Table 1 Descriptive Statistics for Variables
From: PM2.5 exposure and anxiety in China: evidence from the prefectures
| Variable | Mean | S. D. | Minimum | Maximum | |
|---|---|---|---|---|---|
| Anxiety | overall | −14.36 | 61.42 | − 1070.88 | 555.21 |
| between | 63.28 | − 527.52 | 170.85 | ||
| within | 28.5 | − 611.8 | 369.99 | ||
|
GDP (10 million YUAN) | overall | 25,260.21 | 34,796.64 | 1534.09 | 326,799 |
| between | 33,197.75 | 1877.55 | 252,222.6 | ||
| within | 9278.67 | −38,063.65 | 102,245 | ||
|
Housing price (YUAN) | overall | 7786.84 | 6278.27 | 662 | 58,654 |
| between | 5068.98 | 3069 | 46,223.83 | ||
| within | 2151.64 | − 8736.33 | 22,153.67 | ||
|
Urbanization rate (%) | overall | 55.82 | 14.33 | 24.69 | 100 |
| between | 14.1 | 26.5 | 99.92 | ||
| within | 2.38 | 46.06 | 72.01 | ||
| Internet development level | overall | 0.22 | 0.41 | 0.01 | 11.21 |
| between | 0.30 | 0.04 | 4.41 | ||
| within | 0.28 | −1.66 | 9.50 | ||
| PM2.5 | overall | 53.8 | 28.92 | 8.58 | 210 |
| (μg·m−3) | between | 17.65 | 9.71 | 109.61 | |
| within | 22.99 | 6.24 | 172.05 | ||
| Number of medical institutions | overall | 532.79 | 1422.40 | 16.67 | 50,800 |
| between | 716.09 | 33.33 | 10,403.64 | ||
| within | 1224.46 | − 9543.58 | 40,929.15 | ||
| Total hospital beds | overall | 49,875.04 | 62,720.37 | 500 | 2,411,300 |
| between | 31,345.24 | 1000 | 435,039.4 | ||
| within | 54,456.75 | − 353,626.3 | 2,026,136 | ||
| Number of physicians | overall | 24,855.84 | 27,461.73 | 50 | 934,500 |
| between | 16,064.50 | 91.67 | 165,586.6 | ||
| within | 22,415.29 | − 132,360.9 | 793,769.2 | ||