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. 2021 Jul 15;8:642468. doi: 10.3389/fsurg.2021.642468

Table 3.

Univariate and multivariate Cox regression analysis for OS of patients with stage II/III GC.

Variables No. of patients
(n = 3,103)
Univariate analysis Multivariate analysis
Hazard ratio
(95% CI)
χ2 p-value Hazard ratio
(95% CI)
χ2 p-value
Gender
    Male 2,416 (77.86) 1.00
    Female 687 (22.14) 0.95 (0.81–1.11) 0.45 0.503
Age (years)
    ≤60 1,396 (44.99) 1.00 1.00
    >60 1,707 (55.01) 1.31 (1.15–1.50) 15.66 <0.001 1.41 (1.23–1.62) 23.84 <0.001
Tumor location
    Upper third 1,480 (47.7) 1.00 1.00
    Middle third 605 (19.5) 1.14 (0.96–1.36) 2.12 0.145 0.89 (0.73–1.09) 1.21 0.271
    Lower third 946 (30.49) 1.05 (0.90–1.23) 0.44 0.507 1.1 (0.93–1.29) 1.30 0.255
    Whole stomach 72 (2.32) 1.71 (1.18–2.48) 8.07 0.004 0.9 (0.6–1.35) 0.25 0.617
SRC proportion
    0% (pure AC) 2,619 (84.4) 1.00 1.00
    1–50% (mixed-SRC) 299 (9.64) 1.29 (1.04–1.61) 5.29 0.021 1.30 (1.04–1.62) 5.17 0.023
    51–100% (SRC) 185 (5.96) 1.62 (1.27–2.05) 15.68 <0.001 1.60 (1.26–2.03) 14.56 <0.001
Surgical type
    Subtotal 2,351 (75.77) 1.00 1.00
    Total 741 (23.88) 1.71 (1.48–1.97) 52.93 <0.001 1.49 (1.25–1.77) 19.88 <0.001
    Combined organs 11 (0.35) 2.66 (1.19–5.94) 5.71 0.017 2.16 (0.95–4.91) 3.37 0.067
Borrmann's type
    I 349 (11.42) 1.00 1.00
    II 438 (14.33) 0.82 (0.62–1.09) 1.84 0.175 0.71 (0.53–0.95) 5.51 0.019
    III 1,790 (58.55) 1.05 (0.85–1.29) 0.17 0.680 0.89 (0.72–1.1) 1.17 0.279
    IV 480 (15.7) 1.67 (1.31–2.12) 17.28 <0.001 1.15 (0.9–1.48) 1.22 0.270
pT stage
    T1 48 (1.55) 1.00 1.00
    T2 229 (7.38) 4.82 (1.17–19.88) 4.75 0.029 4.58 (1.11–18.87) 4.43 0.035
    T3 833 (26.84) 5.52 (1.37–22.19) 5.8 0.016 5.20 (1.29–20.91) 5.40 0.020
    T4 1,993 (64.23) 9.21 (2.30–36.80) 9.87 0.002 8.73 (2.18–34.90) 9.39 0.002
pN stage
    N0 682 (21.98) 1.00 1.00
    N1 623 (20.08) 1.37 (1.07–1.76) 6.08 0.014 1.19 (0.85–1.67) 1.05 0.306
    N2 750 (24.17) 2.06 (1.64–2.58) 38.61 <0.001 1.59 (1.09–2.31) 5.79 0.016
    N3 1,048 (33.77) 3.14 (2.55–3.88) 115.07 <0.001 1.97 (1.35–2.86) 12.48 <0.001
pTNM stage
    II 1,034 (33.32) 1.00 1.00
    III 2,069 (66.68) 2.72 (2.29–3.22) 130.21 <0.001 1.41 (1.00–1.98) 3.83 0.050
Lymphovascular invasion
    Yes 574 (18.5) 1.88 (1.61–2.19) 65.1 <0.001 1.45 (1.23–1.71) 20.10 <0.001
    No 2,529 (81.5) 1.00 1.00
Perineural invasion
    Yes 158 (5.09) 1.41 (1.07–1.87) 5.89 0.015 1.19 (0.89–1.59) 1.33 0.249
    No 2,945 (94.91) 1.00 1.00
Adjuvant therapy
    Yes 2,093 (67.45) 0.82 (0.62–1.09) 1.84 0.175
    No 1,010 (32.55) 1.00

GC, gastric carcinoma; AC, adenocarcinoma; SRC, signet ring cell; CI, confidence interval; pT, pathological tumor; pN, pathological node; pTNM, pathological tumor–node–metastasis.

All p < 0.05 are in bold print.