Table 1

 Clinical characteristics in the radiofrequency thermal ablation (RFTA), percutaneous ethanol injection (PEI), and percutaneous acetic acid injection (PAI) groups

There were no significant difference among the RFTA, PEI, and PAI groups, as assessed by the Student’s t test or the χ2 test with Yates’ correction.
HBV, hepatitis B virus; HCV, hepatitis C virus; AST, aspartate aminotransferase; ALT, alainine aminotransferase.
No of patients626263
Age (yr) (mean (SD))61 (10)60 (8)63 (9)
Sex (M/F)40/2239/2342/21
Child-Pugh class (A/B)46/1647/1545/18
Underlying liver disease (HBV/HCV/other)41/20/142/19/141/21/1
No of tumours (1/2/3)49/10/349/12/148/14/1
Ratio of main tumour of 1–2 cm/2.1–3 cm36/2637/2538/25
Size of main tumour (cm) (mean (SD))2.5 (1.0)2.3 (0.8)2.3 (0.9)
Edmondson’s grade of tumour (I or II/III or IV)44/3443/3344/35
Baseline laboratory parameters
    AST (IU/l) (mean (SD))84 (37)89 (32)85 (39)
    ALT (IU/l) (mean (SD))79 (33)84 (25)80 (28)
    Albumin (g/dl) (mean (SD))4.0 (0.6)3.9 (0.4)4.0 (0.4)
    Platelet count (×1000/mm3) (mean (SD))9.4 (2.3)9.1 (2.2)9.0 (2.0)
    Alfa fetoprotein (ng/ml)
Follow up (months) (mean (SD))28 (12)26 (13)26 (10)