Table 1.
General Characteristics of the Study Variables in 364 Locations across China
| Mean (SD) | Minimum | 25th Centile | Median | 75th Centile | Maximum | |
|---|---|---|---|---|---|---|
| Daily nonaccidental YLL ratea | ||||||
| Total | 22.5 (23.4) | 0.0 | 12.0 | 19.5 | 28.5 | 1,020.4 |
| Cardiovascular disease | 8.0 (12.5) | 0.0 | 2.5 | 5.8 | 10.4 | 799.1 |
| CED | 3.9 (6.6) | 0.0 | 0.0 | 2.3 | 5.3 | 324.3 |
| Respiratory disease | 2.2 (4.4) | 0.0 | 0.0 | 1.0 | 3.0 | 620.4 |
| Sex | ||||||
| Male | 26.6 (30.3) | 0.0 | 11.6 | 21.9 | 35.0 | 1,826.0 |
| Female | 18.2 (24.6) | 0.0 | 6.1 | 13.8 | 24.2 | 1,372.5 |
| Age (years) | ||||||
| 0–64 | 13.9 (18.0) | 0.0 | 4.2 | 10.8 | 19.2 | 994.7 |
| 65–74 | 69.7 (100.7) | 0.0 | 0.0 | 54.0 | 97.2 | 4,824.5 |
| ≥75 | 138.2 (142.3) | 0.0 | 66.1 | 119.3 | 182.7 | 5,077.2 |
| Region | ||||||
| Northern | 22.9 (15.9) | 0.0 | 11.8 | 20.4 | 30.7 | 359.0 |
| Central | 24.7 (38.6) | 0.0 | 11.9 | 19.2 | 28.0 | 1,020.4 |
| Southern | 21.6 (15.3) | 0.0 | 12.1 | 19.4 | 28.3 | 928.5 |
| Meteorological variable | ||||||
| Daily mean temperature (°C) | 15.9 (9.9) | −32.3 | 9.5 | 17.5 | 23.4 | 35.6 |
| Daily maximum temperature (°C) | 20.5 (10.0) | −27.2 | 14.1 | 22.3 | 28.1 | 41.2 |
| Daily minimum temperature (°C) | 11.8 (10.4) | −36.2 | 5.3 | 13.2 | 19.8 | 30.7 |
| Temperature variability (°C) | 9.3 (3.9) | 0.3 | 6.3 | 9.4 | 12.3 | 23.2 |
| Daily RH (%) | 72.4 (15.6) | 5.0 | 63.0 | 75.0 | 84.0 | 100.0 |
| PM10 (μg/m3) | 81.6 (41.1) | 8.3 | 51.4 | 76.7 | 103.0 | 767.3 |
a
YLL rate was the average YLL per 100,000 population.