“…Psoriasis area severity index (PASI) was also calculated. PASI was calculated as elucidated by Bhor U et al 7 Four sites of affection, the head (h), upper limb (u), trunk (t) and lower limbs (l), were separately scored by using three parameters, erythema (E), infiltration (I) and desquamation (D), each of which was graded on a severity scale of 0-4, where 0 = nil, 1 = mild, 2 = moderate, 3 = severe and 4 = very severe. The area wise percentage involvement of the involved sites was calculated as: 1 ≤ 10% area; 2 = 10-29%; 3 = 30-49%; 4 = 50-69%; 5 = 70-89%; and 6 = more than 90%.…”