Abstract：Objective To investigate the time distribution of pre-hospital emergency stroke patients,so as to provide recommendations for stroke prevention and control. Methods The information of 2 844 stroke patients from 2013 to 2016 was collected from emergency medical center of Wenzhou,and circular distribution method was used to analyze the seasonal stroke incidence. Results Both seasonal and daily occurrence of cerebralvascular accidents showed weak （all r<0.3）trends of centralization （all P<0.05）.The average angle for each year was not equal,and the average angle of 2014 was significantly different from the other years（P<0.05）. The peak time point of every year（except 2014） was on the 4th of January and the peak time period was from the 2nd of September to the 9th of May of next year. The average angle for every day was（230.965±108.999）°（P<0.05）,which suggested that the peak time point was 14∶35,and the peak time period was from 7∶19 to 21∶51. Conclusion Stroke morbidity has obvious seasonality in Wenzhou,and the peak time was in winter and spring. Besides,the cerebralvascular accidents occures more often in the day time.The time distribution characteristics of stroke patients should be considered when studying the causes of stroke.
金晓胜, 叶侃, 张豪, 张盖, 姜毅. 应用圆形分布法分析脑血管意外发生的时间规律[J]. 预防医学, 2017, 29(9): 895-898.
JIN Xiao-sheng, YE Kan, ZHANG Hao, ZHANG Gai, JIANG Yi. An analysis of time distribution characteristics of stroke patients in Wenzhou City by circular distribution methods. Preventive Medicine, 2017, 29(9): 895-898.
HUANG R F,LEI W U,ZHU Q X. Analysis on the season and time rule of stroke incidence[J]. Chinese Journal of Gerontology,2012,32（6）：1117-1118.
[9]
FUSTINONI O,SAPOSNIK G,ESNAOLA M M ,et al. Higher frequency of atrial fibrillation linked to colder seasons and air temperature on the day of ischemic stroke onset[J]. Journal of Stroke & Cerebrovascular Diseases the Official Journal of National Stroke Association,2013,22（4）：476-481.
[10]
FANG C W,MA M C,LIN H J,et al. Ambient temperature and spontaneous intracerebral haemorrhage：a cross-sectional analysis in Tainan,Taiwan.[J]. Bmj Open,2012,2（3）：e000842.
FODOR D M,GONGANAUNITU D,PERJUDUMBRAVA L. Circadian patterns of ischemic stroke onset[J]. Human & Veterinary Medicine,2014,3（6）：132-139.
[13]
曾庆华. 急性脑卒中患者发病时间的分析[J]. 药物与人,2014,27（1）：85.
[14]
DUBEY D,SAWHNEY A,KAVISHWAR A,et al. A study of anatomical,seasonal and diurnal variation in the occurrence of ischemic stroke[J]. International Journal of Collaborative Research on Internal Medicine & Public Health,2011,3（10）：408-412.
