Variables | En bloc resection | Complete resection | Perforation | |||
---|---|---|---|---|---|---|
OR (95% CI) | p-value | OR (95% CI) | p-value | OR (95% CI) | p-value | |
Age | 1.009 (0.921–1.105) | 0.844 | 0.9991 (0.944–1.041) | 0.713 | 1.029 (0.948–1.116) | 0.494 |
Tumor location | Â | 0.950 | Â | 0.376 | Â | 0.647 |
 Upper thoracic | 1 |  | 1 |  | 1 |  |
 Middle thoracic | N/A | 0.998 | 0.822 (0.171–3.959) | 0.807 | 0.483 (0.034–6.948) | 0.592 |
 Lower thoracic | N/A | 0.998 | 1.203 (0.276–5.240) | 0.805 | 0.259 (0.020–3.309) | 0.298 |
 Esophagogastric Jx | N/A | 1.000 | 0.140 (0.007–2.640) | 0.189 | N/A | 0.999 |
Tumor morphology | Â | 0.734 | Â | 0.955 | Â | 0.933 |
 IIa | 1 |  | 1 |  | 1 |  |
 IIb | 4.775 (0.318–71.736) | 0.258 | 0.830 (0.253–2.728) | 0.759 | N/A | 0.998 |
 IIc | N/A | 0.998 | 1.063 (0.225–5.030) | 0.939 | N/A | 0.998 |
 Mixed | N/A | 1.000 | 0.511 (0.024–10.810) | 0.666 | N/A | 1.000 |
Gross tumor size (cm) | 0.294 (0.063–1.374) | 0.120 | 1.320 (0.630–2.768) | 0.462 | 0.907 (0.236–3.488) | 0.888 |
Resected specimen size (cm) | 1.147 (0319–4.126) | 0.834 | 0.475 (0.228–0.989) | 0.047 | 1.926 (0.580–6.397) | 0.285 |
Depth of tumor invasion | Â | 0.744 | Â | 0.228 | Â | 0.924 |
 Mucosal cancer | 1 |  | 1 |  | 1 |  |
 SM invasion | 1.467 (0.147–14.623) |  | 0.567 (0.226–1.427) |  | 0.916 (0.150–5.596) |  |
Experience of endoscopist | Â | 0.098 | Â | 0.146 | Â | 0.052 |
 First 10 esophageal ESDs | 1 |  | 1 |  | 1 |  |
 Further esophageal ESDs | 0.226 (0.039–1.315) |  | 0.513 (0.208–1.262) |  | 0.289 (0.082–1.011) |  |
Method of sedation | Â | 0.996 | Â | 0.011 | Â | 0.030 |
 Conscious sedation | 1 |  | 1 |  | 1 |  |
 General anesthesia | N/A |  | 3.401 (1.317–8.785) |  | 0.067 (0.006–0.775) |  |