Potential | 3 months | 6 months | 12 months | 24 months | ||||
---|---|---|---|---|---|---|---|---|
Risk factors | After SC | p | After SC | p | Post-OP | p | Post-OP | p |
Sex | ||||||||
F | 4 of 14 | 5 of 14 | 2 of 14 | 2 of 14 | ||||
M | 6 of 38 | 0.254 | 7 of 38 | 0.172 | 14 of 38 | 0.108 | 15 of 36 | 0.063 |
Age (years) | ||||||||
≤ 75 | 8 of 45 | 9 of 45 | 12 of 45 | 13 of 44 | ||||
> 75 | 2 of 7 | 0.406 | 3 of 7 | 0.192 | 4 of 7 | 0.120 | 4 of 6 | 0.093 |
Tumor site | ||||||||
Lower rectal third | 3 of 16 | 5 of 16 | 9 of 16 | 9 of 16 | ||||
Middle rectal third | 7 of 36 | 0.636 | 7 of 36 | 0.277 | 7 of 36 | 0.011* | 8 of 34 | 0.026* |
Ant. quadrant involvement | ||||||||
No | 2 of 13 | 3 of 13 | 4 of 13 | 4 of 13 | ||||
Yes | 8 of 39 | 0.518 | 9 of 39 | 0.635 | 12 of 39 | 0.627 | 13 of 37 | 0.529 |
Neoadjuvant CRT | ||||||||
No | 8 of 34 | 9 of 34 | 7 of 34 | 8 of 33 | ||||
Yes | 2 of 18 | 0.244 | 3 of 18 | 0.332 | 9 of 18 | 0.032* | 9 of 17 | 0.044* |
Approach | ||||||||
Open | 10 of 45 | 12 of 45 | 15 of 45 | 15 of 43 | ||||
Laparoscopic | 0 of 7 | 0.202 | 0 of 7 | 0.139 | 1 of 7 | 0.295 | 2 of 7 | 0.554 |
Intraoperative blood loss (ml) | ||||||||
≤ 1000 | 8 of 45 | 10 of 45 | 14 of 45 | 15 of 43 | ||||
> 1000 | 2 of 7 | 0.406 | 2 of 7 | 0.516 | 2 of 7 | 0.633 | 2 of 7 | 0.554 |
pIONM | ||||||||
Yes | 2 of 29 | 3 of 29 | 5 of 29 | 6 of 28 | ||||
No | 8 of 23 | 0.014* | 9 of 23 | 0.017* | 11 of 23 | 0.019* | 11 of 22 | 0.035* |
Mesorectal thickness (cm)* | ||||||||
< 6 | 7 of 40 | 7 of 40 | 11 of 40 | 12 of 38 | ||||
≥ 6 | 3 of 12 | 0.418 | 5 of 12 | 0.091 | 5 of 12 | 0.277 | 5 of 12 | 0.378 |
Tumor size | ||||||||
≤ 4 cm | 7 of 35 | 8 of 35 | 11 of 35 | 12 of 33 | ||||
> 4 cm | 3 of 17 | 0.579 | 4 of 17 | 0.608 | 5 of 17 | 0.574 | 5 of 17 | 0.434 |
pT-category | ||||||||
(y)pT 0-2 | 5 of 27 | 7 of 27 | 10 of 27 | 10 of 26 | ||||
(y)pT3 | 5 of 25 | 0.584 | 5 of 25 | 0.431 | 6 of 25 | 0.237 | 7 of 24 | 0.347 |
UICC IV | ||||||||
No | 9 of 42 | 11 of 42 | 14 of 42 | 14 of 40 | ||||
Yes | 1 of 10 | 0.375 | 1 of 10 | 0.261 | 2 of 10 | 0.341 | 3 of 10 | 0.539 |
Anastomotic leakage | ||||||||
No | 10 of 51 | 12 of 51 | 16 of 51 | 17 of 49 | ||||
Yes | 0 of 1 | 0.808 | 0 of 1 | 0.769 | 0 of 1 | 0.692 | 0 of 1 | 0.660 |