Clinical Study

How to Differentiate Sites of Gastrointestinal Bleeding in Patients with Hematochezia by Using Clinical Factors?

Figure 1

The receiver operating characteristic (ROC) curve of the predictive model for having upper gastrointestinal bleeding in patients presenting with hematochezia at the emergency department by multiple logistic regression analysis. The area under ROC curve was 0.874 (95% confidence interval of 0.783, 0.965) which indicates the accuracy of the model using systolic blood pressure, hematocrit level, and BUN/Cr ratio.