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. 2023 Sep 26;31(1):178–191. doi: 10.1245/s10434-023-14308-3

Table 2.

Univariate and multivariable analysis of recurrence-free survival

Univariate analysis Multivariable analysis
Item HR (95% CI) p-value (Wald’s test) p-value (LR test) Adj. HR 95% CI Adj. p-value
Sex: male versus Female 0.67 (0.35, 1.29) 0.233 0.209
Age: < 65 versus ≥ 65 years 1.12 (0.73, 1.71) 0.615 0.618
Smoker: yes versus no 1.08 (0.7, 1.68) 0.728 0.727
Drinker: yes versus no 1.17 (0.75, 1.81) 0.49 0.486
Location: ref. Up 0.211
Middle 1.75 (0.88, 3.48) 0.112
Low 1.37 (0.69, 2.74) 0.368
Differentiation: ref. well < 0.001 1.4 (0.88~2.24) 0.157
Middle 12.77 (1.76, 92.75) 0.012
Poor 12.19 (1.68, 88.58) 0.013
Surgical margin: positive versus negative 1.78 (0.44, 7.24) 0.42 0.460
Nerve Invasion: positive versus negative 2.22 (1.42, 3.47) < 0.001 0.001 2.05 (0.73~5.81)) 0.175
Lymph vascular invasion: positive versus negative 2.75 (1.61, 4.72) < 0.001 < 0.001 2.36 (0.94~5.89) 0.067
cT: ref. 2 0.392
 3 0.81 (0.39, 1.68) 0.567
 4a 0.67 (0.25, 1.78) 0.416
 4b 1.36 (0.55, 3.39) 0.507
cN: ref. 0 0.288
 1 0.89 (0.27, 2.92) 0.85
 2 0.79 (0.24, 2.55) 0.694
 3 1.43 (0.42, 4.94) 0.57
ypT: ref. 0 0.016 1.03(0.51~2.1) 0.929
 1 1.4 (0.76, 2.6) 0.285
 2 0.81 (0.41, 1.57) 0.531
 3 1.9 (1.17, 3.09) 0.009
 4 3.49 (1.06, 11.44) 0.039
ypN: ref. 0 < 0.001 0.81 (0.34~1.93) 0.634
 1 1.99 (1.26, 3.14) 0.003
 2 2.86 (1.6, 5.1) < 0.001
 3 5.47 (0.75, 40) 0.094
AJCC/TNM stage: ref. 0 0.002 1.58 (0.17~14.33) 0.683
 I 0.87 (0.46, 1.67) 0.682
 II 1.26 (0.63, 2.54) 0.517
 III 2.27 (1.37, 3.77) 0.002
 IV 3.37 (1.01, 11.27) 0.048
pCR: yes versus no 1.57 (0.98, 2.51) 0.06 0.051 0.1 (0.01~0.86) 0.036
PT–TRG: ref. 0 0.024 0.73 (0.34~1.6) 0.435
 1 0.9966 (0.56, 1.75) 0.991
 2 1.63 (1, 2.66) 0.048
3 2.55 (1.28, 5.07) 0.008
LN–TRG: 0–2 versus 3–4 2.97(1.97, 4.48) < 0.001 < 0.001 3.62 (1.03~12.74) 0.045
Total carcinoma diameter (lymph node) (cont. var.) 2.71 (1.6~4.58) < 0.001 < 0.001 1.95 (0.82~4.62) 0.129
Number of lymph nodes dissected (cont. var.) 0.9962 (0.9714, 1.0215) 0.765 0.764
WBC grade: 0–2 versus 3–4 1.15 (0.76, 1.75) 0.514 0.517
Hb grade: 0–2 versus 3–4 1.99 (0.27, 14.34) 0.497 0.54
Platelet grade: 0–2 versus 3–4 5.25 (1.92, 14.33) 0.001 0.01 2.5 (0.4~15.69) 0.327
Neutrophil grade: 0–2 versus 3–4 1.23 (0.8, 1.89) 0.349 0.355
Myelosuppression grade: 0–2 versus 3–4 1.11 (0.73, 1.68) 0.617 0.619

Bold indicates that the difference is statistically significant