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. 2020 Oct 5;8(10):e23578. doi: 10.2196/23578

Table 2.

Clinical and pathological characteristics of patients with extrahepatic cholangiocarcinoma (ECC; n=110).

Characteristics Differentiation degree of ECC LNMa of ECC

High-risk group Low-medium risk group P value Non-LNM LNM P value
Age in years, mean (SD) 56.4 (10.3) 57.5 (9.8) .957 58.0 (9.6) 54.4 (10.6) .272
Gender, n (%) .434 .969

Male 22(50) 38(57.6)
43(54.4) 17(54.8)

Female 22(50) 28(42.4)
36(45.6) 14(45.2)
Lesion location, n (%) .876
.174

Porta 20(45.5) 29(43.9)
32(40.5) 17(54.8)

Distal bile duct 24(54.5) 37(56.1)
47(59.5) 14(45.2)
Lesion areab (mm2), mean (SD) 115.144 (SD 78.425) 131.8649 (SD 73.069) .495 133.199 (SD 86.93) 103.515 (SD 70.998) .816

aLymph node metastases.

bLesion size was defined as the maximum diameter on transverse images.