Table 1.
Patient characteristics at baseline and pathological outcomes (n = 19)
| Age, years | |
| Mean (standard deviation) | 54.8 (10.7) |
| Median (min, max) | 51 (42, 72) |
| Sex, n (%) | |
| Male | 13 (68.4) |
| Female | 6 (31.6) |
| Race/ethnicity, n (%) | |
| Hispanic or Latino | 2 (10.5) |
| White | 17 (89.4) |
| Other/unknown | 1 (5.3) |
| ECOG, n (%) | |
| 0 | 18 (94.7) |
| 1 | 1 (5.3) |
| Clinical stage at diagnosis, n (%) | |
| T2N1 | 2 (10.5) |
| T3N0 | 3 (15.8) |
| T3N1 | 12 (63.2) |
| T3N2 | 2 (10.5) |
| Interval between completion of chemoXRT and surgery | |
| Median (standard deviation), days | 59 (21.7) |
| Type of surgery, n (%) | |
| LAR | 14 (73.7) |
| APR | 5 (26.3) |
| Pathological response, n (%) | |
| pCR | 7 (36.8) |
| pPR | 9 (47.4) |
| pNR | 3 (15.8) |
| NAR (Neoadjuvant rectal) score | |
| Mean (min, max) | 10.37 (0.94; 30.1) |
| Median ± standard deviation | 8.43 ± 10.32 |
Abbreviations: LAR, low anterior resection; APR, abdominoperineal resection; pCR, pathological complete response; pPR, pathological partial response; pNR, pathological non response.