Table 2.
Postoperative complications in the two groups.
| Complication & classification | Group | Chi-square | p value | |
|---|---|---|---|---|
| SR (n) | RFA (n) | |||
| Complications (totle) | 38 | 20 | χ 2 = 10.864 | 0.001 |
| Hydrothorax | 4 | 2 | ||
| Ascites | 7 | 2 | ||
| Bile leakage | 2 | — | ||
| Postoperative hemorrhage | 1 | 1 | ||
| Hepatic failure | — | 1 | ||
| Massive necrosis | — | 1 | ||
| Pneumothorax | — | 3 | ||
| Febrile (>38.5°C & >3 days) | 5 | 2 | ||
| Pain (PCA included) | 23 | 8 | ||
| Clavien-Dindo Classification | z = −2.094 | 0.036∗ | ||
| Grade 1 | 19 | 16 | ||
| Grade 2 | 16 | 3 | ||
| Grade 3-4 | 3 | 1 | ||
∗Mann-Whitney U test;
PCA: patient controlled analgesia.