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. 2017 Dec 15;34(2):288–295. doi: 10.3904/kjim.2016.406

Table 4.

Sensitivity, specificity, and positive and negative predictive values of the risk factors for endoscopic hemostasis in AUGIB patients

Sensitivity, % Specificity, % PPV, % NPV, %
Hemoglobin 47 63 59 51
Bloody NGL 62 81 76 68

AUGIB, acute upper gastrointestinal bleeding; PPV, positive predictive value; NPV, negative predictive value; NGL, nasogastric lavage.