Table 4.

Tidal volume (ml) in both groups

Tidal volume	Group I (Magnesium) mean ± SD	Group II (Control) mean ± SD	P-value
After induction	131.4 ± 43.9	176.3 ± 44.5	0.003*
10 min.	131.0 ± 40.8	177.8 ± 42.5	0.001*
20 min.	131.5 ± 38.4	175.5 ± 43.8	0.002*
30 min.	129.8 ± 42.3	173.4 ± 44.2	0.003*
40 min.	129.6 ± 38.8	170.9 ± 38.4	0.002*
50 min.	128.9 ± 39.5	169.5 ± 38.1	0.002*
60 min.	125.9 ± 36.8	169.3 ± 38.3	0.001*
70 min.	123.0 ± 42.1	170.0 ± 39.9	0.013*
80 min.	133.9 ± 43.8	185.0 ± 30.4	0.006*

Group I: magnesium group, Group II: control group

Data are as mean ± SD

*Statistically significant

ml milliliter