1. Volume 137, Issue 2, Pages 525-531 (August 2009)
High Incidence of Mortality and Recurrent Bleeding in Patients With Helicobacter pylori– Negative Idiopathic Bleeding Ulcers 
Grace Lai–Hung Wong, Vincent Wai–Sun Wong, Yawen Chan, Jessica Yuet–Ling Ching, Kim Au, Aric Josun Hui, Larry Hin Lai, Dorothy Kai–Lai Chow, Danny Ka–Fai Siu, Yan–Ni Lui, Justin Che–Yuen Wu, Ka–Fai To, Lawrence Cheung–Tsui Hung, Henry Lik–Yuen Chan, Joseph Jao–Yiu Sung, Francis Ka–Leung Chan 
Gastroenterology 
Volume 137, Issue 2, Pages (August 2009)
DOI: /j.gastro
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2. Figure 1
Kaplan–Meier estimates of 7-year cumulative probabilities of recurrent ulcer bleeding in the H pylori–negative idiopathic ulcer cohort and the H pylori ulcer cohort (absolute difference, 31.1%; 95% CI, 27.7%–34.5%; P < by log-rank test).
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2009 AGA Institute Terms and Conditions

3. Figure 2
Kaplan–Meier estimates of 7-year cumulative probabilities of recurrent ulcer bleeding after excluding recurrent ulcer bleeding associated with concomitant NSAIDs or relapse of H pylori infection in the H pylori–negative idiopathic ulcer cohort and the H pylori ulcer cohort (absolute difference, 22.2%; 95% CI, 18.4%–26.0%; P < by log-rank test).
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2009 AGA Institute Terms and Conditions

4. Figure 3
Kaplan–Meier estimates of 7-year cumulative probabilities of all-cause mortality in the H pylori–negative idiopathic ulcer cohort and the H pylori ulcer cohort (absolute difference, 50.3%; 95% CI, 49.0%–51.6%; P < by log-rank test).
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2009 AGA Institute Terms and Conditions