Table 2.
Univariate analysis of lesion characteristics
| Lesion characteristics | Non-stenosis | Stenosis | P value |
|---|---|---|---|
| Preoperative pathology, n | 0.001* | ||
| LGIN | 56 | 8 | |
| HGIN | 83 | 43 | |
| Location, n | 0.698 | ||
| Upper thoracic part | 6 | 3 | |
| Middle thoracic part | 78 | 31 | |
| Lower thoracic part | 55 | 17 | |
| Lesion number, n | 0.103 | ||
| Single | 120 | 39 | |
| Multiple | 19 | 12 | |
| Ultrasonic infiltration, n | 0.357 | ||
| Mucosal | 97 | 32 | |
| Submucosal | 42 | 19 | |
| Morphology | 0.774 | ||
| Flat | 129 | 46 | |
| Protruded | 10 | 5 | |
| Depressed | 0 | 0 | |
| Longitudinal resection length, medium (cm) | 6 | 7 | < 0.001* |
| Circumferential specimen size, medium, (cm) | 3 | 4 | < 0.001* |
| Circumferential range, n | < 0.001* | ||
| < 1/2 | 71 | 1 | |
| 1/2–3/4 | 65 | 9 | |
| 3/4–1 | 3 | 41 | |
| Postoperative pathology, n | < 0.001* | ||
| LGIN | 30 | 0 | |
| HGIN | 94 | 36 | |
| Tis | 14 | 10 | |
| Squamous carcinoma | 1 | 5 | |
| Depth of infiltration, n | < 0.001* | ||
| Mucosal | 131 | 39 | |
| Submucosal | 8 | 12 |
LGIN low grade intraepithelial neoplasia, HGIN high grade intraepithelial neoplasia, Tis refers to carcinoma in situ
*Indicates that the results were statistically significant