Table 5.
Univariate analysis of factors affecting poor prognosis in patients with postoperative anastomotic leakage
| Factor |
Favorable prognosis group (n = 27)
|
Unfavorable prognosis group (n = 34)
|
t/χ 2 | P value | ||
|
Cases
|
Percentage (%)
|
Cases
|
Percentage (%)
|
|||
| Sex | ||||||
| Male | 22 | 81.48 | 26 | 76.47 | 0.225 | 0.635 |
| Female | 5 | 18.52 | 8 | 23.53 | ||
| Age (years) | ||||||
| < 55 | 15 | 55.56 | 18 | 52.94 | 0.041 | 0.839 |
| ≥ 55 | 12 | 44.44 | 16 | 47.06 | ||
| Tumor distance from the anus (cm) | ||||||
| < 5 | 9 | 33.33 | 23 | 67.65 | 7.105 | 0.008 |
| ≥ 5 | 18 | 66.67 | 11 | 32.35 | ||
| Interval between radiotherapy and surgery (weeks) | ||||||
| ≥ 8 | 7 | 25.93 | 8 | 23.53 | 0.047 | 0.829 |
| < 8 | 20 | 74.07 | 26 | 76.47 | ||
| Prophylactic stoma | ||||||
| Yes | 12 | 44.44 | 15 | 44.12 | 0.001 | 0.980 |
| No | 15 | 55.56 | 19 | 55.88 | ||
| Hand-sewn anastomosis | ||||||
| Yes | 9 | 33.33 | 9 | 26.47 | 0.341 | 0.559 |
| No | 18 | 66.67 | 25 | 73.53 | ||
| ISREC classification | ||||||
| Grade A | 19 | 70.37 | 11 | 32.35 | 10.468 | 0.005 |
| Grade B | 5 | 18.52 | 20 | 58.82 | ||
| Grade C | 3 | 11.11 | 3 | 8.82 | ||
| Fistula location | ||||||
| Anterior wall | 4 | 14.81 | 5 | 14.71 | 7.507 | 0.057 |
| Posterior wall | 14 | 51.85 | 26 | 76.47 | ||
| Lateral wall | 7 | 25.93 | 1 | 2.94 | ||
| Circumferential | 2 | 7.41 | 2 | 5.88 | ||
ISREC: Swiss Institute for Experimental Cancer Research.