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| Factor | Level | Odds ratio (95% CI) | p-value | Coefficient | Score |
| Dysphagia | Yes vs. No | 3.04 (1.12, 8.29) | 0.029 | 1.113 | 1 |
| Hiatal hernia | No vs. Yes | 3.43 (1.20, 9.81) | 0.021 | 1.233 | 1 |
| Tumor size: 2cm+ | Yes vs. No | 4.58 (0.92,22.81) | 0.063 | 1.522 | 1.5 |
| Tumor appearance: exophytic mass | Yes vs. No | 2.84 (1.03, 7.85) | 0.044 | 1.043 | 1 |
