Pemphigus Vulgaris: Likelihood Ratios

Introduction: None written.

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

Good Positive and Negative Likelihood Ratios

Nikolskiy Sign
Duplicate

11.5

0.3

"Marginal": an attempt to extend the erosion to the surrounding normal-appearing skin by pulling the remnant of the blister wall or rubbing the skin with a twisting motion with the thumb to avoid applying strong shearing force at the periphery of existing lesions

Study: J Am Acad Dermatol. 2006 Mar;54(3):411-5. PMID: 16488290

Good Positive Likelihood Ratio

Nikolskiy Sign
Duplicate

inf

0.6

"Direct": an attempt to induce the erosion by pressure applied as described above (rubbing the skin with a twisting motion with the thumb) to normal-appearing areas of skin distant from the lesions

Study: J Am Acad Dermatol. 2006 Mar;54(3):411-5. PMID: 16488290