Abstract 346
Group
Mean (95% CI) magnesium
Sodium
Mean potassium
Calcium
I
0.683 (0.6–0.76)*
134.8
3.69
2.26
II
0.807 (0.73–0.89)
133.8
3.69
2.28
III
0.865 (0.81–0.92)
137.8
4.2
2.23