Table 1.

Relationship between expression of circulating cell-free DNA and clinicopathological features of 39 hepatocellular carcinoma patients

Observation index	No.	No. of positive cfDNA (%)	P value
Age (yr)
≤ 60	26	16 (61.5)	0.453255
> 60	13	6 (46.2)
Sex
Male	32	19 (59.4)	0.024449
Female	7	3 (42.9)
HBsAg
Positive	31	16 (51.6)	0.080857
Negative	8	6 (75)
Intrahepatic and extrahepatic metastasis
Positive	5	4 (80)	0.000242
Negative	34	18 (52.9)
Cirrhosis of liver
Positive	20	10 (50)	0.831179
Negative	19	12 (63.2)

cfDNA: Circulating cell-free DNA.