脑卒中发病时间规律初探

Diurnal variation, moon phase and seasonal variation in onset of stroke

目的研究脑卒中发病的时间规律。方法统计分析 90 5例住院脑卒中患者发病的昼夜、月相和季节。结果与结论32 1例脑梗死患者昼夜发病率有着高度显著性差异 (P <0 0 1) ,晨间发病率明显高于其他时段 ,而其发病的月相、季节规律不明显。脑出血发病无明显昼夜。

ObjectiveTo determine the diurnal variation,moon phase,and seasonal variation in the onset of stroke. MethodsThe time parameters,including the time,the moon phase and the season of the stroke occurrence for 905 in-patients from 1989-2001 were investigated.ResultsThere was a significant difference (D=0.155,P<0.01) for circadian rhythm in the onset of 321 cases with cerebral infarction,and the incidence frequency at dawn was much higher than that at other time,but the difference of the moon phase and seasonal rhythm in the onset of cerebral infarction were not significant(P>0.05).There were not diurnal variation,moon phase and seasonal rhythms in the onset for cerebral haemorrhage(P>0.05).ConclusionsThe cerebral infarction occur more frequently at dawn time.