Table 3.
Baseline patient characteristics between the 2 treatment methods after propensity score matching
| Parameters | Laparoscopic resection (n = 118) | p-RFA (n = 118) | p value* |
|---|---|---|---|
| Age, years (mean ± SD) | 59.5±8.7 | 60.5±10.3 | 0.378 |
| Gender, n (M:F) | 91:27 | 88:30 | 0.761 |
| Etiology, n (%) | |||
| HBV | 90 (76.3) | 84 (71.2) | |
| HCV | 10 (8.5) | 12 (10.2) | 0.783 |
| Alcoholic | 16 (13.5) | 19 (16.1) | |
| Others | 2 (1.7) | 3 (2.5) | |
| Tumor size, cm (mean ± SD) | 1.84±0.56 | 1.87±0.51 | 0.727 |
| Albumin, mg/dL (mean ± SD) | 4.27±0.37 | 4.23±0.37 | 0.486 |
| Total bilirubin, mg/dL (mean ± SD) | 0.76±0.36 | 0.79±0.45 | 0.614 |
| Prothrombin activity (INR, mean ± SD) | 1.05±0.08 | 1.07±0.10 | 0.269 |
| AFP, ng/mL (mean ± SD) | 90.2±309.0 | 67.6±173.4 | 0.496 |
| Platelet count, K/mm3 (mean ± SD) | 148.8±49.4 | 145.7±55.8 | 0.622 |
| Tumor location, n (%) | |||
| Subcapsular alone | 65 (55.1) | 65 (55.1) | |
| Perivascular alone | 14 (11.9) | 14 (11.9) | 1.000 |
| Non-subcapsular and non-perivascular | 39 (33.0) | 39 (33.0) | |
| Perivascular and subcapsular | 0 (0.0) | 0 (0.0) | |
| Tumor in postero-superior portion, n (%) | 59 (50.0) | 48 (40.7) | 0.152 |
p-RFA, percutaneous radiofrequency ablation; SD, standard deviation; HBV, hepatitis B virus; HCV, hepatitis C virus; INR, international normalized ratio; AFP, alpha-fetoprotein. Tumor in postero-superior portion of the liver includes tumors in segments 1, 7, 8, and 4a.
*
p value was obtained using the McNemar test for categorical variables and the paired t test for continuous variables.