At week @ , the proportion of patients with a PGA score of @ or @ was significantly higher in each guselkumab group than in the placebo group : @ % in the @-mg group , @ % in the @-mg group , @ % in the @-mg group , @ % in the @-mg group , and @ % in the @-mg group , as compared with @ % in the placebo group ( P@ @ for all comparisons ) .