Hu Meng-jue, Ma Wen-jun, Zhang Yong-hui, Liu Tao, Lin Hua-liang, Luo Yuan, Xiao Jian-peng
School of Medicine, Jinan University, Guangzhou 510632, China.
Guangdong Provincial Institiute of Public Health; Guangdong Provincial Centern for Disease Control and Prevention.
Zhonghua Liu Xing Bing Xue Za Zhi. 2013 Sep;34(9):922-6.
To understand the effect of temperature on the risk of mortality and the modification effect of latitude, in China.
Relevant papers were searched and Meta-analysis was used to determine the exposure-response relationship for each health outcome which was associated with the exposure to temperature. Meta-regression analysis was used to evaluate the effect modification by latitude.
Ten studies in 15 cities were included in the study. When temperature increased by one centigrade, the risks of mortality showed the following changes:deaths from non-accidental increased by 2% (95%CI:1%, 3%), from cardiovascular disease increased by 4% (95%CI:2%, 6%)and from the respiratory disease increased by 2% (95%CI:1%, 4%). As temperature decreased by one centigrade, the mortality risks of the following diseases showed the changes as: non-accidental death increased by 4% (95% CI:2%, 7%), cardiovascular disease increased by 4% (95%CI:1%, 7%)and the respiratory diseases increased by 2% (95%CI:0%, 4%). When latitude ranged from 0 to 25, 26 to 30, 31 to 39 degree or over 40 degrees, respectively and the temperature decreased by one centigrade, the mortality risks of the general population increased by 6.5% (95%CI:-2.7%, 15.6%), 5.8% (95% CI:2.4%, 9.3%),0.8% (95%CI:0.4%, 1.2%),0.5% (95%CI: -0.5%, 1.5%). As temperature increased by one centigrade, mortality risk of the general population increased by 0.6% (95%CI:-0.3%, 1.4%), 1.9% (95%CI:0.7%, 3.1%), 2.0% (95%CI:1.0%, 3.0%) and 5.8% (95% CI:-3.2%, 14.8%). As latitude increased by five degrees with high temperature, the mortality risk of general people increased by 0.3% (95% CI:0.1% ,0.8%) while decreased by 0.8% (95% CI:0.5%, 0.9%) under low temperature.
In China, the mortality risk increased along with the changes of temperature. The adaptability to coldness among people living in high latitude areas seemed to be stronger than those living in other areas of latitudes. Who were more vulnerable to high temperature.
了解温度对中国人群死亡风险的影响以及纬度的修正作用。
检索相关文献，采用Meta分析确定与温度暴露相关的各健康结局的暴露-反应关系。采用Meta回归分析评估纬度的效应修正作用。
该研究纳入了15个城市的10项研究。温度每升高1摄氏度，死亡风险变化如下：非意外死亡风险升高2%（95%CI：1%，3%），心血管疾病死亡风险升高4%（95%CI：2%，6%），呼吸系统疾病死亡风险升高2%（95%CI：1%，4%）。温度每降低1摄氏度，以下疾病的死亡风险变化为：非意外死亡风险升高4%（95%CI：2%，7%），心血管疾病死亡风险升高4%（95%CI：1%，7%），呼吸系统疾病死亡风险升高2%（95%CI：0%，4%）。当纬度分别为0至25度、26至30度、31至39度或40度以上，且温度每降低1摄氏度时，普通人群的死亡风险分别升高6.5%（95%CI：-2.7%，15.6%）、5.8%（95%CI：2.4% , 9.3%）、0.8%（95%CI：0.4%，1.2%）、0.5%（95%CI：-0.5%，1.5%）。温度每升高1摄氏度，普通人群的死亡风险分别升高0.6%（95%CI：-0.3%，1.4%）、1.9%（95%CI：0.7%，3.1%）、2.0%（95%CI：1.0%，3.0%）和5.8%（95%CI：-3.2%，1）。高温时，纬度每升高5度，普通人群的死亡风险升高0.3%（95%CI：0.1%，0.8%）；低温时，纬度每升高5度，普通人群的死亡风险降低0.8%（95%CI：0.5%，0.9%）。
在中国，死亡风险随温度变化而升高。高纬度地区人群对寒冷的适应能力似乎强于其他纬度地区人群，而对高温更为敏感。
原文中最后一行“5.8%（95%CI：-3.2%，1）”括号内后一个数字不完整，我按照原文呈现进行了翻译。
