|  | Testing set n = 100 male/female:16/84 | Training set n = 793 male/female:154/639 | Total n = 893 |
---|---|---|---|---|
 |  | Mean(SD) | Mean(SD) | Mean(SD) |
Age (years) | Â | 50.1(15.7) | 48.7(14.9) | 48.9(15) |
Body Temperature (°C) |  | 37(0.3) | 36.8(0.7) | 36.8(0.7) |
WBC count (per mm3) | Â | 7633.2(2942.4) | 7235.1(2195.6) | 7279.6(2292.8) |
Total bilirubin (mg/dl) | Â | 1.2(1.3) | 1.2(1.7) | 1.2(1.7) |
ALK(mg/dl) | Â | 260.8(221.6) | 233(219.8) | 236.1(220.1) |
Bleeding time | Â | 37.0(0.3) | 36.8(0.7) | 36.8(0.7) |
 |  | Number (%) | Number (%) | Number (%) |
Surgeon's Experience (number of LC) | yes | 99(99) | 507(63.9)SIG | 606(67.9) |
Patient admission type | Emergency | 16(16) | 680(85.8)SIG | 696(77.9) |
Previous Laparotomy | yes | 18(18) | 215(27.1) | 233(26.1) |
Co-Existing Disease | yes | 31(31) | 193(24.3) | 224(25.1) |
Smoking | yes | 14(14) | 66(8.3) | 80(9) |
Conversion to Open Surgery | yes | 9(9) | 73(9.2) | 82(9.2) |