TABLE 1.
APR (n = 128) | % | CAA (n = 176) | % | p-Value | |
---|---|---|---|---|---|
Age | 0.84 | ||||
Median (years) | 57 | 57 | |||
Gender (M:F) | 74:54 | 100:76 | 0.83 | ||
Clinical stage | 0.52 | ||||
I | 10 | 8 | 20 | 11 | |
II | 68 | 53 | 74 | 42 | |
III | 50 | 39 | 82 | 47 | |
Pathologic stage | 0.23 | ||||
0 | 18 | 14 | 33 | 19 | |
I | 41 | 32 | 54 | 31 | |
II | 36 | 28 | 34 | 19 | |
III | 33 | 26 | 55 | 31 | |
Preoperative chemoradiation therapy | 115 | 90 | 155 | 88 | 0.63 |
Postoperative chemotherapy | 75 | 59 | 118 | 67 | <0.01 |
Lymphovascular invasion | 14 | 13 | 24 | 17 | 0.36 |
Perineural invasion | 7 | 6 | 12 | 8 | 0.54 |
Positive radial margin | 2 | 2 | 1 | 1 | 0.54 |
Multivisceral resection | 37 | 29 | 7 | 4 | <0.01 |
Year of surgery | |||||
1992–1998 | 66 | 52 | 71 | 40 | 0.05 |
1999–2003 | 62 | 48 | 105 | 60 |
APR abdominoperineal resection, CAA coloanal anastomosis