慢性支气管炎与气象条件的关系

Correlation between Chronic Bronchitis and Meteorological Conditions in Nanjing

目的探讨南京市慢性支气管炎发病与气象条件的关系。方法对200名老年慢性支气管炎患者随访1年,分析其发病的月际变化及与气温、气压变化的关系,分季节用逐步多元回归分析选出影响慢性支气管炎发病的主要气象因素,并建立回归方程。结果慢性支气管炎患者一年四季均有发病,冬季最高,其次为春季,夏季最低;月平均发病人数以12月、4月份最多,5月最少,7月次少。24h温差和发病人数的相关系数r1=0.5762,P=0.0499;24h压差与发病人数的相关系数r2=0.5841,P=0.0461,具有统计学意义。多元逐步回归分析中影响发病的气象因子有气温、气压、风速、24h温差。结论气象条件稳定,慢性支气管炎发病低;气象条件多变,发病高。降温和高气压是诱导慢性支气管炎发病的主要气象因素。

Objective To discuss the relationship between chronic bronchitis and meteorological conditions in Nanjing. Methods Took the record of the recrudescing time of 200 old chronic bronchitis patients for a year. The correlation between the changing of air temperature and pressure and the monthly chronic bronchitis recrudescing in a year was analyzed. The main meteorological conditions by which recrudescing were affected in different season were selected with multiple stepwise correlation analysis. Results There were chronic bronchitis patients recrudescing the whole year, but the most were in winter and the least in summer. The most recrudescing happened in December and April, and the least in May and July. The meteorological factors that affected chronic bronchitis patients recrudescing were air temperature, pressure and wind speed. The relative coefficient of case numbers between 24 hours variations of air temperature and pressure was 0. 5762 （ P = 0. 0499 ） and 0.5841（P=0.0461）, respectively. Conclusion The steady meteorological conditions are not good for recrudescing of chronic bronchitis patients. And temperature descent and high air pressure are the main meteorological factors that induce chronic bronchitis recrudescing.