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Polymyalgia Rheumatica: Likelihood Ratios

Introduction: None written.

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Tags: Rheumatologic Tag this Diagnosis.

Prevalence

Population / CalculatorPrevalence Comments / Study / Link
Adults over 50 years of age 0.7% The following paper has detailed prevalence data for many arthritic conditions broken down by age group, sex, etc.

Estimates of the prevalence of arthritis and selected musculoskeletal disorders in the United States.

Lawrence et al

Arthritis Rheum 1998 May;41(5):778-99.

AD NIAMS, NIH, Bethesda, Maryland 20892, USA.

PMID 9588729

More, Edit...

The likelihood ratios of findings for Polymyalgia Rheumatica are listed below. See the left navigation bar to change the display.

Pre-Test Probability (Prevalence): %. Post-Test Probability (Predictive Value): %. Switch to display mode.
**Note that calculating probabilities from more than one finding is inherently inaccurate because findings are not independent. (For example, using two positive findings that share a common pathogenesis is likely to overestimate the true probability.)