Table 1. Patient characteristics.
| Variables | Unmatched | After applying PSM | |||||
|---|---|---|---|---|---|---|---|
| LAR (N=103) | LNAR (N=64) | P value | LAR (N=46) | LNAR (N=46) | P value | ||
| Demographic data | |||||||
| Age (years) | 59.4±11.4 | 60.2±9.9 | 0.342 | 59.8±10.9 | 61.6±8.2 | 0.252 | |
| Male | 77 (80.8) | 54 (84.4) | 0.177 | 29 (63.0) | 38 (82.6) | 0.060 | |
| BMI (kg/m2) | 24.7±3.6 | 25.1±2.9 | 0.491 | 24.8±3.6 | 25.1±2.9 | 0.444 | |
| HTN | 42 (40.8) | 28 (43.8) | 0.748 | 12 (26.1) | 16 (34.7) | 0.831 | |
| Diabetes | 23 (22.3) | 14 (21.9) | 1.000 | 6 (13.0) | 10 (21.7) | 0.410 | |
| Prior abdominal surgery | 22 (21.4) | 19 (29.7) | 0.268 | 10 (21.7) | 14 (30.4) | 0.336 | |
| Preoperative data | |||||||
| Etiology | 0.965 | 0.470 | |||||
| Hepatitis B | 66 (64.1) | 41 (64.1) | 32 (69.6) | 27 (58.7) | |||
| Hepatitis C | 7 (6.8) | 5 (7.8) | 5 (10.9) | 5 (10.9) | |||
| MELD score | 7.6±1.6 | 7.7±1.2 | 0.220 | 7.7±1.3 | 7.8±1.4 | 0.277 | |
| Child-Pugh score | 0.372 | 1.000 | |||||
| A | 101 (98.1) | 61 (95.3) | 45 (97.8) | 45 (97.8) | |||
| B | 2 (1.9) | 3 (4.7) | 1 (2.2) | 1 (2.2) | |||
| Bilirubin (mg/dL) | 0.8±0.4 | 0.8±0.3 | 0.364 | 0.8±0.4 | 0.8±0.4 | 0.481 | |
| ALT (IU/L) | 50.9±65.8 | 36.1±27.2 | 0.028 | 42.5±61.3 | 39.9±32.7 | 0.515 | |
| AST (IU/L) | 51.1±80.0 | 41.7±33.3 | 0.307 | 49.1±109.5 | 47.3±42.5 | 0.336 | |
| Albumin (g/dL) | 4.3±0.4 | 4.2±0.4 | 0.724 | 4.2±0.4 | 4.3±0.4 | 0.185 | |
| INR | 1.1±0.1 | 1.1±0.1 | 0.639 | 1.1±0.1 | 1.1±0.1 | 0.232 | |
| Platelet count (×103/μL) | 193.4±66.9 | 163.6±65.0 | 0.276 | 183.9±78.7 | 170.4±62.6 | 0.396 | |
| Prior TACE | 20 (19.4) | 16 (25.0) | 0.441 | 12 (26.1) | 9 (19.6) | 0.620 | |
| Prior RFA | 9 (8.7) | 3 (4.7) | 0.375 | 5 (10.8) | 2 (4.3) | 0.158 | |
| AFP (ng/mL) | 836.0±6,953.3 | 217.8±1,113.7 | 0.046 | 351.9±826.3 | 332.6±658.6 | 0.874 | |
| Tumor size (cm) | 4.0±2.3 | 2.0±0.9 | 0.001 | 2.6±1.0 | 2.3±1.0 | 0.741 | |
All variables are presented as the mean ± standard deviation or n (%) of patients. PSM, propensity score matching; LAR, laparoscopic anatomical resection; LNAR, laparoscopic non-anatomical resection; BMI, body mass index; HTN, hypertension; MELD, Model for End-stage Liver Disease; ALT, alanine aminotransferase; AST, aspartate aminotransferase; INR, international normalized ratio; TACE, transarterial chemoembolization; RFA, radiofrequency ablation; AFP, α-fetoprotein.