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September 18, 2002

Diagnosing Temporal Arteritis

Author Affiliations

Stephen J.LurieMD, PhD, Senior EditorIndividualAuthor

JAMA. 2002;288(11):1352-1353. doi:10.1001/jama.288.11.1350

To the Editor: In discussing the challenges of diagnosing TA, Dr Hellmann1 repeated a conclusion of Smetana and Shmerling2 that a normal erythrocyte sedimentation rate (ESR) reduced the negative likelihood ratio (LR) of TA to 0.2. Recently, we have observed physicians using formulas to age-adjust the limit of normal ESR. For both the LR and such formulas, some words of caution are in order.

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