Intervention group demonstrated better patient assessment : 63.5 8.1 % ( control ) versus 79.8 11.9 % ( P = 0.002 ) , management 56.0 % 19.7 % versus 72.2 10.3 % ( P = 0.014 ) , and nontechnical skills : W-NOTECHS 17.75 2.06 versus 23.33 1.21 ( P < 0.001 ) .