Comparison of the inhaled drug doses (mean ± standard deviation [%]) for the three flow rates and two breathing patterns
O2(total) Flow (L/min)Healthy patternDistressed PatternP- Value
9 (30)2.99±0.10*2.30±0.060.008
12 (36)1.91±0.022.46±0.11**0.008
15 (41)1.70±0.042.22±0.090.008
P- Value<0.0010.003&nbsp;

  • * P<0.001 Compared to 12 and 15 L/min ** P<0.05 Compared to 9 and 15 L/min