RESULTS	There was a trend towards earlier weaning from the respirator in the PTX group ( 10.0 + / -3.5 h ) ( min/max : 4/16 ; confidence interval ( ConF ) : 1.8 h ) than the control group ( 12.3 + / -4.2 h ) ( min/max : 5-24 ; ConI : 2.4 h ) ( p = 0.077 ) .\