Table 2.
Cox univariate analysis of prognostic variables included in the NPI and Lpi, and NPI and Lpi.
| Variable | HR | 95% CI | P-value |
|---|---|---|---|
| Size (cm) | 1.081 | 1.028–1.136 | .0023 |
| pN | |||
| low versus high | 0.527 | 0.453–0.612 | <.0001 |
| pN | |||
| intermediate versus high | 0.630 | 0.512–0.775 | <.0001 |
| Grade | |||
| low versus high | 0.432 | 0.350–0.533 | <.0001 |
| Grade | |||
| intermediate versus high | 0.642 | 0.559–0.737 | <.0001 |
| Lymph node ratio | 1.427 | 1.328–1.533 | <.0001 |
| Grade | |||
| low and intermediate versus high | 2.644 | 2.057–3.398 | <.0001 |
HR: hazard ratio
pN: pathological nodal status