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Table 8 Clinical predictive model for severe LGIB with sensitivity, specificity, PPV and NPV

From: A clinical predictive model for risk stratification of patients with severe acute lower gastrointestinal bleeding

Score Sensitivity (%) Specificity (%) PPV (%) NPV (%)
 ≥ 1 91.9 39.8 45 90.2
 ≥ 2 57 83.9 65.5 78.5
 ≥ 3 18.8 97.8 82.4 69.3
 ≥ 4 3.1 100 100 65.9
 ≥ 5 0.4 100 100 65.3
  1. *No patient had a maximum score of 6