(2)每个季度患病总数频数分析,发现春季发病人数最多;圆形分布分析示:患病高峰季节为春季。讨论:季节对萨病发病率有直接影响作用,尤其是春季注意预防萨病的发生。

Oobjective To study the pathogenesis time of 709 patientswith Sa disease by circular distribution method. Methods the circular distribution was analyzed by retrospective investigation and Excel 2010. Results the number of cases in December to may was the highest. The circular distribution analysis showed that the peak day of the disease was March 12. Statistical analysis of the total number of diseases per season found that the number of diseases in spring was the largest. Circular distribution analysis showed that the peak season was spring. Discussion Seasons have a direct impact on the incidence of Sa disease,especially in the spring.