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Table 1 Summary statistics of daily deaths, air pollution concentrations and atmosphere variables in Wuhan, China, from 2002 to 2010

From: Individual-level modifiers of the acute effects of air pollution on mortality in Wuhan, China

variables Mean ± SD min P25 P50 P75 max
Daily deaths
 Deaths causes
  Total non-accidental 11.13 ± 3.98 1.00 8.00 11.00 14.00 34.00
  Cardiovascular 5.18 ± 2.67 0.00 3.00 5.00 7.00 23.00
  Respiratory 1.10 ± 1.17 0.00 0.00 1.00 2.00 10.00
 Gender
  Female 6.17 ± 2.76 0.00 4.00 6.00 8.00 18.00
  Male 4.96 ± 2.46 0.00 3.00 5.00 6.00 21.00
 Age
   < 65 years 2.83 ± 1.72 0.00 2.00 3.00 4.00 10.00
  65~ 75 years 2.68 ± 1.75 0.00 1.00 2.00 4.00 16.00
   ≥ 75 years 5.63 ± 2.80 0.00 4.00 5.00 7.00 18.00
Weather
 Relative humidity (%) 71.79 ± 12.61 21.00 63.00 73.00 81.00 98.00
 Temperature (°C) 17.88 ± 9.35 −2.70 9.70 19.00 25.90 35.80
Air pollutants concentration (μg/m3)
 PM10 118.65 ± 62.67 10.50 72.00 108.00 152.00 600.00
 SO2 49.26 ± 33.60 1.00 25.00 41.00 65.50 260.50
 NO2 58.32 ± 25.37 12.00 39.20 52.80 73.60 288.00