Retrospective Study
Copyright ©The Author(s) 2019.
World J Gastroenterol. Nov 28, 2019; 25(44): 6541-6550
Published online Nov 28, 2019. doi: 10.3748/wjg.v25.i44.6541
Table 1 Comparison of clinical characteristics between cystic duct cancer, gallbladder cancer and extrahepatic cholangiocarcinoma, n (%)
VariableNo. (%) of patients
P value
GC (n = 4878)EC (n = 3295)CC (n = 36)CC vs GCCC vs EC
Sex< 0.001a0.067
Male1528 (31.3)1880 (57.1)26 (72.2)
Female3350 (68.7)1415 (42.9)10 (27.8)
Age at diagnosis (median)716966.50.0590.161
Year of diagnosis0.4870.492
2006 to 20102041 (41.8)1377 (41.8)13 (36.1)
2011 to 20152837 (58.2)1918 (58.2)23 (63.9)
Marital status0.2690.948
Not married2348 (48.1)1264 (38.4)14 (38.9)
Married2530 (51.9)2031 (61.6)22 (61.1)
Race0.7030.330
White3604 (73.9)2529 (76.8)25 (69.4)
Black683 (14.0)246 (7.5)5 (13.9)
Others591 (12.1)520 (15.8)6 (16.7)
Tumor size (median)332525.50.005a0.195
SEER historical stage< 0.001a0.326
Localized1934 (39.6)522 (15.8)3 (8.3)
Regional1150 (23.6)2098 (63.7)27 (75.0)
Distant1794 (36.8)675 (20.5)6 (16.7)
Surgical procedure< 0.001a0.047a
No operation1014 (20.8)1468 (44.6)8 (22.2)
Biopsy/partial resection833 (17.1)535 (16.2)10 (27.8)
Total resection2490 (51.0)417 (12.7)6 (16.7)
Radical resection541 (11.1)875 (26.6)12 (33.3)
Region0.9280.865
Alaska10 (0.2)6 (0.2)0 (0.0)
East1705 (35.0)1104 (33.5)14 (38.9)
Northern plains441 (9.0)301 (9.1)5 (13.9)
Pacific coast1858 (51.1)1346 (41.9)16 (44.4)
Southwest149 (4.1)86 (3.4)1 (2.8)
Histology0.042a0.725
Adenocarcinoma4152 (85.1)3086(93.7)35 (97.2)
Others726 (14.9)209 (6.3)1 (2.8)