Table 2 Medical data of the study and control groups (n = 60)
Preoperative medical data | Study group (n = 30) | Control group (n = 30) | X2/t-test | P. value | ||
|---|---|---|---|---|---|---|
N | % | N | % | |||
Length of hospital stay (days) | 8.2 ± 1.77 | 9.97 ± 1.03 | 4.73 | < 0.001** | ||
Indication of operation | ||||||
Biliary colic Cholecystitis Cholangitis Pancreatitis Common bile duct stones Papillary “stenosis Bilio-enteric fistula | 3 0 4 1 18 2 2 | 10.0 0.0 13.3 3.3 60.0 6.7 6.7 | 4 1 3 1 16 2 3 | 13.3 3.3 10.0 3.3 53.4 6.7 10.0 | 1.60 | 0.952 |
Modality of operation | ||||||
Laparoscopic common bile duct exploration Open common bile duct exploration | 4 26 | 13.3 86.7 | 3 27 | 10.0 90.0 | 0.16 | 0.688 |
Chronic diseases | ||||||
Diabetes mellitus Hypertension | 8 2 | 26.6 6.7 | 4 3 | 13.3 10.0 | 0.13 0.21 | 0.764 1.00 |
Body mass index | ||||||
Underweight Normal weight Overweight Obese Mean ± SD | 2 26 1 1 | 6.7 86.7 3.3 3.3 | 0 27 3 0 | 0.0 90.0 10.0 0.0 | 4.02 | 0.259 |
22.88 ± 6.73 | 22.61 ± 1.67 | 0.21 | 0.833 | |||
Smoking index | ||||||
None Mild> 200 cigarettes/year | 26 4 | 86.7 13.3 | 23 7 | 76.7 23.3 | 1.00 | 0.317 |