Data of a meta-analysis

Data extracted from included studies of a meta-analysis: the excess risks of mortality due to heat effects, cold effects, and heatwaves, at high and low air pollutants respectively.本数据集提取自某荟萃分析（meta-analysis）所纳入的研究，涵盖分别在高、低空气污染物暴露水平下，热效应、冷效应与热浪所致的致死超额风险数据。