Table 1 Patient demographic characteristics
Characteristics | IPMN group (n = 108) | Control group (n = 106) | P value |
|---|---|---|---|
Mean age at presentation (SD, range) | 69 (8, 46–83) | 50 (17, 23–94) | < 0.001 |
Sex: female, n (%) | 68 (62.9) | 62 (58.5) | 0.576 |
MPD width, mean (SD), mm | 3.24 (1.65) | 2.02 (0.93) | < 0.001 |
Size of the major cyst, mean (SD), mm | 19.73 (1.02) | – | |
BD-IPMN, n (%) | 96 (88.9) | – | |
MD-IPMN, n (%) | 1 (0.9) | – | |
Mixed-type IPMN, n (%) | 11 (10.2) | – | |
Developmental variations | |||
Pancreas divisum, n (%) | 10 (9.3) | 6 (5.7) | 0.4371 |
Duct of Santorini, n (%) | 55 (50.9) | 30 (28.3) | |
Ansa pancreatica, n (%) | 15 (13.9) | 10 (9.4) | |
Absent duct of Santorini / ansa pancreatica, n (%) | 28 (25.9) | 60 (56.6) | |
Course of MPD at the pancreatic head2 | (n = 98) | (n = 100) | |
Non-MMPD, n (%) | 80 (81.6) | 97 (97.0) | |
Descending course, n (%) | 37 (37.8) | 51 (51.0) | |
Vertical course, n (%) | 10 (10.2) | 10 (10.0) | |
Sigmoid course, n (%) | 33 (33.7) | 36 (36.0) | |
MMPD, n (%) | 18 (18.4) | 3 (3.0) | < 0.0013 |
Reverse-Z type, n (%) | 8 (8.2) | 1 (1.0) | |
N-shape, n (%) | 6 (6.1) | 2 (2.0) | |
Loop up or down, n (%) | 4 (4.1) | 0 (0) |