gastric ulcer
Item
gastric ulcers confirmed by endoscopy
boolean
C0038358 (UMLS CUI [1])
nsaid
Item
stop taking nsaids for 1 week prior to endoscopy
boolean
C0003211 (UMLS CUI [1])
age
Item
age 18
boolean
C0001779 (UMLS CUI [1])
helicobacter pylori
Item
h. pylori negative
boolean
C0079488 (UMLS CUI [1])
informed consent
Item
informed written consent
boolean
C0021430 (UMLS CUI [1])
actively bleeding ulcers
Item
actively bleeding ulcers
boolean
C0038358 (UMLS CUI [1,1])
C0019080 (UMLS CUI [1,2])
dysplasia, malignancy
Item
ulcers showing dysplasia or malignancy
boolean
C0334044 (UMLS CUI [1])
C0006826 (UMLS CUI [2])
creatinine
Item
renal failure (serum creatinine >200umol/l)
boolean
C0201976 (UMLS CUI [1])
surgery
Item
previous gastric surgery
boolean
C0038894 (UMLS CUI [1])
malignancy
Item
moribund or terminal malignancy
boolean
C0006826 (UMLS CUI [1])
medication
Item
concomitant use of proton pump inhibitor, misoprostol, aspirin, steroid or anticoagulant
boolean
C0013227 (UMLS CUI [1])