Demographic and clinicopathological characteristics of the patients after propensity score matching (n = 148)
| FB-GBC (n = 74) |
NC-GBC (n = 74) |
||
|---|---|---|---|
| Age (yr) | 69.2 ± 10.4 | 68.8 ± 9.5 | 0.812 |
| Female sex | 43 (58.1) | 43 (58.1) | > 0.999 |
| BMI | 24.1 ± 3.6 | 24.0 ± 3.7 | 0.995 |
| ASA class < 3 |
61 (91.0) | 64 (90.1) | 0.856 |
| ECOG status < 2 |
57 (86.4) | 65 (91.5) | 0.331 |
| Acute cholecystitis | 20 (27.0) | 22 (29.7) | 0.715 |
| PTGBD insertion | 7 (9.5) | 9 (12.2) | 0.597 |
| Symptomatic GBC |
56 (75.6) | 63 (85.1) | 0.247 |
| CA 19-9 ≥ 37.0 (U/mL) |
17 (26.2) | 25 (38.5) | 0.134 |
| Laparoscopic approach | 47 (63.5) | 33 (45.2) | 0.026 |
| 2nd look operation | 16 (21.6) | 15 (20.3) | 0.840 |
| Bile duct resection | 7 (9.5) | 26 (35.1) | < 0.001 |
| Surgical extent | 0.109 | ||
| SC only | 16 (21.6) | 15 (20.3) | |
| SC + LND | 10 (13.5) | 11 (14.9) | |
| Wedge resection | 39 (52.7) | 26 (35.1) | |
| S4b + 5 segmentectomy | 9 (12.2) | 14 (18.9) | |
| Major liver resection |
0 (0.0) | 8 (10.8) | |
| Tumor size (mm) | 28.8 ± 14.6 | 33.3 ± 25.8 | 0.196 |
| R0 resection | 66 (89.2) | 54 (73.0) | 0.012 |
| Lymphovascular invasion |
29 (39.7) | 32 (44.4) | 0.565 |
| Perineural invasion |
17 (24.6) | 30 (42.3) | 0.027 |
| Adjuvant treatment | 24 (32.4) | 34 (45.9) | 0.092 |
| Recurrence |
24 (36.4) | 42 (66.7) | < 0.001 |
Values are presented as mean ± standard deviation or number (%).
FB-GBC, gallbladder cancer in the fundus/body; NC-GBC, gallbladder cancer in the neck/cystic duct; BMI, body mass index; ASA, American Society of Anesthesiologists; ECOG, Eastern Cooperative Oncology Group; PTGBD, percutaneous transhepatic gallbladder drainage; SC, simple cholecystectomy; LND, lymph node dissection.
a)The total sample size may not equate to the breakdown because of missing data.
b)Major liver resection is defined as liver resection ≥ 3 hepatic segments.