Table 1 Demographic characteristics of the patients
Characteristic | NATRACE-CRT N | NA-CRT N | P-value |
|---|---|---|---|
Gender (%) | |||
Male | 35 (70.00) | 34 (75.56) | 0.647 |
Female | 15 (30.00) | 11 (24.44) | |
Age (years) | |||
Median | 62 | 57 | 0.063 |
Range | 20–75 | 32–75 | |
ECOG performance status (%) | |||
0 | 43 (86.00) | 37 (82.22) | 0.784 |
1 | 7 (14.00) | 8 (17.78) | |
BMI (kg/m2) | |||
Mean | 22.71 ± 3.07 | 24.18 ± 2.97 | 0.024 |
Tumor length (mm) | |||
Mean | 4.15 ± 1.85 | 3.94 ± 1.31 | 0.293 |
Distance from the AV (cm) | |||
Mean | 6.1 ± 2.63 | 5.73 ± 2.84 | NA |
  < 5 | 15 (30.00) | 17 (37.78) | |
  ≥ 5 | 35 (70.00) | 28 (62.22) | |
Clinical T stage | |||
T3 | 35 (70.00) | 24 (53.33) | 0.138 |
T4 | 15 (30.00) | 21 (46.67) | |
Clinical N stage | |||
N0 | 14 (28.00) | 18 (40.00) | 0.455 |
N1 | 19 (38.00) | 15 (33.33) | |
N2 | 17 (34.00) | 12 (26.67) | |
Baseline CEA level (ng/ml) | |||
Median | 2.88 | 3.29 | 0.516 |
Range | 0.48–63.75 | 0.42–135.82 | |
  ≤ 5.0 | 35 (70.00) | 28 (62.22) | |
  > 5.0 | 15 (30.00) | 17 (37.78) | |
Histological grade | |||
Well differentiated | 6 (12.00) | 6 (13.34) | 0.979 |
Moderately differentiated | 29 (58.00) | 26 (57.78) | |
Poorly differentiated | 15 (30.00) | 13 (28.88) | |