High Temperatures and Air Pollution Increase Mortality in Wuhan
Author Information
Author(s): Qian Zhengmin, He Qingci, Lin Hung-Mo, Kong Lingli, Bentley Christy M., Liu Wenshan, Zhou Dunjin
Primary Institution: Geisinger Center for Health Research
Hypothesis
Temperature extremes modify the mortality effects of air pollution.
Conclusion
High temperatures enhance the mortality effects of PM10 in Wuhan.
Supporting Evidence
- Daily mean concentrations of PM10 were lower during high-temperature days than during low-temperature and normal-temperature days.
- The PM10 effects were strongest on extremely high-temperature days.
- Consistent associations were observed between daily mortality and PM10, NO2, and SO2.
- High temperatures enhanced PM10 mortality effects.
- Approximately 4.5 million permanent residents live in Wuhan's urban core.
Takeaway
When it gets really hot in Wuhan, the bad air makes more people sick and die.
Methodology
A generalized additive model was used to analyze pollution, mortality, and covariate data.
Potential Biases
Potential unknown and unmeasured factors, such as socioeconomic status, could affect the results.
Limitations
The study used both ICD-9 and ICD-10 codes, which may introduce misclassification in cause-specific mortality.
Participant Demographics
The majority of individuals who died were ≥ 65 years of age (71.9%).
Statistical Information
P-Value
0.014
Confidence Interval
0.74–3.68
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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