Kaplan–Meier survival analysis comparing patients with PanIN-3 versus PanIN-1 or PanIN-2 as the highest grade of PanIN on the final pancreatic resection margin. The median survival for patients with PanIN-3 on resection margin (n = 15) was 20.7 months (1-year survival, 53%; 3-year survival, 28.3%), whereas it was 16.7 months for those with PanIN-1 or PanIN-2 as the highest grade of PanIN on resection margin (n = 92, 1-year survival, 65.6%; 3-year survival, 10.5%). These differences are not statistically significant (log-rank test, P = 0.87)