Secondary outcomes were 52 % versus 34 % excellent outcomes ( relative risks , 1.51 ; 95 % confidence intervals , 1.13-2 .02 ; P = 0.007 ) ; 60 % versus 53 % favorable outcome ( relative risks , 1.13 ; 95 % confidence intervals , 0.90-1 .41 ; P = 0.31 ) ; and ordinal Cochran-Mantel-Haenszel P = 0.10 .