Table 5

Operation time and postoperative hospital stay for non-randomised patients according to multiple regression analysis

Operation time* min

Postoperative hospital stay** Days

MC – OC

-2.7 p = 0.50

-1.3 p = 0.004

LC – OC

20.2 p < 0.001

-1.2 p = 0.003

MC = minilaparotomy cholecystectomy, LC = laparoscopic cholecystectomy, and OC = conventional open cholecystectomy. Figures indicate adjusted differences between MC or LC and OC.

*Operation time adjusted for common bile duct exploration and concomitant operation.

**Postoperative hospital stay adjusted for pancreatitis, malignant disease, common bile duct exploration, biliodigestive shunt operation, co-morbidity, ASA-score, concomitant operation, and acute operation.

Ros et al. BMC Surgery 2006 6:17   doi:10.1186/1471-2482-6-17