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Table 3 Univariate analyses of post-ESD bleeding risk

From: Bleeding in patients who underwent scheduled second-look endoscopy 5 days after endoscopic submucosal dissection for gastric lesions

  Early phase post-ESD bleeding Later phase post-ESD bleeding Total instances of post-ESD bleeding
  Bleeding Non-bleeding Bleeding Non-bleeding Bleeding Non-bleeding P-value
No. of lesions 10   289   16   273   26   273   
Aged ≥65 years 9 90.0% 231 79.9% 13 81.3% 218 79.9% 22 84.6% 218 79.9% 0.539
Male sex 9 90.0% 216 74.7% 14 87.5% 202 74.0% 23 88.5% 202 74.0% 0.103
Tumor location
 Upper third 4 40.0% 43 14.9% 2 12.5% 41 15.0% 6 23.1% 41 15.0% 0.259
 Middle third 3 30.0% 139 48.1% 10 62.5% 129 47.3% 13 50.0% 129 47.3% 0.809
 Lower third 3 30.0% 107 37.0% 4 25.0% 103 37.7% 7 26.9% 103 37.7% 0.277
Length of the resected specimen ≥40 mm 6 60.0% 89 30.8% 7 43.8% 82 30.0% 13 50.0% 82 30.0% 0.036
Elevated type morphology 6 60.0% 168 58.1% 9 56.3% 159 58.2% 15 57.7% 159 58.2% 0.949
Depth of invasion
 M 8 80.0% 255 88.2% 13 81.3% 242 88.6% 21 80.8% 242 88.6% 0.230
 SM, ≤500 uL 1 10.0% 15 5.2% 1 6.3% 14 5.1% 2 7.7% 14 5.1% 0.562
 SM, > 500 uL 1 10.0% 19 6.6% 2 12.5% 17 6.2% 3 11.5% 17 6.2% 0.297
Ulcer scar within the lesion 0 0.0% 16 5.5% 0 0.0% 16 5.9% 0 0.0% 16 5.9% 0.214
Use of antithrombotic agents 5 50.0% 76 26.3% 10 62.5% 66 24.2% 15 57.7% 66 24.2% 0.0002
Forrest IIa + IIb ulcers requiring prophylactic hemostasis    7 43.8% 48 17.6% 7 26.9% 48 17.6% 0.275
  1. ESD endoscopic submucosal dissection, CI confidence interval, M mucosal layer, SM submucosal layer