Table 2. Final model derived from the primary cohort.

Predictor	P value	HR	95% CI
T stage, AJCC 7th ed
Tis–T1
T2–T4	0.0130	2.49	1.73–3.60
Lymph node
NA
Positive	<0.001	3.97	3.19–4.94
Fibrinogen	0.0049	1.32	1.19–1.45

CI, confidence interval; HR, hazard ratio.