Table 5 Expression of VEGF, VEGFR-1, and VEGFR-2 covaries
| Â | VEGFR-1 | VEGFR-2 |
|---|---|---|
VEGF | ||
 P-value | 0.00025 | 3.07e-06 |
 χ value | 21.54 | 31.21 |
VEGFR-1 | ||
 P-value |  | 0.019 |
 χ value |  | 11.79 |
| Â | VEGFR-1 | VEGFR-2 |
|---|---|---|
VEGF | ||
 P-value | 0.00025 | 3.07e-06 |
 χ value | 21.54 | 31.21 |
VEGFR-1 | ||
 P-value |  | 0.019 |
 χ value |  | 11.79 |