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

Table 1

Forrest grading of peptic ulcer.

Forrest grading	Ulcer lesions	Probability of rebleeding
Ia	Jet bleeding	55%
Ib	Active oozing	55%
IIa	Blood vessels exposed	43%
IIb	Blood clot	22%
II c	Bottom of the black	10%
III	Bottom of the clean	5%