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Table 1 Summary statistics of data on hospital admissions and stays of sepsis, air pollutants, and weather conditions in 6 Sichuan cities, 2017–18

From: Sepsis-related hospital admissions and ambient air pollution: a time series analysis in 6 Chinese cities

  Number (%) Mean SD MIN Median MAX Range
Hospital admissions of sepsis
 total 58,064 13 9 7 11 30 23
 0 ~ 13 years 16,325 (28.1%) 4 3 1 3 9 7
 14 ~ 65 years 28,905 (49.8%) 7 4 4 5 14 10
  > 65 years 12,834 (22.1%) 3 2 0 3 8 7
 male 24,764 (42.6%) 6 4 3 5 13 10
 female 33,300 (57.4%) 8 5 4 6 17 12
Hospital stays of sepsis 119 88 57 91 288 231
24-h average air pollutant concentrations, μg/m3
 PM2.5   41.4 13.2 17.6 45.0 54.9 37.3
 PM10   63.8 15.9 35.0 67.4 77.8 42.8
 NO2   12.1 3.6 8.2 11.1 18.4 10.2
 SO2   25.3 7.8 12.9 25.9 36.8 23.8
 O3   82.7 7.9 74.1 82.8 93.0 18.9
 CO   0.8 0.1 0.6 0.8 0.9 0.3
24-h average weather conditions
 temperature   17.5 1.2 15.5 17.6 18.8 3.4
 relative humidity   76.3 5.2 66.9 78.0 81.7 14.9
  1. Abbreviations: SD standard deviation; MIN minimal; MAX maximal