TABLE 1.
Patient characteristics.
| Variable | CRT | NAC |
|---|---|---|
| (n = 28) | (n = 47) | |
| Age (years) a | 58.5 (35–78) | 58 (29–75) |
| Sex (male/female) | 19/9 | 34/13 |
| Comorbidity (no/yes) | 9/19 | 34/13 |
| Tumor location (upper rectum/lower rectum/anal canal) | 0/23/5 | 4/35/8 |
| Distance from anal verge (0/>0, ≤5/<5) | 5/11/12 | 1/24/22 |
| Pathological diagnosis (differentiated/undifferentiated) | 25/3 | 47/0 |
| CEA (<5/≥5) | 12/16 | 24/23 |
| cT (1/2/3/4a/4b) | 0/0/21/2/5 | 1/1/30/3/12 |
| cN (0/1/2/3) | 2/1/1/24 | 13/11/7/16 |
| cM (0/1) | 26/2 | 43/4 |
| Approach (open/laparoscopic/robotic‐assisted) | 5/18/5 | 2/37/8 |
| Surgical procedure (LAR/ISR/APR/other) | 13/4/10/1 | 20/14/11/2 |
| LPN dissection (unilateral/bilateral) | 22/6 | 5/42 |
| Combined resection (no/yes) | 22/6 | 39/8 |
| Operation time (min) a | 455 (274–808) | 522 (297–1185) |
| Estimated blood loss (mL) a | 180 (30–1540) | 130 (0–1260) |
Abbreviations: APR, abdominoperineal resection; CEA, carcinoembryonic antigen; CRT, chemoradiotherapy; ISR, intersphincteric resection; LAR, low anterior resection; LPN, lateral pelvic node, NAC, neoadjuvant chemotherapy.
a
median, range.