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Table 1 Summary statistics for daily CVD deaths and meteorological variables in summer in Beijing, from 2010–2012

From: The association between consecutive days’ heat wave and cardiovascular disease mortality in Beijing, China

Category Minimum 25% Median 75% Maximum Mean ± SD
Daily meteorological data
 Maximum temperature (°C) 23.2 29.5 31.1 33 40.6 31.2±2.9
  Mean relative humidity (%) 21 56.8 66 75 97 64.7±14.6
  Mean air pressure (hPa) 990.4 998.1 1001 1004 1014 1001±4.6
Deaths by age
 ≥65 years of age 39 62 71 79 144 71.9±12.9
 0–64 years of age 6 13 15 18 36 15.7±4.3
Deaths by sex
 Male 24 38 44 50 88 44.4±7.5
 Female 20 36 42 49 92 42.5±8.1
Deaths by occupation
 Outdoor 18 29 33 39 78 32.5±8
 Indoor 17 33 38 44 67 37.6±7.1
 Unemployed 2 7 9 12 19 9.5±4.3
 Unknown 0 3 5 7 17 4.7±2.9