Table 5 Comparison of STHs-related natural and social factors in four regions of Shandong Province
Regions | Annual average temperature (℃, mean ± SD ) | Annual average rainfall (mm, mean ± SD) | Per capita GNP (RMB, mean ± SD) | Annual net income per capita (RMB, mean ± SD) | Proportion of tap water as main drinking water (%) | Proportion of sanitary toilets (%) |
|---|---|---|---|---|---|---|
Northern region | 13.77 ± 0.96 | 544.64 ± 195.48 | 48,194.24 ± 32,656.93 | 15,432.52 ± 7782.53 | 96.00 (1/25) | 77.30 (9689/12,534) |
Eastern region | 13.12 ± 1.99 | 575.28 ± 166.27 | 79,762.14 ± 50,301.88 | 22,651.18 ± 18,379.52 | 86.15 (9/65) | 81.85 (52,400/64,023) |
Southern region | 14.69 ± 2.14 | 738.93 ± 299.22 | 27,027.48 ± 15,258.81 | 11,138.97 ± 6463.37 | 93.33 (11/165) | 59.78 (61,125/102,257) |
Central region | 14.35 ± 2.43 | 574.37 ± 220.21 | 34,166.26 ± 29,033.22 | 12,121.67 ± 8245.74 | 93.68 (6/95) | 58.34 (32,426/55,583) |
F / χ2 | 8.865 | 13.090 | 51.216 | 20.942 | 4.433 | 11,144.158 |
P-value |  < 0.001 |  < 0.001 |  < 0.001 |  < 0.001 | 0.218 |  < 0.001 |