Age-specific disparity in life loss per death attributable to ambient temperature: A nationwide time-series study in China

作者：Zeng, Weilin; Yu, Min; Mai, Weizhen; Zhou, Maigeng; Zhou, Chunliang; Xiao, Yize; Hou, Zhulin; Xu, Yanjun; Liu, Tao; Hu, Jianxiong; Xu, Xiaojun; Lin, Lifeng; Hu, Ruying; Li, Junhua; Jin, Donghui; Qin, Mingfang; Gong, Weiwei; Yin, Peng; Xu, Yiqing; Xiao, Jianpeng; Li, Xing; He, Guanhao; Chen, Siqi; Zhang, Yonghui; Huang, Cunrui; Rutherford, Shannon; Wu, Xianbo; Huang, Biao^*; Ma, Wenjun^*

来源：Environmental Research, 2022, 203: 111834.

DOI：10.1016/j.envres.2021.111834

• China
• Climate change
• Temperature
• Human health
• Mortality burden

Age-specific discrepancy of mortality burden attributed to temperature, measured as years of life lost (YLL), has been rarely investigated. We investigated age-specific temperature-YLL rates (per 100,000) relationships and quantified YLL per death caused by non-optimal temperature in China. We collected daily meteorological data, population data and daily death counts from 364 locations in China during 2006-2017. YLL was divided into three age groups (0-64 years, 65-74 years, and >= 75 years). A distributed lag non-linear model was first employed to estimate the associations of temperature with age-specific YLL rates in each location. Then we pooled the associations using a multivariate meta-analysis. Finally, we calculated age-specific average YLL per death caused by temperature by cause of death and region. We observed greater effects of cold and hot tem-perature on YLL rates for the elderly compared with the young population by region or cause of death. However, YLL per death due to non-optimal temperature for different regions or causes of death decreased with age, with 2.0 (95 % CI:1.5, 2.5), 1.2 (1.1, 1.4) and 1.0 years (0.9, 1.2) life loss per death for populations aged 0-64 years, 65-74 years and over 75 years, respectively. Most life loss per death results from moderate temperature, espe-cially moderate cold for all age groups. The effect of non-optimal temperature on YLL rates is smaller for younger populations than older ones, while the temperature-related life loss per death was more prominent for younger populations.

• 单位
  南方医科大学; 中山大学