The PEARL score
Predicting 90-day readmission or death after hospitalisation for acute exacerbation of COPD
Research authors: C. Ecchevarria, J. Steer, K. Heslop-Marshall, S.C. Stenton, P.M. Hickey, R. Hughes, M. Wijesinghe, R.N. Harrison, N. Steen, A.J. Simpson, G.J. Gibson, S.C. Bourke
Details Formula Study characteristics Files & References
Model author
Model ID
Revision date
MeSH terms
  • COPD
  • Chronic Obstructive Pulmonary Disease
  • Disease Exacerbation
  • Model type
    Logistic regression (Calculation)
    No Formula defined yet
    Condition Formula

    Additional information

    In participating hospitals, consecutive admissions of patients with AECOPD were identified by screening wards and reviewing coding records. A tool to predict 90-day readmission or death without readmission was developed in two hospitals (the derivation cohort) and validated in: (a) the same hospitals at a later timeframe (internal validation cohort) and (b) four further UK hospitals (external validation cohort). Performance was compared with ADO, BODEX, CODEX, DOSE and LACE scores

    Study Population

    Total population size: 824
    Males: {{ model.numberOfMales }}
    Females: {{ model.numberOfFemales }}

    Continuous characteristics

    Name Mean SD Unit
    Age 72.3 9.9 years
    Name LL Q1 Median Q3 UL Unit
    eMRCD 3 4 5 score

    Categorical characteristics

    Name Subset / Group Nr. of patients
    One or more admissions in the previous year No 427
    Yes 397
    Cor pulmonale No 743
    Yes 81
    Left ventricular failure No 763
    Yes 61
    The PEARL 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

    Predicting 90-day readmission or death after hospitalisation is:

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    Notes are only visible in the result download and will not be saved by Evidencio

    Predicting 90-day readmission or death after hospitalisation is:

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    Outcome stratification

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    Result interpretation

    The PEARL score is a simple tool that can effectively stratify patients’ risk of 90-day readmission or death, which could help guide readmission avoidance strategies within the clinical and research setting. It is superior to other scores that have been used in this population.

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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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