Table 1.
Characteristics of the patients n (%)
| LRR (n = 152) | ORR (n = 254) | P value | |
| Age1 (yr) | 59 (24-90) | 55 (19-86) | 0.033 |
| Sex | 0.600 | ||
| Male | 95 (62.5) | 151 (59.4) | |
| Female | 57 (37.5) | 103 (40.6) | |
| BMI (kg/m2) | 22.7 (11.1) | 23.1 (9.5) | 0.369 |
| ASA | 0.542 | ||
| 1 | 36 | 50 | |
| 2 | 98 | 177 | |
| 3 | 18 | 27 | |
| Tumor location | 0.837 | ||
| Upper rectum (10.1-15.0 cm) | 39 (25.7) | 59 (23.2) | |
| Middle (5.1-10.0 cm) | 60 (39.5) | 101 (39.8) | |
| Lower rectum (0-5 cm) | 53 (34.9) | 94 (37.0) | |
| Tumor stage | 0.259 | ||
| II | 78 (51.3) | 115 (45.3) | |
| III | 74 (48.7) | 139 (54.7) | |
| Cell differentiation | 0.192 | ||
| Low | 15 (9.9) | 41 (16.1) | |
| Middle | 101 (66.4) | 161 (63.4) | |
| High | 36 (23.7) | 52 (20.5) | |
| Neoadjuvant chemoradiotherapy | 13 (8.6) | 16 (6.3) | 0.429 |
| Postoperative chemotherapy | 0.745 | ||
| Total cycle | 30 (19.7) | 51 (20.1) | |
| Partial cycle | 18 (11.8) | 24 (9.4) | |
| Abdominal surgery history | 21 (13.8) | 28 (11.0) | 0.433 |
| Follow-up1 (mo) | 63 (28-112) | 65 (32-118) | 0.211 |
1
Values are median (range).