Table 3.

Comparison of compliance, raw, PIP, and Pplateau values in groups

		T1	T2	T3	T4
Compliance	Group C (n = 30)	34.6 ± 8.1	27.3 ± 5.6	39 ± 9	37.4 ± 8.2b
	Group R (n = 30)	35.8 ± 11.3	28.2 ± 6.3	40.2 ± 11.1	45.6±15c
	P	0.988	0.888	0.941	0.043a
Raw (cmH2O lt−1 sn−1)	Group C (n = 30)	16.6 ± 5.7	15.2 ± 3.6	13.1 ± 3.2d	13.1 ± 3.1d
	Group R (n = 30)	16.2 ± 5.6	16.1 ± 4.4	14 ± 3.6d	14.4 ± 4.8e
	P	0.629	0.474	0.368	0.38
PIP (cmH2O)	Group C (n = 30)	26.2 ± 4.5	30.3 ± 3.8f	24.5 ± 3.3	25 ± 3.3
	Group R (n = 30)	26.4 ± 4.2	30.1 ± 3.4f	24.7 ± 4.7	24 ± 4.1
	P	0.795	0.818	0.97	0.176
Pplateau (cmH2O)	Group C (n = 30)	22.5 ± 4.7	26.1 ± 5.6f	21.3 ± 3	21.8 ± 3.2
	Group R (n = 30)	23.4 ± 3.8	27.6 ± 3.5f	21.5 ± 4.6	20.4 ± 4
	P	0.543	0.338	0.87	0.132

Raw, air way resistance; PIP, peak inspiratory pressure; Pplateau, plateau pressure. Values given as mean ± standard deviation. Comparisons between groups used Mann-Whitney U test; comparisons within groups used Wilcoxon sign test

^aComparison between groups is statistically significant

^bWithin groups, comparisons with T2 are statistically significant

^cWithin groups, comparisons with T1, T2, and T3 are statistically significant

^dWithin groups, comparisons with T1 and T2 are statistically significant

^eWithin groups, comparisons with T1 statistically significant

^fWithin groups, comparisons with T1, T3, and T4 are statistically significant