“…MASI score reduction, defined as change in MASI score before and after treatment, was the primary outcome measure of 12 studies with TA treatment alone [ 12 , 14 , 16 , 17 , 20 , 21 , 23 – 25 , 27 , 29 , 30 ]. Among these studies, 5 trials [ 12 , 17 , 24 , 27 , 29 ] with TA injection were pooled together using the random effects model (SMD, -1.673; 95% CI, -1.990 to -1.356; P < 0.0001; I 2 = 47.6%). Six trials with topical TA were pooled together to be analyzed [ 14 , 16 , 23 , 25 , 29 , 30 ], and the random effects model was applied (SMD, -1.850; 95% CI, -2.556 to -1.144; P < 0.0001; I 2 = 85.6%).…”