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Table 1 Clinical characteristics of patients in the two groups before and after PSM

From: Modified duct-to-mucosa versus conventional pancreaticoenterostomy for pancreaticoduodenectomy: a retrospective cohort study based on propensity score matching analysis

Variables Group (before PSM) Group (after PSM)
A (n = 124) B (n = 109) P value A (n = 82) B (n = 82) P value
Performance status (0:1:2) 119:5:0 105:4:0 0.580 78:4:0 80:2:0 0.682
Gender (female/male) 50:74 58:51 0.033 37:45 39:43 0.754
Age (years), n (%)
 < 45 10 (8.1) 2 (1.8) 0.037 8 (9.8) 1 (1.2) 0.696
 45–55 38 (30.6) 28 (25.7) 23 (28.0) 27 (32.9)
 56–65 50 (40.3) 61 (56.0) 34 (41.5) 43 (52.4)
 > 65 26 (21.0) 18 (16.5) 17 (20.7) 11 (13.4)
ASA, n (%)
 I 120 (96.8) 105 (96.3) 0.566 78 (95.1) 82 (97.6) 0.405
 II 4 (3.2) 4 (3.7) 4 (4.9) 2 (2.4)
 III 0 0 0 0
 IV.V 0 0 0 0
BMI (kg/m2), n (%)
 < 24 90 (54.2) 76 (45.8) 0.037 64 (78.0) 60 (73.2) 0.502
 24–28 33 (60.0) 22 (40.0) 17 (20.7) 21 (25.6)
 > 28 11 (91.7) 1 (8.3) 1 (1.2) 1 (1.2)
Previous laparotomy, n (%) 5 (4.0) 14 (12.8) 0.014 5 (6.1) 7 (8.5) 0.549
Jaundice, n (%) 50 (40.3) 66 (60.6) 0.002 47 (57.3) 44 (53.7) 0.637
Cholangitis, n (%) 33 (26.6) 44 (40.4) 0.026 29 (35.4) 30 (36.6) 0.871
Weight loss, n (%) 38 (44.2) 48 (55.8) 0.035 29 (35.4) 28 (34.1) 0.870
Tumor size, n (%)
 < 2 cm 44 (35.5) 29 (26.6) 0.026 25 (30.5) 22 (26.8) 0.869
 2–4 cm 56 (45.2) 68 (62.4) 47 (57.3) 49 (59.8)
 > 4 cm 24 (19.4) 12 (11.0) 10 (12.2) 11 (13.4)
HB (g/L), n (%)
 10 111 (89.5) 91 (83.5) 0.176 74 (90.2) 71 (86.6) 0.464
 < 10 13 (10.5) 18 (16.5) 8 (9.8) 11 (13.4)
ALB (g/L), n (%)
 35 90 (72.6) 63 (57.8) 0.018 54 (65.9) 51 (62.2) 0.625
 < 35 34 (27.4) 46 (42.2) 28 (34.1) 31 (37.8)
Preoperative bile duct drainage, n (%) 30 (24.2) 40 (36.7) 0.038 27 (32.9) 26 (31.7) 0.867
Comorbidities, n (%)
 Diabetes 18 (14.5) 28 (25.7) 0.033 13 (15.9) 16 (19.5) 0.539
 Respiratory disease 11 (8.9) 12 (11.0) 0.585 6 (7.3) 6 (7.3) > 0.999
 Ischemic heart disease 10 (8.1) 8 (7.3) 0.836 7 (8.5) 6 (7.3) 0.773
 Hypertension 40 (32.3) 30 (27.5) 0.431 22 (26.8) 23 (28.0) 0.861
Pancreatic duct diameter, n (%)
 < 3 mm 19 (15.3) 30 (27.5) 0.023 14 (17.1) 16 (19.5) 0.686
 3 mm 105 (84.7) 79 (72.5) 68 (82.9) 66 (80.5)
Pancreas texture, n (%)
 Soft 37 (29.8) 35 (32.1) 0.708 22 (26.8) 23 (28.0) 0.861
 Firm 87 (70.2) 74 (67.9) 60 (73.2) 59 (72.0)
  1. PSM propensity score matching