The prednisone group showed an adjusted mean @-point ( @ % CI , @-@ @ ; P = @ ) greater improvement in the SF-@ PCS score at @ weeks , no difference in the SF-@ PCS score at @ weeks ( mean , @ ; @ % CI , -@ to @ ; P = @ ) , no change in the SF-@ MCS score at @ weeks ( mean , @ ; @ % CI , -@ to @ ; P = @ ) , and an adjusted @-point ( @ % CI , @-@ @ ; P = @ ) greater improvement in the SF-@ MCS score at @ weeks .