Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Relative risk (RR) of relapse on the basis of a three-variable model
| Parameter | RR | Wald P value |
| Nodes (continuous variable) | 1.06 | 0.002 |
| EGFR (RT-PCR) | 3.98 | 0.00002 |
| p21 (IHC, low) | 2.49 | 0.004 |
EGFR, epidermal growth factor receptor; IHC, immunohistochemistry.
