Stepwise inclusion of variable | 2 × increase in partial log-likelihood (χ2 distributed) | df | P |
---|---|---|---|
Stage | 23.43 | 3 | < 0.0001 |
Estrogen receptor | 7.92 | 1 | 0.005 |
c-erbB2 | 7.34 | 1 | 0.01 |
Topoisomerase IIα | 9.85 | 1 | 0.002 |
Grading | 0.01 | 1 | 0.92 |
Topoisomerase IIα × grading | 4.64 | 1 | 0.03 |
c-erbB2 × grading | 1.74 | 1 | 0.19 |
c-erbB2 × topoisomerase IIα | 0.17 | 1 | 0.68 |