Comparison of risk scoring systems for upper gastrointestinal bleeding in patients after renal transplantation: a retrospective observational study in Hunan, China

Table 3 Optimal cut-off values for scoring system to predict patients who need intervention or might die

Scoring system	Cut-off	No (%) of patients classified as high risk	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Glasgow blatchford	≥ 10	35 (63.6%)	82.4	70	82.7	70
AIMS65	≥ 1	12 (21.8%)	28.6	90	83.3	41.9
Pre-endoscopy Rockall score	≥ 1	32 (58.2%)	65.7	55	71.9	33.3

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