[Retracted] A Cohort Study to Compare Effects between Ulcer- and Nonulcer-Related Nonvariceal Upper Gastrointestinal Bleeding

Table 2

Etiological composition in different age groups.

Groups	Young group	Middle-aged group	Middle-aged group	Total
	20	38	42	100
Mallord-Weiss Syndrome	1	1	1	3
Reflux esophagitis	1	1	3	5
Gastric ulcer	1	9	21	31
Duodenal ulcer	15	23	10	48
Marginal ulcer	0	1	1	2
Acute gastric mucosal lesions	2	2	3	7
Esophageal cancer and Gastric cancer	0	1	3	4