Parameters | No. (%) or Mean ± SEM |
---|---|
Age (years) | 55.9 ± 11.5 |
Stage | |
 II | 20 (19.2%) |
 III | 84 (80.8%) |
T stage | |
 T2 | 4 (3.8%) |
 T3 | 53 (51.0%) |
 T4 | 47(45.2%) |
N stage | 36 (19.1%) |
 N0 | 20 (19.2%) |
 N1 | 59 (56.7%) |
 N2 | 25 (24.0%) |
APR | |
 No | 61 (58.7%) |
 Yes | 43 (41.3%) |
Anal verge (cm) | |
 ≤5 | 59 (56.7%) |
 6–10 | 34 (32.7%) |
  > 10 | 11 (10.6%) |
Pretreatment CEA level (ng/mL) | 17.3 ± 3.7 |
  < 5 | 56 (58.3%) |
 5–10 | 18 (17.3%) |
 ≥ 10 | 30 (28.8%) |
EBRT dose (Gy) | |
 45–50.4 | 6 (5.8%) |
 52.2–54.6 | 98 (94.2%) |