Table 1.
Summary statistics of daily hospital admissions, weather conditions, and air pollutants between 2015 and 2019 in Lanzhou, China.
| Min | 2.5th | 10th | 25th | M | 75th | 90th | 97.5th | Max | |
|---|---|---|---|---|---|---|---|---|---|
| Daily admissions | |||||||||
| CVD | 0 | 3 | 5 | 9 | 21 | 32 | 42 | 59 | 86 |
| Male | 0 | 1 | 3 | 6 | 13 | 20 | 28 | 40 | 60 |
| Female | 0 | 0 | 1 | 3 | 8 | 12 | 16 | 22 | 35 |
| <65 years | 0 | 1 | 2 | 5 | 12 | 18 | 25 | 35 | 55 |
| ≥65years | 0 | 1 | 2 | 4 | 9 | 14 | 19 | 27 | 41 |
| Weather | |||||||||
| Temperature (°C) | −12.28 | −5.30 | −2.70 | 2.00 | 12.60 | 20.00 | 23.60 | 27.30 | 30.78 |
| DTR (°C) | 1.40 | 4.30 | 6.40 | 9.10 | 12.20 | 15.00 | 17.60 | 20.00 | 25.80 |
| Relative humidity (%) | 12.30 | 24.39 | 31.26 | 39.29 | 50.80 | 61.80 | 70.80 | 81.00 | 95.80 |
| Wind speed (m/s) | 0 | 0.3 | 0.5 | 0.8 | 1.1 | 1.4 | 1.9 | 2.6 | 6.0 |
| Air pollution (μg/m³) | |||||||||
| SO2 | 4.00 | 5.00 | 7.00 | 10.00 | 15.00 | 26.00 | 41.00 | 55.00 | 84.00 |
| NO2 | 13.00 | 22.00 | 29.00 | 38.00 | 50.00 | 64.00 | 84.00 | 104.22 | 150.00 |
| PM2.5 | 9.00 | 16.78 | 22.00 | 30.00 | 42.00 | 57.00 | 82.00 | 116.23 | 278.00 |