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Table 2 Factors associated with submucosal hematoma and ingestion of ammonia

From: Submucosal hematoma: a new distinctive sign during emergency upper digestive endoscopy for ammonia ingestion

  Submucosal hematoma present N = 15 Submucosal hematoma absent N = 28 P value
Volume ingested (n,%)    
 < 150 ml  > 150 ml  Unknown 10 (66.7) 3 (20.0) 2 (13.3) 24 (85.7) 4 (14.3) 0 0.16
Endoscopic grade (n,%)    
 0  I  IIA  IIB  IIIA  IIIB 0 (0) 2 (13.3) 3 (20.0) 5 (33.3) 2 (13.3) 3 (20.0) 9 (32.1) 4 (14.3) 9 (32.1) 1 (3.6) 3 (10.7) 2 (7.1) 0.02
Extradigestive manifestations (n,%)    
 Oropharyngeal lesions  Clinical signs of severity 12 (80.0) 6 (40.0) 18 (64.3) 2 (7.1) 0.2 0.01
Management (n,%)    
 Medical  Endoscopic dilation  Surgical procedures 12 (80.0) 1 (6.7) 2 (13.3) 26 (92.8) 1 (3.6) 1 (3.6) 0.4
Outcome (n,%)    
 Favourable  Stenosis  Death 11 (73.4) 2 (13.3) 2 (13.3) 25 (89.3) 1 (3.6) 2 (7.1) 0.4
  1. Quantitative values are expresssed in n(%). Differences at P<0.05 are bolded