Table 3.
Two-way interaction terms for significant factors affecting survival using multifactorial analysis with a Weibull hazard model
| Factors | DF | Chi squared | P value |
|---|---|---|---|
| Circumferential margin positivity |
1 |
5.7647 |
0.01* |
| Serum albumin level |
1 |
6.1745 |
0.01* |
| Circumferential margin positivity × serum albumin |
1 |
0.9343 |
0.33 |
| AJCC stage |
1 |
7.8196 |
0.005* |
| Circumferential margin positivity × AJCC stage |
1 |
1.6852 |
0.19 |
| AJCC stage × serum albumin level | 1 | 0.5503 | 0.45 |
× Interaction between two factors.
*Significant values.