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Table 1 Characteristics of the study population and clinical presentation upon admission

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

  Ammonia (N = 43)
Age (median [range], years) 49 [15–80]
Sex female (n,%) 23 (53.5)
Intent of ingestion (n,%)  
 Accidental
 Voluntary
 Unknown
17 (39.5)
25 (58.2)
1 (2.3)
Volume ingested (n,%)  
 < 150 ml
 > 150 ml
 Unknown
34 (79.0)
7 (16.3)
2 (4.7)
Extradigestive manifestations (n,%)  
 Oropharyngeal lesions
 Clinical signs of severity
30 (69.8)
8 (18.6)
Endoscopic grade (n,%)  
 0
 I
 IIA
 IIB
 IIIA
 IIIB
9 (20.9)
6 (14.0)
12 (27.9)
6 (14.0)
5 (11.6)
5 (11.6)
Submucosal hematoma (n,%) 15 (34.8)