|
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)
|
- PSM propensity score matching
