Table 4 The results of stepwise regressions in regions.
Region | EC | SC | SWC | NC | CC | NEC | NWC |
|---|---|---|---|---|---|---|---|
Constant | 54.056** (7.303) | 67.181** (− 7.428) | − 90.459** (− 3.672) | 86.833** (− 4.657) | 60.366** (− 7.615) | – | – |
P1 | – | – | – | – | – | – | – |
E1 | – | – | − 204.613** (− 3.077) | – | − 64.224** (− 3.325) | – | – |
E4 | − 72.687* (− 2.547) | – | – | – | – | – | – |
EC2 | – | − 52.889** (− 2.836) | – | – | – | – | – |
EC3 | – | – | – | − 80.653* (− 2.655) | – | – | – |
TA4 | – | – | 347.222** (5.370) | – | – | – | – |
Sample | n = 77 | n = 39 | n = 43 | n = 36 | n = 43 | n = 35 | n = 35 |
R2 | 0.080 | 0.179 | 0.519 | 0.172 | 0.212 | – | – |
Adjusted R2 | 0.067 | 0.156 | 0.482 | 0.147 | 0.193 | – | – |