Table 2.
Factors affecting the accuracy of tumor detection.
| Variables | Accurate | Inaccurate | p-Value | Odds Ratio (95% CI) | p-Value |
|---|---|---|---|---|---|
| Gross type (n, %) | - | - | 0.038 | - | - |
| Elevated | 169 (21.7) | 2 (10.5) | - | - | - |
| Flat | 271 (34.9) | 12 (63.2) | - | - | - |
| Depressed | 337 (43.4) | 5 (26.3) | - | - | - |
| T-stage (n, %) | - | - | 0.001 | - | 0.019 |
| Mucosa (T1a) | 406 (52.3) | 17 (89.5) | - | ref | - |
| Submucosa (T1b) | 371 (47.7) | 2 (10.5) | - | 5.891 (1.326–26.171) | - |
| Size (n, %) | - | - | 0.002 | - | 0.006 |
| 1–13 mm | 162 (21.7) | 11 (57.9) | - | ref | - |
| ≥14 mm | 608 (78.3) | 8 (42.1) | - | 3.660 (1.427–9.384) | - |
| Location of lesion (n, %) | - | - | 0.780 | - | - |
| Upper one-third | 72 (9.3) | 2 (10.5) | - | - | - |
| Mid one-third | 115 (14.8) | 3 (15.8) | - | - | - |
| Lower one-third | 590 (75.9) | 14 (73.7) | - | - | - |
| Japanese classification (n, %) | - | - | 0.296 | - | - |
| Differentiated | 575 (74) | 12 (63.2) | - | - | - |
| Undifferentiated | 202 (26) | 7 (36.8) | - | - | - |