Key result
Higher maximum apparent temperature linked to ~7% lower CV mortality per 7 °C increase.
Observational
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Temperature, a key climate change indicator, is expected to increase substantially in the Northern Hemisphere, with potentially grave implications for human health. This study is the first to investigate the association between the daily 3-hour maximum apparent temperature (Tapp(max)), and respiratory, cardiovascular and cerebrovascular mortality in Copenhagen (1999-2006) using a case-crossover design. Susceptibility was investigated for age, sex, socio-economic status and place of death. For an inter-quartile range (7 °C) increase in Tapp(max), an inverse association was found with cardiovascular mortality (-7% 95% CI -13%; -1%) and none with respiratory and cerebrovascular mortality. In the cold period all associations were inverse, although insignificant.
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Wichmann et al. (2011) conducted an observational in Respiratory, cardiovascular, and cerebrovascular mortality. Daily 3-hour maximum apparent temperature (Tapp(max)) per 7 °C interquartile range increase was evaluated on Cardiovascular, respiratory, and cerebrovascular mortality (-7% change in cardiovascular mortality per 7 °C IQR increase, 95% CI -13% to -1%). A 7 °C interquartile range increase in maximum apparent temperature was inversely associated with cardiovascular mortality (-7%; 95% CI -13% to -1%).
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