Table 1 Univariate and multivariate analyses of the characteristics of the 382 patients
Variable | Level | Without DI(n = 182) | With DI(n = 200) | Univariate analysis pvalue | multivariate analysis OR(95%CI) pvalue |
|---|---|---|---|---|---|
Sex | Male | 110 | 149 | *0.003 | 1.30(0.64–2.68) 0.472 |
Female | 72 | 51 | |||
Age(yr) | <65 | 100 | 131 | *0.035 | 0.92(0.57–1.49) 0.733 |
≥ 65 | 82 | 69 | |||
BMI(kg/m²) | <28 | 164 | 167 | 0.058 | |
≥ 28 | 18 | 33 | |||
Diabetes | No | 152 | 161 | 0.444 | |
Yes | 30 | 39 | |||
History of abdominal surgery | No | 170 | 181 | 0.971 | |
Yes | 12 | 13 | |||
ALB/GLB | ≥ 1.2 | 153 | 163 | 0.508 | |
<1.2 | 29 | 37 | |||
Preoperative hemoglobin(g/L) | ≥ 90 | 181 | 197 | 0.362 | |
<90 | 1 | 3 | |||
Preoperative radiotherapy | No | 176 | 170 | *<0.001 | 2.98(1.07–8.30) 0.037 |
Yes | 6 | 30 | |||
ASA | 1 | 4 | 1 | 0.344 | |
2 | 150 | 167 | |||
3 | 28 | 32 | |||
Blood loss(ml) | <100 | 168 | 190 | 0.279 | |
≥ 100 | 14 | 10 | |||
Anastomosis located below the levator ani plane | Yes | 23 | 113 | *<0.001 | 7.09(4.13–12.18)<0.001 |
No | 159 | 87 | |||
Maximum tumor diameter(cm) | <5 | 133 | 153 | 0.441 | |
≥ 5 | 49 | ||||
Pathological stage | I | 40 | 62 | 0.062 | |
II | 62 | 50 | |||
Surgical procedure | III LAR TaTME | 80 161 21 | 88 102 98 | <0.001 | |
Operation time(min) | >180 | 60 | 83 | 0.085 | |
≤ 180 | 122 | 117 | |||
Tumor height(cm) | ≤ 10>5 | 158 | 92 | <0.001 | |
≤5 | 24 | 108 | |||
Number of stapled firings | Handsewn | 20 | 37 | 0.119 | |
≤ 2>0 | 101 | 103 | |||
>2 | 61 | 60 | |||
Air Test | Positive | 10 | 18 | 0.189 | |
Negative | 172 | 182 |