Comparison of LC+LCBDE during the daytime and nighttime
| Variable | Daytime LC+LCBDE | Nighttime LC+LCBDE | P value |
| Age (years) | 55 (31–70) | 45 (25–63) | 0.21 |
| Female | 63% | 60% | >0.99 |
| BMI (kg/m2) | 29 (26–36) | 34 (29–38) | 0.03 |
| AST (IU/L) | 89 (36–205) | 191 (60–328) | 0.09 |
| ALT (IU/L) | 113 (38–212) | 282 (80–503) | 0.03 |
| Alk Phos (U/L) | 123 (90–167) | 149 (95–210) | 0.32 |
| T Bili (mg/dL) | 1.4 (0.9–2.4) | 1.7 (0.9–3.6) | 0.14 |
| Preoperative diagnosis (%) | 0.11 | ||
| Cholecystitis | 49 | 40 | |
| Choledocholithiasis | 29 | 32 | |
| Preoperative symptomatic cholelithiasis | 6 | 8 | |
| Gallstone pancreatitis | 14 | 4 | |
| Other diagnosis | 2 | 0 | |
| Duration of operation (hours) | 2.8 (2.2–3.3) | 2.8 (2.3–3.2) | 0.88 |
| Length of stay (hours) | 59 (38–96) | 44 (28–59) | 0.03 |
| Successful bile duct exploration | 71% | 68% | 0.78 |
Rates of successful clearance of the bile duct were the same between groups. Length of stay was significantly shorter for LC+LCBDE performed at night. Data presented as median and IQR.
Alk Phos, alkaline phosphatase; ALT, alanine transaminase; AST, aspartate transaminase; BMI, body mass index; LC+LCBDE, laparoscopic cholecystectomy with laparoscopic common bile duct exploration; T Bili, total bilirubin.