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Clinical prediction guide
A simplified version of the Walsh clinical prediction rule was accurate for detecting streptococcal pharyngitis

https://doi.org/10.1136/ebm.8.6.192

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    (2003) Mayo Clin Proc 78, 289. McGinn TG, Deluca J, Ahlawat SK, et al.. Validation and modification of streptococcal pharyngitis clinical prediction rules.. ;. :. –93.
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 QUESTION: In adults with symptoms of upper respiratory tract infection or sore throat, what is the accuracy of a simplified version of the Walsh clinical prediction rule (CPR) for detecting group A β haemolytic streptococcal (GABHS) pharyngitis?

    Design

    A cohort study to validate a simplified version of a previously derived prediction rule.

    Setting

    Primary care clinic of an inner city hospital in New York City, New York, USA.

    Patients

    171 consecutive walk in patients (mean age 35 y, 77% women) with symptoms of upper respiratory tract infection or sore throat.

    Description of prediction guide

    All patients were assessed using 5 clinical predictors. The simplified and original Walsh CPRs used similar clinical predictors but different scores: oral temperature (original: 3 points for each degree >36.1°C; simplified: 1 point for >38.3°C), close contact with a person believed to have a streptococcal infection …

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    Footnotes

    • Source of funding: Albert Einstein College of Medicine, Montefiore Medical Center.

    • For correspondence: Dr T G McGinn, Mount Sinai School of Medicine, New York, NY, USA. thomas.mcginn{at}mountsinai.org

    • * See glossary.