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对北京急诊死亡人数与气象要素进行了逐步回归分析，结果表明：逐月、旬死亡人数与同期平均气温或平均最低气温呈负相关，与平均气压呈正相关。影响脑血管和循环系统疾病逐月死亡人数的主要气象因子为月平均气压，呈正相关。呼吸系统疾病和呼吸衰竭逐月死亡人数分别受月平均最高气温和月降水量的影响，呈负相关。所有回归方程都反映出冬季（气温低、气压高、降水少）死亡人数多，夏季（气温高、气压低、降水多）死亡人数少。
The stepwise regression analysis of mortality and meteorological factors in Beijing emergency department showed that there was a negative correlation between the number of deaths per month and the average or minimum mean temperature over the same period and a positive correlation with mean pressure. The main meteorological factors influencing monthly deaths of cerebrovascular and circulatory diseases are monthly mean pressure, which are positively correlated. The number of monthly deaths from respiratory diseases and respiratory failure was negatively correlated with the monthly mean maximum air temperature and monthly precipitation, respectively. All of the regression equations reflect the high number of deaths in winter (low temperature, high barometric pressure, less precipitation) and fewer deaths in summer (high temperature, low barometric pressure and more precipitation).