[Investigation on the correlation between the mortality of cerebrovascular diseases and the meteorological factors in Zhanjiang City].

The correlation of the mortality of cerebrovascular diseases in more than 1 million population from 1987 to 1989 with meteorologic phenomena (air temperature, atmospheric pressure, relative humidity) was studied using computering simple correlation analysis in Zhanjiang City which is located in subtropical area, with an average air temperature between 15 degrees C and 18 degrees C in winter. The results showed that the mortality of cerebrovascular diseases in winter was the highest. Mortality was in significant negative correlation with air temperature (r = 0.7785, P < 0.01), in significant positive correlation with atmospheric pressure (r = 0.7511, P < 0.01), and in no significant correlation with relative humidity (r = 0.1413, P > 0.05). It suggested that the mortality of cerebrovascular diseases in Zhanjiang City would significantly increase in the condition that the average air temperature is 15 degrees C-18 degrees C, and the average atmospheric pressure is 1014-1020 millibar in winter.