Competing risk analyses of overall survival and cancer-specific survival in patients with combined hepatocellular cholangiocarcinoma after surgery

Table 1 The comparison of clinicopathological factors between training cohort and validation cohort

Characteristic		N	Patients		P
Characteristic		N	Training cohort	Validation cohort	P
Total		329	230	99
Age (median, years)			60.5 ± 10.41	50.0 ± 11.15
Gender	Male	234	161	73	0.511
Gender	Female	95	69	26	0.511
Tumor site	Intrahepatic biliary tract	29	16	13	0.089
Tumor site	Liver	300	214	86	0.089
Tumor grade	Well	8	8	0	0.058
	Moderate	143	92	51
	Poor	178	130	48
Tumor size	≤ 5 cm	183	137	46	0.056
Tumor size	> 5 cm	146	93	53	0.056
T stage (8th)	I	137	93	44	0.203
	II	108	83	25
	III	62	38	24
	IV	22	16	6
LN metastasis	Absent	291	204	87	0.852
LN metastasis	Present	38	26	12	0.852
TNM stage (8th)	I	122	79	43	0.509
	II	104	77	27
	III	103	74	29

ISSN: 1471-2407