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Peripheral Arterial Disease: Likelihood Ratios

Introduction: None written.

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Prevalence

Population / Calculator	Prevalence	Comments / Study / Link
Symptomatic adults age 60-80	15%	JAMA. 2006 Feb 1;295(5):536-46. PMID: 16449619
Asymptomatic Adults, age 60-69	5%	JAMA. 2006 Feb 1;295(5):536-46. PMID: 16449619
More populations	0%	see table 5 in JAMA. 2006 Feb 1;295(5):536-46. PMID: 16449619
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The likelihood ratios of findings for Peripheral Arterial Disease 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.)

Poorly Diagnostic Findings
Finding	Result	+LR	-LR
[ + ] Capillary refill time	+ 0 -	1.9	0.8
abnormal. For moderate-severe PAD. In symptomatic patients. Study: JAMA. 2006 Feb 1;295(5):536-46. PMID: 16449619