Table 1. Summary statistics of daily asthma admissions, meteorological factors and air pollutants over 2922 days.
| daily data | Mean | SD a | Min | p(1) | p(25) | Median | p(75) | p(99) | Max |
| Asthma | 5.6 | 3.3 | 1.0 | 0.0 | 3.0 | 5.0 | 7.0 | 15.0 | 29.0 |
| spring | 5.2 | 3.1 | 1.0 | 0.0 | 3.0 | 5.0 | 7.0 | 15.0 | 24.0 |
| summer | 5.0 | 2.7 | 1.0 | 0.0 | 3.0 | 5.0 | 7.0 | 16.0 | 15.0 |
| autumn | 5.8 | 3.1 | 1.0 | 0.0 | 4.0 | 6.0 | 8.0 | 14.0 | 18.0 |
| winter | 6.6 | 3.9 | 1.0 | 0.0 | 4.0 | 6.0 | 9.0 | 18.0 | 29.0 |
| Meteorological factors | |||||||||
| DMT(°C) | 17.4 | 9.2 | −3.4 | 0.2 | 9.4 | 18.7 | 25.1 | 32.7 | 35.7 |
| DLT(°C) | 14.3 | 9.3 | −6.8 | −3.6 | 6.3 | 15.1 | 22.5 | 29.1 | 31.8 |
| DHT(°C) | 21.1 | 9.4 | −0.4 | 2.8 | 13.2 | 22.4 | 28.7 | 37.1 | 39.4 |
| RH(°C) | 69.5 | 12.3 | 23.0 | 38.0 | 62.0 | 70.0 | 79.0 | 92.0 | 95.0 |
| JS(mm) | 31.2 | 98.8 | 0.0 | 0.0 | 0.0 | 0.0 | 10.0 | 451.5 | 1284.0 |
| WS(m/s) | 3.0 | 1.1 | 0.4 | 1.2 | 2.3 | 2.9 | 3.6 | 6.1 | 10.5 |
| Air pollutants | |||||||||
| SO2(ug/m3) | 41.8 | 27.8 | 5.0 | 9.0 | 21.0 | 34.0 | 56.0 | 130.0 | 229.0 |
| NO2(ug/m3) | 53.5 | 21.7 | 6.0 | 14.0 | 38.0 | 51.0 | 66.0 | 118.8 | 155.0 |
| PM10(ug/m3) | 82.1 | 54.8 | 10.0 | 20.2 | 46.0 | 69.0 | 102.0 | 253.5 | 792.0 |
DMT: daily mean temperature; DLT: daily lowest temperature; DHT: daily highest temperature; RH: relative humidity; JS: rainfall; WS: wind speed.
a
Standard deviation.