RESULTS	No significant difference in time to developing persistent TD was observed during treatment with OLZ or CNV ( cumulative incidence : OLZ , 2.5 % [ 95 % confidence interval [ 95 % CI ] : 0.5-7 .0 ] ; CNV , 5.5 % [ 95 % CI : 2.1-11 .6 ] , P = .193 ) .\