Table 1. Baseline characteristics of patients population.
| Characteristics | Patient (%) | p-value | ||
|---|---|---|---|---|
| Total | pCR | no-pCR | ||
| Sex | 0.67 | |||
| Male | 66 (66.7) | 14 (60.9) | 52 (68.4) | |
| Female | 33 (33.3) | 9 (39.1) | 24 (31.6) | |
| Age | 0.66 | |||
| ≤ 70 | 76 (76.8) | 19 (82.6) | 57 (75) | |
| > 70 | 23 (23.2) | 4 (17.4) | 19 (25) | |
| BMI | 0.67 | |||
| ≤ 35 kg/m2 | 97 (98) | 23 (100) | 74 (97.4) | |
| > 35 kg/m2 | 2 (2) | 0 (0) | 2 (2.6) | |
| Comorbidities | 0.98 | |||
| No | 51 (51.5) | 13 (56.5) | 38 (50) | |
| Yes | 48 (48.5) | 10 (43.5) | 38 (50) | |
| T classification | 0.86 | |||
| 2 | 2 (2) | 1 (4.3) | 1 (1.3) | |
| 3 | 85 (85.9) | 19 (82.6) | 66 (86.8) | |
| 4 | 12 (12.1) | 3 (13.1) | 9 (11.9) | |
| N classification | 0.21 | |||
| 0 | 19 (19.2) | 5 (21.7) | 14 (18.4) | |
| 1 | 39 (39.4) | 6 (26.1) | 33 (43.4) | |
| 2 | 41 (41.4) | 12 (52.2) | 29 (38.2) | |
| Overall stage | 0.22 | |||
| II | 19 (19.2) | 5 (21.7) | 14 (18.4) | |
| IIIA | 1 (1) | 0 (0) | 1 (1.3) | |
| IIIB | 42 (42.4) | 7 (30.4) | 35 (46.1) | |
| IIIC | 37 (37.4) | 11 (47.9) | 26 (34.2) | |
| Tumor dimension | 0.22 | |||
| ≤ 5 cm | 65 (65.7) | 18 (78.3) | 47 (61.8) | |
| > 5 cm | 34 (34.3) | 5 (21.7) | 29 (38.2) | |
| Distance from anal verge | 0.28 | |||
| ≤ 5 cm | 56 (59.6) | 14 (60.9) | 42 (55.3) | |
| > 5 ≤ 8 cm | 22 (22.2) | 2 (8.7) | 20 (26.3) | |
| > 8 cm | 21 (21.2) | 7 (30.4) | 14 (18.4) | |
pCR: pathologic complete response; BMI: body mass index; T: tumor; N: node