Table 1.
Main characteristics of patients n (%)
| Characteristic | Total population, n = 124 | Surgical patients, n = 74 | Nonsurgical patients, n = 50 | P value1 |
| Age at diagnosis (yr), mean ± SD (range) | 64.4 ± 9.0 (33-82) | 61.2 ± 7.0 (33-73) | 69.0 ± 8.0 (58-2) | < 0.01 |
| Sex ratio, male:female | 74:50 | 46:28 | 28:22 | 0.57 |
| Associated non-pancreatic cancers2 | 26 (22.0) | 10 (13.5) | 16 (32.0) | 0.02 |
| Symptoms | 96 (77.5) | 61 (82.5) | 35 (70.0) | 0.12 |
| Acute pancreatitis | 45 (36.0) | 32 (43.0) | 13 (36.0) | 0.06 |
| Diabetes | 15 (12.0) | 12 (16.0) | 3 (6.0) | 0.10 |
| Jaundice | 13 (10.4) | 7 (13.5) | 6 (12.0) | 0.76 |
| Others | 23 (18.5) | 10 (13.5) | 13 (26.0) | 0.10 |
| Fortuitous | 28 (22.5) | 13 (17.5) | 15 (30.0) | 0.12 |
| Localization of IPMN | ||||
| Head | 93 (75.0) | 58 (78.5) | 35 (70.0) | 0.29 |
| Body | 12 (9.5) | 6 (8.5) | 6 (12.0) | 0.54 |
| Tail | 10 (8.0) | 5 (6.5) | 5 (10.0) | 0.52 |
| Diffuse | 9 (7.5) | 5 (6.5) | 4 (8.0) | 1.00 |
| Involvement of branch duct (mixed forms) | 101 (81.5) | 59 (79.0) | 42 (84.0) | 0.64 |
| Maximal diameter of main duct at diagnosis, mm | 7.6 ± 0.4 (6) | 7.2 ± 0.4 (6) | 8.3 ± 0.9 (6) | 0.19 |
| mean ± SD (median) | ||||
| Tissue nodule or wall thickening at imaging3 | 36 (29.0) | 21 (28.0) | 15 (30.0) | 0.84 |
| Malignant invasive IPMN | 62 (50.0) | 41 (55.5) | 21 (40.0)4 | 0.19 |
| Follow-up after diagnosis (mo), median (range) | 24 (162-6) | 24 (162-9) | 30 (141-6) | 0.85 |
| Death | 41 (33.0) | 19 (26.0) | 22 (44.0) | 0.05 |
1
Nonsurgical vs surgical groups;
2
Lung: n = 5, prostate: n = 7, hemopathy: n = 3, mammary: n = 3, colon: n = 2, miscellaneous: n = 6;
3
Main pancreatic duct or branch-duct cyst, or both, mainly visualized by endoscopic ultrasound;
4
Occurrence during follow-up in 18 patients. IPMN: Intraductal papillary mucinous neoplasm.