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Few data are available on the attributable burden, such as absolute excess or relative excess, of stroke death due to temperature.

We collected data on daily temperature and stroke mortality from 16 large Chinese cities during 2007–2013. First, we applied a distributed lag non-linear model to estimate the city-/age-/gender-specific temperature-mortality association over lag 0–14 days. Then, pooled estimates were calculated using a multivariate meta-analysis. Attributable deaths were calculated for cold and heat, defined as temperatures below and above the minimum-mortality temperature (MMT). Moderate and extreme temperatures were defined using cut-offs at the 2.5th and 97.5th percentiles of temperature.

The city-specific MMT increased from the north to the south, with a median of 24.9 ^oC. Overall, 14.5% (95% empirical confidence interval: 11.5–17.0%) of stroke mortality (114, 662 …