Table 1 Clinicopathological factors of patients undergoing DP-CAR

Age (years)

62.0 (39–80)

Gender, male/female

21/10

CEA (ng/mL)

3.5 (0.7–493.0)

CA19-9 (U/mL)

235.5 (0.1–16,860.0)

Neoadjuvant chemotherapy, yes/no

24/7

Preoperative coil embolization, yes/no

23/8

Operative time (min)

334 (175–584)

Blood loss (g)

1270 (305–10,270)

Blood trans fusion, yes/no

17/14

Portal vein resection, yes/no

16/15

Gastrectomy, yes/no

5/26

Bile duct resection, yes/no

1/30

Tumor size (cm)

4.4 (2.0–10.0)

Histologic type, well/moderate/poor/other

10/14/4/3

Lymph node metastasis, yes/no

24/7

Arterial invasion, yes/no

14/17

Portal vein invasion, yes/no

21/10

Perineural invasion, yes/no

29/2

Residual tumor status, R0/R1, R2

13/18

UICC stage (7th edition), IB, IIA/IIB, III, IV

6/25

Adjuvant chemotherapy, yes/no

23/8