Table 4. Contribution of Each Independent Variable to the Model and Its Statistical Significance.
| B | SE | Wald | DF | Sig | Exp (B) | 95% CI for Exp (B) |
||
|---|---|---|---|---|---|---|---|---|
| Lower | Upper | |||||||
| Step 1a | ||||||||
| Smoking (1) | 0.331 | 1.066 | 0.096 | 1 | 0.756 | 1.392 | 0.172 | 11.248 |
| Location | 3.610 | 2 | 0.164 | |||||
| Location (1) | -0.185 | 2.100 | 0.008 | 1 | 0.930 | 0.831 | 0.014 | 50.999 |
| Location (2) | 2.196 | 1.191 | 3.397 | 1 | 0.05 | 8.985 | 0.870 | 92.801 |
| Extra salt (1) | -1.596 | 1.077 | 2.198 | 1 | 0.138 | 0.203 | 0.025 | 1.672 |
| Morphology | 4.340 | 2 | 0.114 | |||||
| Morphology (1) | 1.464 | 1.443 | 1.029 | 1 | 0.310 | 4.324 | 0.256 | 73.155 |
| Morphology (2) | 2.358 | 1.132 | 4.340 | 1 | 0.037 | 10.573 | 1.150 | 97.220 |
| Stage T (1) | -4.326 | 1.501 | 8.307 | 1 | 0.004 | 0.013 | 0.001 | 0.250 |
| Stage N (1) | -1.590 | 1.108 | 2.058 | 1 | 0.151 | 0.204 | 0.023 | 1.790 |
| Stage M | 0.000 | 2 | 1.000 | |||||
| Stage M (1) | 18.106 | 40192.971 | 0.000 | 1 | 1.000 | 73013299.578 | 0.000 | |
| Stage M (2) | -0.001 | 1.730 | 0.000 | 1 | 1.000 | 0.999 | 0.034 | 29.659 |
| Sex (1) | -0.529 | 0.999 | 0.280 | 1 | 0.597 | 0.589 | 0.083 | 4.177 |
| H. pylori (1) | -2.678 | 1.062 | 6.359 | 1 | 0.012 | 0.069 | 0.009 | 0.551 |
| Grading | 6.980 | 2 | 0.031 | |||||
| Grading (1) | -19.315 | 21121.983 | 0.000 | 1 | 0.999 | 0.000 | 0.000 | |
| Grading (2) | 3.850 | 1.457 | 6.980 | 1 | 0.008 | 46.973 | 2.701 | 816.839 |
| Age group | -5.221 | 1.907 | 7.496 | 1 | 0.006 | 0.005 | 0.000 | 0.227 |
| Constant | 2.308 | 1.974 | 1.367 | 1 | 0.242 | 10.053 | ||
aVariable (s) entered on step 1: smoking, location, extra salt, morphology, stage T, stage N, stage M, sex, H. pylori, grading, and age. SE: standard error; DF: degree of freedom; Sig: significance level; Exp (B): exponentiation of the B coefficient, which is an odds ratio.