Table 1. Patient characteristics by tumor downstaging.
| Characteristics | No. of patients (%) | |
|---|---|---|
| TDS - NO | TDS - YES | |
| Age | ||
| Median, years (range) | 55.0 (21.3 – 76.8) | 58.1 (30.7 – 78.7) |
| Gender | ||
| Male | 15 (60) | 16 (61.5) |
| Female | 10 (40) | 10 (38.5) |
| ECOG performance status | ||
| 0 | 22 (88) | 22 (84.6) |
| 1 | 3 (12) | 4 (15.4) |
| Tumor stage by EUS | ||
| T2, N+ | 0 (0) | 1 (3.9) |
| T3, N0 | 10 (40) | 12 (46.1) |
| T3, N+ | 14 (56) | 12 (46.1) |
| T4, N+ | 1 (4) | 1 (3.9) |
| Histologic differentiation | ||
| Well differentiated | 1 (4) | 1 (3.9) |
| Moderately differentiated | 21 (84) | 21 (80.7) |
| Poorly differentiated | 3 (12) | 4 (15.4) |
| Hemoglobin level | ||
| Median (range) | 13.9 (10.8 – 16.0) | 14.0 (11.1 – 16.6) |
| CEA level | ||
| Median (range) | 3.1 (1.1 – 19.7) | 2.8 (0.7 – 65.5) |
Abbreviations: TDS = Tumor downstaging; ECOG = Eastern Cooperative Oncology Group; EUS = Endoscopic ultrasound; CEA = Carcinoembryonic antigen.