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Cox's proportional hazards model of factors influencing survival rate
| Factors that may influence prognosis | P‐value | Risk (95% CI) |
|---|---|---|
| Adjacent lymphatic vessel invaded | 0.011 | 2.099 (1.90–3.705) |
| Peripancreatic neural invasion | 0.046 | 1.822 (1.010–3.289) |
| Regional lymphatic metastasis | 0.002 | 2.428 (1.385–4.256) |
| Major vascular invasion | 0.009 | 2.189 (1.212–3.953) |
| Extent of tumor differentiation | 0.221 | 1.424 (0.809–2.506) |
CI, confidence interval.
