目的研究南京市温度对死亡的急性效应。方法利用南京市2007—2012年死因、气象、空气污染数据,使用分布滞后非线性模型(DLNM)分析南京市非意外死亡、循环系统疾病死亡以及呼吸系统疾病死亡的冷效应、热效应、极端冷效应和极端热效应的健康风险(RR)。结果非意外死亡、循环系统死亡、呼吸系统死亡的最低死亡温度(MMT)分别为25.2、25.5、25.3℃。非意外死亡的冷效应、极端冷效应、热效应、极端热效应的RR分别为:1.39(95%CI:1.25~1.53)、1.08(95%CI:1.02~1.14)、1.13(95%CI:1.07~1.20)、1.11(95%CI:1.06~1.16);循环系统疾病死亡分别为:1.67(95%CI:1.44~1.94)、1.11(95%CI:1.03~1.20)、1.25(95%CI:1.15~1.36)、1.21(95%CI:1.13~1.29);呼吸系统疾病死亡分别为1.43(95%CI:1.04~1.96)、1.13(95%CI:0.97~1.32)、1.31(95%CI:1.09~1.56)、1.25(95%CI:1.08~1.45)。结论循环系统疾病和呼吸系统疾病为温度影响死亡的敏感疾病,尤其应关注冷效应和极端热效应的健康风险。
Objective To explore the short-term effects of ambient temperature on mortality in Nanjing. Methods The cold effect, extreme cold effect, hot effect, and extreme hot effect with death causes data, meteorological data, and air pollution data of 2007-2012 were analyzed using distributed lag non-liner model(DLNM). Results The minimal mortality temperature(MMT)of non-accidental mortality, mortality due to circulatory and respiratory diseases were 25.2 ℃, 25.5 ℃, and 25.3 ℃respectively. The cold effect, extreme cold effect, hot effect, and extreme hot effect of all non-accidental death were 1.39(95%CI:1.25-1.53), 1.08(95% CI:1.02-1.14), 1.13(95% CI:1.07-1.20), and 1.11(95% CI:1.06-1.16) separately. The effect of circulatory death were 1.67(95% CI:1.44-1.94), 1.11(95% CI:1.03-1.20), 1.25(95% CI:1.15-1.36), 1.21(95% CI:1.13-1.29) respectively. And the effect of respiratory death were 1.43(95% CI:1.04-1.96)、1.13(95% CI:0.97-1.32)、1.31(95% CI:1.09-1.56)、1.25(95% CI:1.08-1.45) respectively. Conclusion Mortality due to circulatory and respiratory diseases showes significant correlation with temperature. The cold effect and extreme hot effect should be paid special attention to.