Table 1.
Comparison of clinical data between the two groups
| Observation group (n=69) | Control group (n=64) | Z/χ2 | P | |
|---|---|---|---|---|
| Age (years) | 50.57 (39.77-71.44) | 53.74 (33.41-73.44) | -1.214 | 0.264 |
| Sex | 0.612 | 0.484 | ||
| Male (n%) | 31 (%) | 33 (60.7%) | ||
| Female (n%) | 38 (%) | 31 (39.3%) | ||
| Body mass indexes | 24.10 (23.04-26.12) | 24.46 (22.98-26.71) | -0.034 | 0.847 |
| Stone size (cm2) | 6.50 (5.00-8.00) | 7 (5.00-10.00) | -1.926 | 0.074 |
| Common bile duct diameter (cm2) | 13.00 (11.00-13.00) | 12.00 (10.00-12.00) | -1.842 | 0.077 |
| Number of stones | 3.00 (1.00-3.00) | 3.00 (1.00-4.00) | -0.347 | 0.881 |
| Hypertension | 29 (42.03%) | 27 (42.19%) | 0.004 | 0.974 |
| Diabetes | 13 (18.84%) | 14 (21.88%) | 0.074 | 0.741 |
| Coronary heart disease | 13 (18.84%) | 7 (10.94%) | 0.714 | 0.369 |
| Fatty liver | 11 (15.94%) | 9 (14.06%) | 0.000 | 0.941 |
| Preoperative anemia | 13 (18.84%) | 7 (10.94%) | 0.457 | 0.541 |
| Preoperative hypoalbuminemia | 7 (10.14%) | 3 (4.69%) | 0.067 | 0.897 |
| History of abdominal and pelvic surgery | 8 (11.59%) | 1 (1.56%) | 1.897 | 0.147 |