Table 2.

Serum magnesium concentration (mEq.L⁻¹) in the study groups.

	Group Mg	Group C	p-value
	(n = 45)	(n = 41)
Preoperative	2.0 (0.9–3.0)	1.8 (0.8–2.7)	0.63
Immediately after operation	3.1 (1.5–4.8)	1.9 (0.9–2.8)	0.000
One hour after operation	3.2 (1.7–4.2)	1.9 (0.9–2.8)	0.000

Values are mean (minimum – maximum). Student's t test.