Table 1.
Baseline characteristics
| Characteristics | N = 259 |
|---|---|
| Age (years)—median (IQR) | 66 (55–76) |
| Male sex—no. (%) | 130 (50.2%) |
| FAP—no. (%) | 43 (16.6%) |
| Presenting symptoms—no. (%) | |
| Coincidental finding | 113 (43.6%) |
| Unknown | 41 (15.8%) |
| FAP surveillance | 41 (15.8%) |
| Cholestasis without jaundice | 40 (15.4%) |
| Jaundice | 14 (5.4%) |
| Pancreatitis | 10 (3.9%) |
| Lesion size (mm)—mean ± SDa | 21.07 ± 1.79 |
| Lateral spreading—no. (%) | 72 (27.8%) |
| Intraductal extension—no. (%) | 38 (14.7%) |
| Pathology before resection | |
| LGD | 123 (47.5%) |
| HGD | 33 (12.7%) |
| Adenocarcinoma | 5 (1.9%) |
| Normal duodenal mucosa | 4 (1.5%) |
| Unknown | 94 (36.3%) |
FAP familial adenomatous polyposis, HGD high-grade dysplasia, IQR interquartile range, LGD low-grade dysplasia, SD standard deviation
aMissing in 115 cases