Table 1

Glasgow-Blatchford Score (GBS)

GBS for gastrointestinal bleeding
Score value
Blood urea (mmol/L)
 6.5–7.92
 8.0–9.93
 10.0–25.04
 >25.06
Haemoglobin for men (g/dL)
 12.0–12.91
 10.0–11.93
 <10.06
Haemoglobin for women (g/dL)
 10.0–11.91
 <10.06
Systolic blood pressure (mm Hg)
 100–1091
 90–992
 <903
Other markers
 Pulse ≥100/min1
 Presentation with melaena1
 Presentation with syncope2
 Hepatic disease*2
 Cardiac failure†2

  • *Known history, or clinical and laboratory evidence, of chronic or acute hepatic disease.

  • †Known history, or clinical and echocardiographic evidence, of cardiac failure.