Table 4.

Comparison of patients’ clinical data between laparoscopic cholecystectomy and open operation groups

Item	Laparoscopic cholecystectomy group	Open operation group	p value	Total number
Patients	22	46	NA	68
Tumor markers
CEA (positive)	0	4 (8.7%)	0.300	4
CA19-9 (>37 kU/l)	22 (9.1%)	28 (60.9%)	0.0001	30
CT scan findings
Maximum thickness of GB wall, mm	7.3 ± 5.4	11.2 ± 4.3	0.031	NA
Focal thickening of GB wall	2 (9.1%)	20 (43.5%)	0.005	22
Heterogeneous enhancement of the GB wall	18 (81.8%)	24 (52.2%)	0.032	42
Early enhancement of GB wall	1 (4.5%)	25 (54.3%)	0.0001	26
Disrupted mucosal line	6 (27.3%)	14 (30.4%)	1.0000	20
Intramural hypoattenuated nodule	19 (86.4%)	16 (34.8%)	0.0001	35
Gallstone	16 (72.7%)	23 (50%)	0.12	39
Pericholecystic invasion	2 (9.1%)	32 (69.6%)	0.0001	34
Lymph node enlargement (>10 mm)	0	19 (41.3%)	0.0001	19
Mean duration of surgery, min	89	135	0.001	NA
Mean postoperative hospital stay, days	7.6	17.5	0.001	NA
Morbidity	0	3	0.54	3

NA = Not applicable.