Table 2.
Correlation between patients characteristics and Siewert classification.
| Siewert 1 |
Siewert 2 + 3 |
p (spearman correlation) | |
|---|---|---|---|
| Cancer center, n (%) | |||
| 1 | 1 (16.7) | 5 (83.3) | 0.9 |
| 2 | 13 (24.1) | 41 (75.9) | |
| 3 | 0 (0) | 1 (100) | |
| 4 | 1 (25) | 3 (75) | |
| Karnofsky index, n (%) | |||
| 80–100 | 13 (25) | 39 (75) | 0.5 |
| <80 | 1 (14.3) | 6 (85.7) | |
| Sex, n (%) | |||
| Women | 0 | 6 (100) | 0.2 |
| Men | 15 (25.4) | 44 (74.6) | |
| Age, n (%) | |||
| ≤62 years | 6 (17.6) | 28 (82.4) | 0.2 |
| >62 years | 9 (29) | 22 (71) | |
| Histologic differentiation, n (%) | |||
| Well differentiated | 3 (30) | 7 (70) | 0.3 |
| Intermediate | 4 (44.4) | 5 (55.6) | |
| Undifferentiated | 3 (17.6) | 14 (82.4) | |
| UST, n (%) | |||
| UST 1-2 | 4 (57.1) | 3 (42.9) | 0.06 |
| UST 3-4 | 11 (19.3) | 46 (80.7) | |
| USN, n (%) | |||
| USN 0 | 1 (11.1) | 8 (88.9) | 0.3 |
| USN 1 | 14 (25.5) | 41 (74.5) | |
| Tumoral length, n (%) | |||
| <50 mm | 8 (32) | 17 (68) | 0.3 |
| ≥50 mm | 7 (23.3) | 23 (76.7) | |
| ypT, n (%) | |||
| pT 0–2 | 12 (30) | 28 (70) | 0.2 |
| pT 3-4 | 3 (16.7) | 15 (83.3) | |
| ypN, n (%) | |||
| pN0 | 11 (34.4) | 21 (65.6) | 0.07 |
| pN ≥ 1 | 4 (14.3) | 24 (85.7) |