Table 1.
Comparison of social demographic, economic, and meteorological qualities between subgroups
| Variables | Less burdened areas (N = 30) | Burdened areas (N = 30) |
t/Z | P value |
|---|---|---|---|---|
| Average population (millions) | 93.11(56.07, 230.74) | 96.94(66.34, 142.34) | − 0.296 | 0.767 |
| Population increase rate (%) | 5.70(2.93, 7.75) | 6.08(1.14, 13.32) | − 0.451 | 0.652 |
| Population density (people/km2) | 1184.40(444.56, 1629.07) | 500.31(287.98, 893.66) | − 2.632 | 0.008 |
| Number of elementary school students (10,000) | 6.65(4.67, 16.96) | 7.60(5.26, 11.71) | − 0.444 | 0.657 |
| GDP (CNY) |
4608857.00 (2483430.00, 21241202.80) |
2659869.50 (1176241.00, 4537211.50) |
− 2.750 | 0.006 |
| GDP per person (CNY) |
55099.00 (36597.25, 66345.25) |
30374.00 (17131.75, 47843.25) |
− 3.947 | < 0.001 |
| GDP increase rate (%) | 14.39 ± 2.10 | 14.46 ± 3.38 | − 0.092 | 0.927 |
| Traffic passengers (10,000) |
9904.45 (4101.32, 20577.51) |
6844.86 (4567.86, 11211.64) |
− 1.124 | 0.261 |
| Number of hospitals (per thousand) | 48.00(28.50, 110.50) | 58.50(33.00, 94.25) | − 0.569 | 0.569 |
| Number of hospital beds (per thousand) | 7261.50(3342.00, 20019.00) | 4756.00(3237.50, 7554.25) | − 1.434 | 0.152 |
| Number of licensed doctors (per thousand) | 3623.00(1684.75, 9729.25) | 2198.50(1355.00, 3528.00) | − 1.959 | 0.050 |
| Per capita public green area (m2) | 36.00(28.25, 54.75) | 25.00(14.75, 33.00) | − 3.491 | < 0.001 |
| Average temperature (°F) | 176.96 ± 38.93 | 138.05 ± 51.39 | 3.306 | 0.002 |
| Average relative humidity (%) | 70.04 ± 8.63 | 65.85 ± 9.03 | 1.837 | 0.071 |
| Average rainfall (mm) | 35.89 ± 15.50 | 23.42 ± 11.72 | 3.514 | 0.001 |
| Average sunshine (min) | 50.81 ± 8.18 | 54.22 ± 15.08 | − 1.089 | 0.282 |