ICU transfer ( 17.8 % vs 18.2 % ; odds ratio : 0.972 ; 95 % confidence interval [ CI ] : 0.635-1 .490 ) and hospital mortality ( 7.3 % vs 7.7 % ; odds ratio : 0.947 ; 95 % CI : 0.509-1 .764 ) were similar for the intervention and control groups .