Table 1 Preoperative demographic, clinical, laboratory and endoscopic characteristics according to the outcome

Age at surgery (ds)

68.8 ± 14.8

80.9 ± 184.7

0.001*

Male n (%)

17(51.5%)

33(49.3%)

0.832

Weight

4.7 ± 0.51

4.6 ± 0.73

0.413

Height

58.4 ± 3.7

57.2 ± 3.1

0.119

Clay stool n (%)

33 (100)

67 (100)

1.0

Onset of jaundice

 < 14 days old

15 (45.5%)

46 (68.7%)

0.025*

 ≥ 14 days old

18 (54.5%)

21 (31.3%)

TB (mg/dl)

10.9 ± 3.5

11.4 ± 3.34

0.600

DB (mg/dl)

7.6 ± 2.6

8.08 ± 2.8

0.610

ALT (U/L)

134.9 ± 74.9

140.6 ± 84

0.852

AST (U/L)

204.6 ± 114

216.9 ± 106

0.369

Albumin (g/dl)

3.4 ± 0.64

3.5 ± 0.51

0.547

Total protein (g/dl)

5.2 ± 0.98

4.8 ± 0.67

0.124

ALKp (U/L)

480.4 ± 200

622.9 ± 508

0.889

GGT (U/L)

965.1 ± 666.8

898.7 ± 507

0.041*

PT (s)

11.9 ± 1.09

12.1 ± 1.08

0.839

INR

1.03 ± 0.09

1.05 ± 0.10

0.536

Hb (gm/dl)

9.6 ± 1.26

9.7 ± 1.1

0.991

WBC (× 10³/mcl)

12.5 ± 4.2

13 ± 4.4

0.495

Platelets (× 10³/mcl)

465.7 ± 165.7

457.2 ± 191

0.553