| Relapsed group (N = 33) | Non-relapsed group (N = 18) | P value |
---|---|---|---|
Age, years | 62.7 ± 13.8 | 62.6 ± 7.4 | 0.985 |
Sex | Â | Â | Â |
 Male, n (%) | 25(75.8) | 12(66.7) | 0.714 |
 Female, n (%) | 8(24.2) | 6(33.3) |  |
BMI | 22.2 ± 2.5 | 22.3 ± 2.1 | 0.831 |
Past history | Â | Â | Â |
 Diabetes, n (%) | 7(21.2) | 3(16.7) | 0.983 |
 Smoke, n (%) | 16(48.5) | 9(50) | 0.918 |
 Alcohol, n (%) | 15(45.5%) | 11(61.1) | 0.285 |
Clinical symptoms | Â | Â | Â |
 Obstructive jaundice, n (%) | 23(69.7) | 11(61.1) | 0.534 |
 Abdominal pain, n (%) | 19(57.6) | 8(44.4) | 0.369 |
 Acute pancreatitis, n (%) | 1(3.0) | 2(11.1) | 0.583 |
 Lose weight, n (%) | 15(45.5) | 8(44.4) | 0.945 |
Laboratory tests | Â | Â | Â |
 IgG4, mg/dL | 1190.0(556.5–2420.0) | 588.0(319.8–964.8) | 0.008 |
 TB, umol/L | 71.2(30.8–166.3) | 69.6(17.6–194.0) | 0.921 |
 Cr, umol/L | 63.3(54.7–73.5) | 64.7(51.4–67.9) | 0.775 |
 WBC, × 109/L | 6.1(5.3–7.7) | 5.2(4.6–6.7) | 0.200 |
 LDH, U/L | 155.9(128.3–187.0) | 153.9(137.2–186.5) | 0.937 |
Initial treatment | Â | Â | Â |
 Glucocorticoids alone, n (%) | 13(41.9) | 2(11.1) | – |
 Glucocorticoids+Immunosuppressant, n (%) | 7(22.6) | 8(44.4) | – |
 Glucocorticoids+Biliary drainage, n (%) | 5(16.1) | 0(0) | – |
 Biliary drainage, n (%) | 3(9.7) | 1(5.6) | – |
 Biliary drainage+ Immunosuppressant, n (%) | 3(9.7) | 4(22.2) | – |
 Immunosuppressant, n (%) | 2 (6.5) | 3 (16.7) | – |