Retrospective Cohort Study
Copyright ©The Author(s) 2020.
World J Gastroenterol. Nov 21, 2020; 26(43): 6837-6852
Published online Nov 21, 2020. doi: 10.3748/wjg.v26.i43.6837
Table 5 Univariate and multivariate analyses of overall survival for included patients
VariableUnivariate
P valueMultivariate
P value
HR (95%CI)HR (95%CI)
Age, yr (≤ 65)0.831 (0.301-2.293)0.721--
Sex (female)0.493 (0.204-1.192)0.117--
BMI (≤ 25 kg/m2)0.703 (0.270-1.832)0.471--
ASA (I/II/III)1.440 (0.256-8.086)0.679--
Previous abdominal operation0.046 (0.000-250.286)0.482--
Primary site (L/M/LM)0.981 (0.707-1.360)0.908--
Tumor size (> 4 cm)2.607 (1.064-6.390)0.0361.180 (0.906-1.538)0.219
Neoadjuvant chemotherapy (Yes)1.369 (0.454-4,129)0.577--
Tumor grade (W/M/P/U)0.851 (0.578-1.253)0.415--
Lauren classification (I/D/M)0.949 (0.513-1.758)0.869--
pTNM stage (I/II/III)3.195 (1.518-6.724)0.0023.170 (1.461-6.878)0.004
Lymphovascular invasion (Yes)2.203 (0.906-5.358)0.081--
Neural infiltration (Yes)1.755 (0.715-4.304)0.219--
Surgical type (LaTSG/LaTG)2.977 (1.073-8.263)0.0362.876 (1.009-8.195)0.048
Operation time (> 210 min)1.130 (0.456-2.803)0.791--
Estimated blood loss (> 200 mL)1.261 (0.522-3.048)0.606--
Intraoperative blood transfusion (Yes)0.933 (0.273-3.192)0.912--
No. of retrieved lymph nodes (> 30)1.631 (0.590-4.511)0.346--
Proximal margin (> 3 cm)0.876 (0.362-2.120)0.770--
Distal margin (> 3 cm)0.500 (0.203-1.121)0.132--