Calc Function

    • Calcs that help predict probability of a diseaseDiagnosis
    • Subcategory of 'Diagnosis' designed to be very sensitiveRule Out
    • Disease is diagnosed: prognosticate to guide treatmentPrognosis
    • Numerical inputs and outputsFormula
    • Med treatment and moreTreatment
    • Suggested protocolsAlgorithm

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    Patent Pending

    Leiden Clinical Prediction Rule for Undifferentiated Arthritis

    Diagnoses rheumatoid arthritis in patients with recent-onset undifferentiated arthritis.
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    years
    Male
    0
    Female
    +1
    Small joints in hands/feet
    +0.5
    Upper extremities only
    +1
    Upper and lower extremities
    +1.5
    Other
    0
    No
    0
    Yes
    +0.5
    <30 min
    0
    30-59 min
    +0.5
    ≥60 min
    +1
    <4
    0
    4-10
    +0.5
    ≥11
    +1
    <4
    0
    4-10
    +0.5
    ≥11
    +1
    <5
    0
    5-50
    +0.5
    ≥51
    +1.5
    Negative
    0
    Positive
    +1
    Negative
    0
    Positive
    +2

    Result:

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    Evidence
    Creator Insights

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    About the Creator
    Dr. Annette H. van der Helm-van Mil
    Are you Dr. Annette H. van der Helm-van Mil?