Logistic probit regression analysis revealed that the ED and ED ( @ % CI ) of sevoflurane in neonates were @ % ( @-@ @ ) and @ % ( @-@ @ ) , respectively , in the control group ; @ % ( @-@ @ ) and @ % ( @-@ @ ) , respectively , in the fent@ group ; and @ % ( @-@ @ ) and @ % ( @-@ @ ) , respectively , in the fent@ group .