Tools

Add a finding for this diagnosis

Add prevalence for this diagnosis

Switch to display mode

Switch to sensitivity and specificity

Sort findings by Tag

Sort findings by Differential Diagnosis

Jump To

Good Positive and Negative Likelihood Ratios

Good Negative Likelihood Ratio

Good Positive Likelihood Ratio

Poorly Diagnostic Findings

Viral Warts: Likelihood Ratios

Introduction: aka Verruca Vulgaris

[Edit Diagnosis] [Merge dx] [Add prevalence]

Tags: Dermatologic Tag this Diagnosis.

The likelihood ratios of findings for Viral Warts 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 Negative Likelihood Ratio
Finding	Result	+LR	-LR
[ + ] Discrete margin	+ 0 -	1.3	0
Study: Arch Dermatol. 1998 Dec;134(12):1586-9. PMID: 9875198

Good Positive Likelihood Ratio
Finding	Result	+LR	-LR
[ + ] Black dots	+ 0 -	3	0.8
Study: Arch Dermatol. 1998 Dec;134(12):1586-9. PMID: 9875198

Poorly Diagnostic Findings
Finding	Result	+LR	-LR
[ + ] Papillomatous surface	+ 0 -	1.4	0.9
Study: Arch Dermatol. 1998 Dec;134(12):1586-9. PMID: 9875198