Table 4 Univariate and multivariate Cox proportional hazards regression for overall survival
From: Impact of ABO blood group on the prognosis of patients undergoing surgery for esophageal cancer
Variables | Category | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|---|
HR | 95 % CI | P-value | HR | 95 % CI | P-value | ||
T stage | pT1+ pT2 | 1.00 | 1.00 | ||||
pT3+ pT4 | 2.64 | 1.91–3.65 | <0.001 | 1.82 | 1.23–2.70 | 0.002 | |
N stage | N0 | 1.00 | 1.00 | ||||
N1-3 | 2.35 | 1.71–3.23 | <0.001 | 1.62 | 0.80–3.29 | 0.161 | |
TNM stage | I + II | 1.00 | 1.00 | ||||
III | 2.61 | 1.88–3.61 | <0.001 | 1.65 | 1.13–2.42 | 0.011 | |
Grade | G1 | 0.75 | 0.50–1.05 | 0.82 | 0.56–1.22 | ||
G2 | 1.00 | 1.00 | |||||
G3 | 1.37 | 1.02–1.81 | 0.058 | 1.31 | 0.96–1.70 | 0.134 | |
Vascular invasion | Negative | 1.00 | 1.00 | ||||
Positive | 2.71 | 1.66–3.86 | <0.001 | 1.47 | 0.79–2.76 | 0.221 | |
Adjuvant treatment | No | 1.00 | 1.00 | ||||
Yes | 2.76 | 2.02–3.78 | <0.001 | 2.30 | 1.67–3.17 | <0.001 | |
Blood transfusion | No | 1.00 | 1.00 | ||||
Yes | 2.40 | 1.47–3.94 | <0.001 | 2.51 | 1.50–3.88 | <0.001 | |
ABO blood group | A | 1.00 | 1.00 | ||||
B | 1.25 | 0.89–1.77 | 1.43 | 1.01–2.06 | |||
O | 1.10 | 0.78–1.55 | 1.14 | 0.80–1.62 | |||
AB | 1.72 | 0.95–3.10 | 0.254 | 1.96 | 0.98–3.52 | 0.065 | |
ABO blood group | O | 1.00 | - | ||||
A/B/AB | 1.03 | 0.76–1.40 | 0.846 | - | |||