Table 1.
Patient demographic and imaging findings
| AIP (n = 28) | PDAC (n = 77) | P value | |||||
|---|---|---|---|---|---|---|---|
| Age, years (mean ± SD) | 63.2 ± 12.9 | 67.5 ± 9.0 | 0.059 | ||||
| Sex | |||||||
| Male | 23 (82*) | 46 (60) | 0.018 | ||||
| Imaging findings | Sensitivity (%) | Specificity (%) | Accuracy (%) | AUC (%) | |||
| Duct-penetrating sign | 13 (46) | 60 (78) | 0.003 | 53.6 | 76.9 | 70.8 | 65.7 |
| Capsule-like rim | 17 (61) | 3 (4) | < 0.001 | 60.7 | 96.1 | 86.7 | 78.4 |
| Peripancreatic strands | 6 (21) | 21 (27) | 0.545 | 28.2 | 77.8 | 41.0 | |
| Multiple MPD strictures | 8 (29) | 8 (10) | 0.022 | 22.5 | 50.0 | 26.7 | 59.1 |
AIP, autoimmune pancreatitis; AUC, area under the curve; MPD, main pancreatic duct; PDAC, pancreatic ductal adenocarcinoma; SD, standard deviation; For univariate analysis,.
a
Values in parentheses indicate percentages.