Glasgow-Blatchford bleeding score
The Glasgow Blatchford bleeding score (GBS) stratifies upper gastrointestinal bleeding enabling outpatient management for patients who are at low risk. 
Research authors: Oliver Blatchford, William R Murray, Mary Blatchford
Details Formula Study characteristics Files & References
Model author
Model ID
Revision date
MeSH terms
  • Hematemesis
  • Hemorrhage, Gastrointestinal
  • Model type
    Linear model (Calculation)
    No Formula defined yet
    Condition Formula

    Additional information

    In the first study, the score was developed with data collected in an audit of admissions for acute uppergastrointestinal haemorrhage in all 19 hospitals in west Scotland. Data from 1748 patients were used to build a logistic regression model with the need for treatment as a response variable.

    In the second study, the risk scoring system was prospectively validated in a group of 197 consecutive adult patients admitted with upper-gastrointestinal haemorrhage during a subsequent 3-month period in three hospitals in west Scotland

    Study Population

    Total population size: 1748

    Additional characteristics

    No additional characteristics defined
    Glasgow-Blatchford bleeding score
    Refer to Intended Use for instructions before use
    Evidencio B.V., Irenesingel 19, 7481 GJ, Haaksbergen, the Netherlands

    Related files

    No related files available

    Supporting Publications

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    The Glasgow-Blatchford Bleeding risk score is: points

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    Outcome stratification

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    Conditional information

    Result interpretation

    This tool classified patients as being at low risk of needing clinical intervention for upper-gastrointestinal haemorrhage if, at presentation, all of the following were true: blood urea was less than 6·5 mmol/L, haemoglobin more than 130 g/L for men or 120 g/L for women, systolic blood pressure 110 mm Hg or higher, and pulse less than 100 beats per min

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    Calculations alone should never dictate patient care, and are no substitute for professional judgement. See our full disclaimer.

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