No significant differences were detected in mortality at 24 hours ( 12.7 % in 1:1:1 group vs 17.0 % in 1:1:2 group ; difference , -4.2 % [ 95 % CI , -9.6 % to 1.1 % ] ; P = .12 ) or at 30 days ( 22.4 % vs 26.1 % , respectively ; difference , -3.7 % [ 95 % CI , -10.2 % to 2.7 % ] ; P = .26 ) .