Variables | Â |
---|---|
Age (years) | 64.5 ± 7.9 |
Gender, male | 157 (92.9) |
Body mass index (Kg/m2) | 23.6 ± 2.9 |
Smoking | |
 Current smoker | 32 (18.9) |
 Ex-smoker | 81 (47.9) |
 Never-smoker | 56 (33.1) |
Alcohol | |
 None | 95 (56.2) |
 > 1 day/month | 18 (10.7) |
 > 1 day/week | 27 (16.0) |
 > 4 days/week | 29 (17.2) |
Diabetes mellitus (yes) | 25 (14.8) |
Hypertension (yes) | 51 (30.2) |
Tumor location | |
 Upper thoracic | 13 (7.4) |
 Middle thoracic | 46 (26.3) |
 Lower thoracic | 113 (64.6) |
 Esophagogastric junction | 3 (1.7) |
Tumor morphology | |
 IIa | 26 (14.9) |
 IIb | 125 (71.4) |
 IIc | 21 (12.0) |
 Mixed | 3 (1.7) |
Gross tumor size (cm) | 1.5 ± 0.9 |
Pathologic tumor size (cm) | 1.5 ± 0.8 |
Histologic differentiation | |
 Well differentiated | 34 (19.4) |
 Moderately differentiated | 140 (80.0) |
 Poorly differentiated | 1 (0.6) |
Circumferential size of the tumor (of lumen) | |
 <  1/4 | 50 (28.6) |
 ≥ 1/4, <  1/2 | 109 (62.3) |
 ≥ 1/2, <  3/4 | 16 (9.1) |
 ≥ 3/4 | 0 (0) |
Circumferential size of the post-ESD mucosal defect (of lumen) | |
 <  1/4 | 5 (2.9) |
 ≥ 1/4, <  1/2 | 68 (38.9) |
 ≥ 1/2, <  3/4 | 85 (48.6) |
 ≥ 3/4 | 17 (9.7) |
Depth of tumor invasion | |
 M1 | 26 (14.9) |
 M2 | 71 (40.6) |
 M3 | 42 (24.0) |
 SM1 | 10 (5.7) |
 SM2&3 | 26 (14.9) |
Method of sedation | |
 Conscious sedation | 93 (53.1) |
 General anesthesia | 82 (46.9) |