Subgroup analysis of PCS changes from baseline.
*Paired t-testIn the low PCS prednisone subgroup, there was a statistically significant increase of 5.0 points (15.2%) in the mean PCS at 8 weeks, p = 0.004. In the low PCS placebo subgroup, there was a statistically significant increase of 3.0 points (9.1%) in the mean PCS at 8 weeks, p = 0.043. After the washout, the mean scores in both low PCS subgroups returned to baseline levels. No statistically significant change in the mean PCS of either high PCS subgroup was observed.The MCS data are presented in 