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Table 1 Summary statistics of weather conditions, air pollution, and daily mortality for four cities in China during 2008–2011

From: The influence of temperature on mortality and its Lag effect: a study in four Chinese cities with different latitudes

Variables City Mean (STDa) Median (IQRb) Min Max
Temperature (°C) Wuhan 17.15(9.55) 18.1(16.1) –2.7 35.3
Changsha 18.27(9.35) 19.2(16.2) –3 35.5
Guilin 19.57(8.17) 21.3(13.8) –0.7 32.6
Haikou 23.90(4.76) 25.4(6.7) 8.7 31.6
Relative humidity (%) Wuhan 73.84(12.96) 75.0(17.0) 21.0 100.0
Changsha 72.95(13.06) 74.0(19.0) 28.0 96.0
Guilin 70.83(14.33) 71.0(19.0) 22.0 100.0
Haikou 80.54(8.01) 81.0(10.0) 47.0 98.0
Air Pollution Index Wuhan 77.77(33.64) 74.0(38.0) 14.0 500.0
Changsha 68.66(27.09) 67.0(29.0) 11.0 443.0
Guilin 51.77(19.44) 51.0(26.0) 15.0 179.0
Haikou 38.48(14.21) 35.0(21.0) 6.0 99.0
Daily non-accidental deaths Wuhan 20.94(7.74) 21.0(10.0) 1.0 49.0
Changsha 3.34(1.98) 3.0(2.0) 0.0 11.0
Guilin 1.16(1.13) 1.0(2.0) 0.0 6.0
Haikou 2.13(1.91) 2.0(2.0) 0.0 15.0
  1. aStandard deviation
  2. bInterquartile range