Biliary stent combined with iodine-125 seed strand implantation in malignant obstructive jaundice

Table 1 Comparison of baseline clinical characteristics between the two groups

	Combined	Control	χ2/t	P value
Age in yr	63.25 ± 9.92	63.46 ± 10.43	-0.0831	0.934
Sex
Male	16	15	0.343	0.558
Female	16	20
ECOG score
< 2	20	25	0.604	0.437
2	12	10
Child grade
B	25	26	0.136	0.713
C	7	9
Type of obstruction1
High	16	16	0.123	0.726
Low	16	19
Obstruction length (cm)	3.22 ± 1.04	3.26 ± 0.98	-0.1562	0.877
Number of stents
Unilateral	30	32		1.0003
Bilateral	2	3
Tumor type
Pancreatic cancer	14	21	1.820	0.403
Bile duct and gallbladder cancer	11	8
Gastrointestinal cancer metastasis	7	6
Combined infusion chemotherapy
Yes	13	14	0.003	0.958
No	19	21

¹Above the junction of the cystic duct and common hepatic duct is called high obstruction, below the junction is called low obstruction.

²t value, using independent sample t test.

³Using Fisher’s exact probability method. ECOG: Eastern Cooperative Oncology Group.