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. Author manuscript; available in PMC: 2012 Jun 4.
Published in final edited form as: Epidemiology. 2009 Mar;20(2):205–213. doi: 10.1097/EDE.0b013e318190ee08

TABLE 2.

Increased Risk of Mortality for Later Days of a Heat-Wave Event Compared With Non-Heat-Wave Days Under Different Heat Wave Definitions

Intensity Duration
≥2 Days
≥4 Days
Estimate % 95% PI No. Communities Estimate % 95% PI No. Communities
≥98th percentile 3.2 2.1–4.3 107 3.9 2.1–6.0 107
≥99th percentile 4.3 2.7–5.9 107 6.5 2.7–10.5 105
≥99.5th percentile 6.1 4.0–8.2 107 10.6 6.1–15.3 81