Table 6.
Multivariate Cox Regressions Analysis Using Factors with Sufficient Statistical Power (P <0.1) in Univariate Analysis and (Part A). Results of a Forward and Backward Variable Selection Procedure (Analysis of Likelihood) for Those Factors (Part B)
| Factor | Parameter estimate | Standard error | Hazard ratio | P value |
|---|---|---|---|---|
| A. Tumor stage | ||||
| IIA+ B | 1.76 | 0.40 | 5.83 | 0.0001 |
| IIIA+ B+ IV | 1.93 | 0.40 | 6.92 | 0.0001 |
| Gender | 1.33 | 0.37 | 3.78 | 0.0004 |
| bHPA | 2.23 | 1.06 | 9.34 | 0.03 |
| PHA-L | 0.64 | 0.43 | 1.88 | 0.14 |
| UEA-I | 0.63 | 0.54 | 1.88 | 0.24 |
| B. Tumor stage | ||||
| IIA+ B | 1.79 | 0.39 | 6.00 | 0.0001 |
| IIIA+ B+ IV | 2.14 | 0.39 | 8.53 | 0.0001 |
| Gender | 1.29 | 0.37 | 3.65 | 0.0004 |
| bHPA | 2.17 | 1.06 | 8.75 | 0.04 |