| Total No. of patients |
166 |
| Gender, no. (%) |
|
| Male |
111 (66.9) |
| Female |
55 (33.1) |
| Age at diagnosis, median (range), y |
60 (27~86) |
| Distance to anal verge, median(range), cm |
7 (5~12) |
| Grade, no. (%) |
(n = 163) |
| Ⅰ |
4 (2.5) |
| Ⅱ |
147 (90.2) |
| Ⅲ |
12 (7.3) |
| Mucin production, no. (%) |
|
| Present |
6 (3.6) |
| Absent |
160 (96.4) |
| Preoperative serum CEA level, no. (%) |
(n = 164) |
| ≤5 g/ml |
112 (68.3) |
| >5 g/ml |
52 (31.7) |
| Distance from the distal margin, no. (%) |
(n = 151) |
| ≤ 2cm |
40 (26.5) |
| >2cm |
111 (73.5) |
| No. of lymph nodes retrieved, no. (%) |
|
| ≤12 |
60 (36.1) |
| >12 |
106 (63.9) |
| Adjuvant chemotherapy, no. (%) |
|
| No |
71 (42.8) |
| Yes |
95 (57.2) |
