Factors for early tumor recurrence of single small hepatocellular carcinoma after percutaneous radiofrequency ablation therapy

Table 1 Baseline data of 22 patients with long-term follow-up.

Sex (male/ female)	16/6
Age (yr, range)	62.5±11.3 (40-82)
HBV/HCV/HBV+HCV/others	9/10/2/1
Child's classification
A / B / C	18/4/0
Esophageal varices (+/-)	11/11
Ascites (+/-)	1/21
Tumor size (cm, range)	2.3±0.7 (1.1-3.9)
≤2 cm / > 2 cm	10/12
Tumor location
Right lobe/Left lobe	16/6
Subcapsular lesion (+/-)	4/18
Histological classification
Well1/Poor2	21/1
Tumor staging (BCLC stage)3
Ia / Ib / Ic	11/10/1

Grading of HCC by Edmondson and Steiner classification[17]

¹Well: well differentiated (grade I, II).

²Poor: poorly differentiated (grade III, IV)

³BCLC stage: staging system from conclusions of the Barcelona-2000 EASL conference[16].