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Good Positive and Negative Likelihood Ratios

Good Positive Likelihood Ratio

Structural Heart Disease in Athletes: Likelihood Ratios

Introduction: None written.

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Tags: Cardiac Problem Congenital Tag this Diagnosis.

Prevalence

Population / Calculator	Prevalence	Comments / Study / Link
College Athletes	2.2%	Ann Int Med vol. 152 no. 5 269-275 (2010) http://www.annals.org/content/152/5/269.abstract
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The likelihood ratios of findings for Structural Heart Disease in Athletes 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.)

Good Positive and Negative Likelihood Ratios
Finding	Result	+LR	-LR
[ + ] History, Physical Exam, and ECG	+ 0 -	5.3	0.1
versus TTE The one patient missed by ECG had mitral valve prolapse but no high-risk features necessitating non-participation in sports. Study: Ann Int Med vol. 152 no. 5 269-275 (2010) http://www.annals.org/content/152/5/269.abstract

Good Positive Likelihood Ratio
Finding	Result	+LR	-LR
[ + ] History and Physical Exam	+ 0 -	8.1	0.6
versus TTE Study: Ann Int Med vol. 152 no. 5 269-275 (2010) http://www.annals.org/content/152/5/269.abstract