In trainees , intubation times were shorter for the nasal route-median ( inter-quartile range ) time ( s ) to carinal view was @ ( @-@ ) for the nasal route vs @ ( @-@ ) for the oral route ( P = @ ) , and the median time to successful tracheal intubation were @ ( @-@ ) vs @ ( @-@ ) , P = @ , for the nasal and oral routes , respectively .