The effectiveness results were as follows:
Heart rates increased significantly in both groups after bronchodilator delivery: from 152 +/- 3 to 157 +/- 3 per minute in the MDI group and from 137 +/- 3 to 142 +/- 3 per minute in the Jet group, (p<0.001). These differences were significantly different over time, (p<0.001), but not in terms of interaction of treatment and time, (p=0.08).
Respiratory rates also increased in both groups: from 42 +/- 3 to 45 +/- 3 per minute in the MDI group and from 43 +/- 3 to 47 +/- 3 per minute in the Jet group, (p<0.05). These were not significant over time and interaction of treatment.
The oxygen saturation was also beneficial in both groups, but the percentage increase in the Jet group was statistically greater: from 96.3% +/- 0.4% to 97.2% +/- 0.4% in the MDI group and from 96.1% +/- 0.3% to 97.8% +/- 0.3% in the Jet group, (p<0.01). These differences were not significant over time, but were significant when interaction of treatment and time was considered.
CDYN increased in both groups: from 0.83 +/- 0.10 mL/cm H2O to 0.95 +/- 0.12 mL/cm H2O in the MDI group and from 0.90 +/- 0.12 mL/cm H2O to 0.93 +/- 0.13 mL/cm H2O in the Jet group, (p<0.05). These differences were not significant over time and interaction of time and treatment.
RAWE decreased statistically significantly in both groups: from 188 +/- 19 cm H2O/L/s to 142 +/- 12 cm H2O/L/s in the MDI group and from 161 +/- 21 cm H2O/L/s to 138 +/- 14 cm H2O/L/s in the Jet group, (p<0.001). Not significant over time, and treatment and time interaction.