Table 1.

Lichen Planopilaris Activity Index (LPPAI).⁶

LPPAI (0-10) = (pruritus + pain + burning sensation)/3 + (diffuse erythema + perifollicular erythema + perifollicular desquamation)/3 + 2.5 (pull test) + 1,5(progression)/2

Signs and symptoms: 0 = absent, 1 = mild, 2 = moderate, 3 = severe.

Pull test 0 = no anagen and 1 = any anagen.

Progression 0 = equal, 1 = indeterminate, 2 = worsening.

Adapted from: Chiang C, et al. 2010.⁶