Table 2 Univariate analysis of surgery-related variables for symptomatic anastomotic leakage
Variables | AL (−) (N=290) | AL (+) (N=8) | χ2 | P value |
|---|---|---|---|---|
Distance from the anal verge (cm) |  |  | 3.103 | 0.078†|
 <7 | 67 (23.1) | 4 (50) |  |  |
 ≥7 | 223 (76.9) | 4 (50) |  |  |
Duration of operation(min) |  |  | 11.084 | 0.001†|
 <200 | 222 (76.6) | 2 (25) |  |  |
 ≥200 | 68 (23.4) | 6 (75) |  |  |
Intraoperative blood loss(ml) | Â | Â | 0.444 | 0.505 |
 <100 | 225 (77.6) | 7 (87.5) |  |  |
 ≥100 | 65 (22.4) | 1 (12.5) |  |  |
Combined organ resection | Â | Â | 0.560 | 0.454 |
 No | 271 (93.4) | 8 (100) |  |  |
 Yes | 19 (6.6) | 0 (0) |  |  |
Intraoperative blood transfusion | Â | Â | 1.527 | 0.217 |
 No | 279 (96.2) | 7 (87.5) |  |  |
 Yes | 11 (3.8) | 1 (12.5) |  |  |
Defunctioning stoma | Â | Â | 1.691 | 0.193 |
 No | 150 (51.7) | 6 (75) |  |  |
 Yes | 140 (48.3) | 2 (25) |  |  |
Transanal tube drainage | Â | Â | 0.000 | 0.994 |
 No | 254 (87.6) | 1 (12.5) |  |  |
 Yes | 36 (12.4) | 7 (87.5) |  |  |