Table 4.

Comparison of the respiratory system’s compliance indexes between the two groups of patients before and after treatment (mean ± SD)

Group	Before treatment	Treatment 24 h	Treatment 48 h	Treatment 72 h
Raw [cmH2O/ (L·S)]
Sequential group (n = 54)	23.85 ± 2.74	18.63 ± 2.58	17.40 ± 2.44	18.18 ± 2.60
Regular group (n = 54)	23.33 ± 2.60	19.94 ± 2.71	18.87 ± 2.73	18.83 ± 2.84
t value	1.012	-2.573	-2.950	-1.241
P value	0.314	0.011	0.004	0.218
Tidal volume (mL/kg)
Sequential group (n = 54)	6.58 ± 1.04	9.58 ± 1.14	9.40 ± 0.96	9.62 ± 1.20
Regular group (n = 54)	6.82 ± 0.95	8.81 ± 1.23	9.13 ± 1.02	9.32 ± 0.98
t value	-1.252	3.374	1.416	1.423
P value	0.213	0.001	0.160	0.158
Cst (mL/cmH2O)
Sequential group (n = 54)	22.84 ± 2.60	24.73 ± 2.94	26.58 ± 3.02	25.72 ± 2.54
Regular group (n = 54)	23.36 ± 2.72	23.60 ± 2.76	24.81 ± 3.13	25.00 ± 2.62
t value	-1.016	2.059	2.990	1.450
P value	0.312	0.042	0.003	0.150