(b).

Group	Total cholesterol	Triglyceride	Low-density lipoprotein	High-density lipoprotein
	(mmol/L)	(mmol/L)	(mmol/L)	(mmol/L)
Simvastatin group	4.01 ± 0.94	1.03 ± 0.32	2.47 ± 0.58	1.10 ± 0.20
Control group	4.18 ± 0.85	1.14 ± 0.30	2.60 ± 0.49	1.19 ± 0.29
t	−1.057	−1.876	−1.224	−1.906
P	0.293	0.063	0.224	0.059

^∗ P < 0.05 compared with control group. EF: ejection fraction; ICU: intensive care unit.