Table 4

Respiratory system compliance before and after salbutamol aerosol

Device used		Respiratory system compliance (ml/cm H₂O/kg): mean (SEM)
Device used		Before	15 min	30 min	60 min	120 min	p^4-150
Study 1:
1 (MDI)	1.06 (0.29)	1.17 (0.34)	1.19 (0.36)	1.22 (0.35)	1.18 (0.36)	0.199
2 (Jet)	0.98 (0.30)	1.02 (0.33)	1.07 (0.35)	1.07 (0.34)	1.06 (0.37)	0.527
3 (Ultrasonic)	0.96 (0.32)	1.11 (0.33)	1.15 (0.37)	1.11 (0.33)	1.07 (0.34)	0.174
Study 2:
1 (MDI)	0.84 (0.13)	0.81 (0.13)	0.88 (0.15)	0.88 (0.15)	0.85 (0.13)	0.087
2 (Jet)	0.84 (0.13)	0.87 (0.14)	0.87 (0.13)	0.88 (0.13)	0.83 (0.12)	0.203
3 (Ultrasonic)	0.84 (0.13)	0.90 (0.13)	0.95 (0.14)	0.92 (0.13)	0.89 (0.13)	<0.0001^4-151

↵4-150 One way repeated measures ANOVA.
↵4-151 Pairwise comparison by Stedent-Newman-Keul method: before < all the rest; p<0.05.