Table 2.

Mechanical ventilation time and ICU stay in two groups (x ± s).

Group	n	Mechanical ventilation time (d)	ICU stay (d)
Control group	45	14.28 ± 3.71	18.26 ± 4.53
Study group	45	11.04 ± 4.08	13.22 ± 3.17
t		3.941	6.115
P value		<0.001	<0.001