Heat wave timing and heat wave effects on CHD mortality in hot season (May–September) in Beijing during 2000–2011: percentage increase of CHD mortality on heat wave days compared with non-heat wave days; heat wave was defined by daily mean temperature ≥ 97.5^th percentile with duration ≥ 2 days.

<p>Heat wave timing and heat wave effects on CHD mortality in hot season (May–September) in Beijing during 2000–2011: percentage increase of CHD mortality on heat wave days compared with non-heat wave days; heat wave was defined by daily mean temperature ≥ 97.5^th percentile with duration ≥ 2 days.