弗朗斯维尔市气象因素与疟疾、高血压和脑卒中关系的初步探讨

The associations between meteorological factors and malaria,hypertension and stroke in Franceville

目的:探讨非洲加蓬弗朗斯维尔市疟疾、高血压、脑卒中与气象因素的关系。方法:回顾性分析弗朗斯维尔市中加友谊医院和阿弥撒医院2017—2018年门诊收治的6224例疟疾、高血压和脑卒中患者及同期的气温、气压、相对湿度、降水量等气象资料。采用t检验或Mann-Whitney U检验分析气象因素、疟疾、高血压、脑卒中在旱季雨季的分布规律,Spearman相关分析气象因素与疟疾、高血压、脑卒中发病之间的关系。结果:雨季疟疾和脑卒中月门诊量显著多于旱季(疟疾t=-8.4,P<0.001;脑卒中t=-4.6,P<0.001);疟疾月门诊量与月平均气温、降水量和有雾天数呈正相关(r=0.587、0.744、0.715,均P<0.01),与气压呈负相关(r=-0.705,P<0.001)。脑卒中月门诊人数与月平均气温(r=0.570,P=0.004)、最大湿度(r=0.519,P=0.011)和降水量(r=0.722,P<0.001)呈正相关,与平均气压呈负相关(r=-0.700,P=0.011)。高血压月门诊人数在旱季和雨季无差异,且与气象因素均无显著性相关(P>0.05)。结论:气象因素是弗朗斯维尔市疟疾、脑卒中的发病的影响因素,在雨季气象条件下疟疾、脑卒中发病率高。

Objective:To investigate the relationship between malaria,hypertension,stroke and meteorological factors in Franceville,Gabon,Africa.Methods:Data of 6224 outpatient cases of malaria,hypertension and stroke of China-Gabon Friendship Hospital and Amisa Hospital in Franceville from 2017 to 2018 were retrospectively reviewed.Meteorological data such as temperature,air pressure,relative humidity,and precipitation over the same period were also obtained.The t test or Mann-Whitney U test was used to analyze the distribution of meteorological factors,malaria,hypertension,and stroke in the dry and rainy seasons.The Spearman correlation analysis was used to analyze the relationship between meteorological factors and the incidence of malaria,hypertension,and stroke.Results:The monthly outpatient visits for malaria and stroke in the rainy season were significantly more than those in dry season(malaria t=-8.4,P<0.001;stroke t=-4.6,P<0.001).The monthly outpatient visits for malaria were positively associated with monthly average temperature,precipitation and foggy days(r=0.587,0.744,0.715,all P<0.01),and negatively associated with air pressure(r=-0.705,P<0.001).The monthly outpatients of stroke were positively correlated with monthly average temperature(r=0.570,P=0.004),maximum humidity(r=0.519,P=0.011)and precipitation(r=0.722,P<0.001),and negatively correlated with the average air pressure(r=-0.700,P=0.011).However,there was no difference in the monthly hypertensive outpatients between dry and rainy seasons and there was no significant correlation between the monthly hypertensive outpatients and the meteorological factors.Conclusion:Meteorological factors are associated with the incidence of malaria and stroke,which is higher in the rainy season.