Table 2

Univariate analysis of associations of patient, tumor, treatment, and pathologic characteristics with survival

Variable	Time to failure survival		Overall survival
Variable	95% CI	P value	95% CI	P value
TNM stage	4.906–18.427	0.216	7.128–41.206	0.007*
IORT dose ≤ 15 (vs. > 15)	2.382–12.818	0.530	0.001–56.159	0.984
D-dimer < 500 (vs. ≥ 500)	4.906–18.427	0.005*	10.267–38.067	0.016*
CEA < 5 (vs. ≥ 5)	4.906–18.427	0.036*	7.790–20.610	0.002*
CA19-9 < 37 (vs. ≥ 37)	0.715–16.219	0.112	10.520–18.946	0.001*

↵*P < 0.05 was considered statistically significant. CI, confidence interval.