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Figure 4 | Environmental Health

Figure 4

From: The effects of ambient temperature on cerebrovascular mortality: an epidemiologic study in four climatic zones in China

Figure 4

The effects of a 1°C decrease in temperature below the thresholds (left) and of a 1°C increase in temperature above the thresholds (right) on cerebrovascular deaths over 20 lag days using 4 degrees of freedom. The thick lines are point estimate for relative risk, and thin lines are 95% confidence intervals. The thresholds were 0.7°C in Beijing, −0.6°C Tianjin, 26.9°C Shanghai, 25°C Wuhan and 27.8°C Guangzhou.

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Environmental Health

ISSN: 1476-069X