Prognostic factor Univariate P Multivariate P Hazard ratio 95%CIa
Age, <75 vs.≥75 years 0.61 b b b
Sex 0.57 b b b
Performance status,
0 or 1 vs. 2
0.04 0.01 1.64 1.12-2.39
Dysphagia 0.10 0.71 1.08 0.73-1.59
Body weight loss≥10%,
yes vs. no
0.02 0.03 1.79 1.06-3.01
Anemia, yes vs. no 0.92 b b b
T-stage,
T2or 3 vs. T4
0.92 b b b
Lymphnode
N1 vs. M1(LYM)
0.47 0.13 1.19 0.95-1.51
Primary tumor length,
<5 vs.≥5 cm
0.19 0.27 1.50 0.73-3.09
aConfidence interval.
bExcluded from multivariate analyses because of P ≥ 0.5 in univariate analyses.1 Values of P<0.05 were considered significant.
Table 4: Uni- and multivariate analyses of prognostic factors.