Research Article
Survival Benefit of Adjuvant Radiation Therapy for Gastric Cancer following Gastrectomy and Extended Lymphadenectomy
Table 3
Cox multivariate regression analysis for overall survival.
| Variable | HR | 95% CI | value |
| No XRT | 1.00 | Reference | <0.001 | Adjuvant XRT | 0.67 | 0.64–0.71 | Age | | | | ≤60 | 1.00 | Reference | <0.001 | >60 | 1.49 | 1.42–1.57 | Gender | | | | Male | 1.00 | Reference | <0.001 | Female | 0.88 | 0.84–0.91 | Race | | | | White | 1.00 | Reference | | Black | 1.06 | 0.99–1.13 | 0.075 | Other | 0.77 | 0.73–0.81 | <0.001 | Lymph nodes | | | | LN <15 : >25 | 0.65 | 0.60–0.69 | <0.001 | LN 15–26 : >25 | 0.84 | 0.78–0.91 | <0.001 | Stage | | | | IA | 1.00 | Reference | | IB | 1.689 | 1.55–1.84 | 0.004 | II | 3.08 | 2.84–3.35 | <0.001 | IIIA | 4.44 | 4.08–4.83 | <0.001 | IIIB | 6.02 | 5.34–6.78 | 0.003 | IV (M0) | 7.14 | 6.52–7.82 | <0.001 |
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