Baseline characteristics of the patients stratified by the allocation
| Maintenance therapy group (n=30) | Cessation group (n=19) | p Value | |
|---|---|---|---|
| Age (mean ±SD) | 63.4±7.7 | 63.1±10.0 | 0.90 |
| Gender, male (%) | 22 (73.3%) | 15 (78.9%) | 0.74 |
| Diagnosis based on ICDC | 0.49 | ||
| Definitive | 26 (86.7%) | 18 (94.7%) | |
| Probable | 3 (10%) | 0 (0%) | |
| AIP-NOS | 1 (3.3%) | 1 (5.3%) | |
| Parenchymal imaging | 0.56 | ||
| Diffuse | 14 (46.7%) | 11 (57.9%) | |
| Segmental/focal | 16 (53.3%) | 8 (42.1%) | |
| Ductal imaging | 0.30 | ||
| Long | 13 (43.3%) | 10 (52.6%) | |
| Segmental | 17 (56.7%) | 8 (42.1%) | |
| Other | 0 (0%) | 1 (5.3%) | |
| IgG4 (mg/dL; (mean ±SD)) | 532.9±617.2 | 387.3±273.2 | 0.34 |
| OOIs* | |||
| Cases with OOIs | 19 (63.3%) | 12 (63.2%) | 1.00 |
| Bile duct (proximal) | 12 (40.0%) | 6 (31.6%) | 0.55 |
| Bile duct (distal only) | 5 (16.7%) | 2 (10.5%) | 0.69 |
| Retroperitoneal fibrosis | 1 (3.3%) | 2 (10.5%) | 0.55 |
| Sialadenitis, dacryoadenitis | 4 (13.3%) | 6 (31.6%) | 0.16 |
| Interstitial nephritis | 2 (6.7%) | 2 (10.5%) | 0.64 |
| Diabetes mellitus | 14 (46.7%) | 12 (63.2%) | 0.38 |
*Including overlapping cases.
AIP-NOS, autoimmune pancreatitis-not otherwise specified; ICDC, International Consensus Diagnostic Criteria; OOIs, other organ involvements.