However, pancreatic duct dilation and lymph node (LN) metastasis showed a trend toward poorer survival, with a HR of 3.728 (95% confidence interval [CI] 0.815–17.053; p = 0.090) and 4.369 (95% CI, 0.858–22.233; p = 0.076), respectively ( Table 4 ).
However, KM survival analysis based on LN positivity showed that patients with N0 had not reached a median overall survival (OS), whereas those with N1 had a median OS of 37 months although the difference did not reach statistical significance. 3.6.
In the present study, however, there were no statistically significant factors, although LN metastasis and pancreatic duct infiltration showed marginal significance.