Percentages of remitters ( ie , a score of @ in the @-item Hamilton Depression Rating Scale -LSB- HDRS-@ -RSB- ) and HDRS-@ score changes from baseline to week @ were compared in the following @ pairs , using Fisher exact test or mixed-effects model for repeated measures : ( @ ) subjects who failed to show a @ % decrease in the HDRS-@ total scores at week @ but were assigned to continue @ mg/d ( stay ( @ ) group ) versus those who were assigned to increase the dose to @ mg/d ( increase ( @ ) group ) and ( @ ) subjects who failed to show a @ % decrease in the HDRS-@ total scores with @ mg/d at week @ but were assigned to continue @ mg/d ( stay ( @ ) group ) versus those who were assigned to increase the dose to @ mg/d ( increase ( @ ) group ) .