北京地区冠心病发病与六气及气象的相关性研究

目的:研究北京地区冠心病发病与六气气象的相关性,探讨影响冠心病发病的气候因素。方法:冠心病发病数据来源为北京中医药大学东直门医院心血管科1997年-2007年收治的全部住院病例,共计1 901例。气象资料由北京市观象台提供,六气资料按中医运气学说理论推演。将病例数按六气分段进行描述性分析;并将气温、水汽压、相对湿度、降水量、风速、低云量和舒适度7项气象指标作为自变量,将冠心病病例数作为因变量,进行单因素偏相关分析和多元线性回归分析。结果:冠心病的病例数在初之气、五之气和终之气3个阶段较多,在二之气、三之气和四之气3个阶段较少。冠心病的发生与平均气温、平均相对湿度、平均水汽压和平均风速呈负相关,与平均降水量、低云量和舒适度呈正相关,其中与相对湿度、风速、降水量及舒适度的相关性有统计学意义(P0.05,P0.01)。结论:冠心病的发生在六气各段气中有一定的规律,主要受风速和相对湿度的影响,并与中医对六气致病特点的认识一致。

Correlation study among incidence of coronary heart disease with six-qi and climate in Beijing

Objective: To research the correlation among incidence of coronary heart disease(CHD),six-qi and climate in Beijing area,discuss the influence of climate factors in the incidence of CHD.Methods: 1 901 cases in the cardiovascular department of Dongzhimen hospital from 1997 to 2007 were divided and calculated by six-qi theroy.Meteorological data was provided by observatory of Beijing.Temperature,vapor pressure,relative humidity,precipitation,wind speed,low cloud cover and comfort index were regarded as variables,and the cases of coronary heart disease as dependent variable.Single factor partial correlation analysis and multiple linear analysis was used to deal with datas.Results: The numbers of CHD patients in the first,fifth,sixth stages were more than in other stages.Totally,the incidence of CHD was negatively correlated with air temperature,relative humidity,vapor pressure and wind speed,and positively correlated with precipitation,low cloud amount and comfort index,in which relative humidity and wind speed was statistically significant(P<0.05,P<0.01).Conclusion: The incidence of CHD influenced mainly by wind speed and relative humidity showed certain regularity in six-qi stage,which is consistent with the etiology of six-qi in TCM theory.