Table 1 Daily weather conditions, YLL and death counts of COPD in Ningbo, China, 2011–2015
Variables | Mean ± SD | Minimum | 25th | Median | 75th | Maximum |
|---|---|---|---|---|---|---|
PM2.5 (μg/m3) | 49.58 ± 32.36 | 5.86 | 28.25 | 41.73 | 61.25 | 421.71 |
PM10 (μg/m3) | 78.59 ± 48.19 | 12.86 | 44.94 | 66.33 | 97.97 | 543.88 |
SO2 (μg/m3) | 21.34 ± 13.84 | 5.38 | 12.14 | 16.94 | 25.73 | 112.6 |
NO2 (μg/m3) | 43.41 ± 18.65 | 7.62 | 30.12 | 40.61 | 55 | 121.8 |
Temperature (°C) | 17.49 ± 8.94 | −1.67 | 10 | 18.89 | 24.44 | 34.44 |
Relative humidity (%) | 76.41 ± 12.25 | 31 | 68 | 77 | 86 | 100 |
Years of life lost (years) | ||||||
Total | 80 ± 40 | 0 | 51 | 73 | 102 | 278 |
Age < 75 years | 19 ± 20 | 0 | 0 | 13 | 30 | 136 |
Age ≥ 75 years | 61 ± 30 | 0 | 39 | 55 | 77 | 227 |
Male | 46 ± 27 | 0 | 26 | 42 | 62 | 174 |
Female | 34 ± 22 | 0 | 17 | 30 | 46 | 161 |
Married | 44 ± 27 | 0 | 24 | 39 | 59 | 175 |
Widowed | 33 ± 20 | 0 | 18 | 29 | 45 | 144 |
Daily death counts (No. of deaths) | ||||||
Total | 10 ± 5 | 0 | 7 | 9 | 13 | 34 |
Age < 75 years | 1 ± 1 | 0 | 0 | 1 | 2 | 8 |
Age ≥ 75 years | 9 ± 4 | 0 | 6 | 8 | 11 | 33 |
Male | 6 ± 3 | 0 | 3 | 5 | 7 | 18 |
Female | 5 ± 3 | 0 | 3 | 4 | 6 | 20 |
Married | 5 ± 3 | 0 | 3 | 4 | 7 | 19 |
Widowed | 5 ± 3 | 0 | 3 | 5 | 7 | 20 |