Research Article

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

Table 3

The composition of triggers in different age groups.

GroupsYoung groupMiddle-aged groupMiddle-aged groupTotal

Nonsteroidal anti-inflammatory drugs152228
Drink1213328
Tired mood excited5131028
Unknown cause27716