Table 1 Clinicopathologic characteristics of patients
Characteristics | CT n = 99 (%) | CRT n = 42 (%) | P value |
|---|---|---|---|
Age, years | 56 | 56.5 | 0.814 |
<50 | 31 (31) | 14 (33) | Â |
≥50 | 68 (69) | 28 (67) |  |
Sex | Â | Â | 0.966 |
Male | 68 (69) | 29 (69) | Â |
Female | 31 (31) | 31 (31) | Â |
Median Karnofsky scores | 90 | 90 | Â |
Preoperative CEA (n g/m L) |  |  | 0.088 |
<5 | 66 (67) | 34 (81) | Â |
≥5 | 33 (33) | 8 (19) |  |
Distance to anal (cm) | Â | Â | 0.003 |
0-5 | 34 (34) | 27 (64) | Â |
6-10 | 44 (44) | 12 (29) | Â |
11-15 | 21 (21) | 3 (7) | Â |
Surgical type | Â | Â | 0.000 |
<Dixon | 79 (80) | 18 (43) | Â |
Miles | 20 (20) | 24 (57) | Â |
Histologic type | Â | Â | 1.000 |
Adenocarcinoma | 94 (95) | 40 (95) | Â |
Mucinous adenocarcinoma | 5 (5) | 2 (5) | Â |
Grade of differentiated | Â | Â | 0.665 |
Well | 15 (15) | 9 (21) | Â |
Moderately | 81 (82) | 32 (76) | Â |
Poor | 3 (3) | 1 (3) | Â |
Maximum diameter (cm) | Â | Â | 0.900 |
<5 | 53 (54) | 22 (52) | Â |
≥5 | 46 (46) | 20 (48) |  |
Number of retrieved lymph nodes | 37 (37) | Â | 0.001 |
<15 | 62 (63) | 29 (69) | Â |
≥15 |  | 13 (31) |  |
Lymph-vascular invasion | Â | Â | 0.084 |
Yes | 3 (3) | 6 (14) | Â |
No | 96 (97) | 36 (86) | Â |
Perirectal fat infiltration | Â | Â | 0.323 |
Yes | 36 (36) | 18 (43) | Â |
No | 63 (64) | 24 (57) | Â |